{"timestamp": "2026-09-22 21:40:38", "data": {"options": [{"option": "ARDT261016C00002500", "bid": 7.3, "bid_size": 40.0, "ask": 9.6, "ask_size": 24.0, "iv": 2.5515, "open_interest": 0.0, "volume": 0.0, "delta": 0.9848, "gamma": 0.0042, "vega": 0.0011, "theta": -0.0067, "rho": 0.0016, "theo": 8.5096, "change": 0.0, "open": 0.0, "high": 0.0, "low": 0.0, "tick": "no_change", "last_trade_price": 0.0, "last_trade_time": null, "percent_change": 0.0, "prev_day_close": 8.05000019073486}, {"option": "ARDT261016P00002500", "bid": 0.0, "bid_size": 0.0, "ask": 1.55, "ask_size": 338.0, "iv": 6.6906, "open_interest": 0.0, "volume": 0.0, "delta": -0.016, "gamma": 0.0042, "vega": 0.0011, "theta": -0.0076, "rho": -0.0002, "theo": 0.0729, "change": 0.0, "open": 0.0, "high": 0.0, "low": 0.0, "tick": "no_change", "last_trade_price": 0.0, "last_trade_time": null, "percent_change": 0.0, "prev_day_close": 0.375}, {"option": "ARDT261016C00005000", "bid": 5.0, "bid_size": 75.0, "ask": 6.2, "ask_size": 15.0, "iv": 0.0, "open_interest": 0.0, "volume": 0.0, "delta": 0.963, "gamma": 0.0146, "vega": 0.0023, "theta": -0.0088, "rho": 0.0032, "theo": 6.0471, "change": 0.0, "open": 0.0, "high": 0.0, "low": 0.0, "tick": "no_change", "last_trade_price": 0.0, "last_trade_time": null, "percent_change": 0.0, "prev_day_close": 5.5}, {"option": "ARDT261016P00005000", "bid": 0.0, "bid_size": 0.0, "ask": 1.55, "ask_size": 338.0, "iv": 3.7503, "open_interest": 0.0, "volume": 0.0, "delta": -0.0378, "gamma": 0.0146, "vega": 0.0023, "theta": -0.0094, "rho": -0.0003, "theo": 0.1024, "change": 0.0, "open": 0.0, "high": 0.0, "low": 0.0, "tick": "no_change", "last_trade_price": 0.0, "last_trade_time": null, "percent_change": 0.0, "prev_day_close": 0.375}, {"option": "ARDT261016C00007500", "bid": 2.6, "bid_size": 75.0, "ask": 3.9, "ask_size": 15.0, "iv": 0.0, "open_interest": 0.0, "volume": 0.0, "delta": 0.9152, "gamma": 0.0458, "vega": 0.0044, "theta": -0.0106, "rho": 0.0046, "theo": 3.6037, "change": 0.0, "open": 0.0, "high": 0.0, "low": 0.0, "tick": "no_change", "last_trade_price": 0.0, "last_trade_time": null, "percent_change": 0.0, "prev_day_close": 3.0}, {"option": "ARDT261016P00007500", "bid": 0.0, "bid_size": 0.0, "ask": 1.55, "ask_size": 95.0, "iv": 2.2388, "open_interest": 0.0, "volume": 0.0, "delta": -0.0858, "gamma": 0.0459, "vega": 0.0044, "theta": -0.011, "rho": -0.0007, "theo": 0.1512, "change": 0.0, "open": 0.0, "high": 0.0, "low": 0.0, "tick": "no_change", "last_trade_price": 0.0, "last_trade_time": null, "percent_change": 0.0, "prev_day_close": 0.375}, {"option": "ARDT261016C00010000", "bid": 0.1, "bid_size": 952.0, "ask": 1.5, "ask_size": 19.0, "iv": 0.0, "open_interest": 2.0, "volume": 0.0, "delta": 0.7362, "gamma": 0.1779, "vega": 0.0092, "theta": -0.0124, "rho": 0.0048, "theo": 1.2814, "change": 0.0, "open": 0.0, "high": 0.0, "low": 0.0, "tick": "down", "last_trade_price": 1.2, "last_trade_time": "2026-09-11T14:42:39", "percent_change": 0.0, "prev_day_close": 0.825000017881394}, {"option": "ARDT261016P00010000", "bid": 0.0, "bid_size": 0.0, "ask": 0.95, "ask_size": 55.0, "iv": 0.816, "open_interest": 0.0, "volume": 0.0, "delta": -0.266, "gamma": 0.179, "vega": 0.0092, "theta": -0.0126, "rho": -0.002, "theo": 0.3222, "change": 0.0, "open": 0.0, "high": 0.0, "low": 0.0, "tick": "no_change", "last_trade_price": 0.0, "last_trade_time": null, "percent_change": 0.0, "prev_day_close": 0.474999994039536}, {"option": "ARDT261016C00012500", "bid": 0.0, "bid_size": 0.0, "ask": 0.5, "ask_size": 55.0, "iv": 0.6625, "open_interest": 0.0, "volume": 0.0, "delta": 0.2639, "gamma": 0.1654, "vega": 0.0092, "theta": -0.0134, "rho": 0.0018, "theo": 0.2855, "change": 0.0, "open": 0.0, "high": 0.0, "low": 0.0, "tick": "no_change", "last_trade_price": 0.0, "last_trade_time": null, "percent_change": 0.0, "prev_day_close": 0.375}, {"option": "ARDT261016P00012500", "bid": 0.45, "bid_size": 410.0, "ask": 3.1, "ask_size": 55.0, "iv": 0.6423, "open_interest": 10.0, "volume": 0.0, "delta": -0.7426, "gamma": 0.1681, "vega": 0.009, "theta": -0.0134, "rho": -0.0047, "theo": 1.8271, "change": 0.0, "open": 0.0, "high": 0.0, "low": 0.0, "tick": "down", "last_trade_price": 1.6, "last_trade_time": "2026-09-14T15:20:42", "percent_change": 0.0, "prev_day_close": 2.02500003576279}, {"option": "ARDT261016C00015000", "bid": 0.0, "bid_size": 0.0, "ask": 0.35, "ask_size": 97.0, "iv": 1.0008, "open_interest": 0.0, "volume": 0.0, "delta": 0.1342, "gamma": 0.078, "vega": 0.006, "theta": -0.0122, "rho": 0.0009, "theo": 0.1644, "change": 0.0, "open": 0.0, "high": 0.0, "low": 0.0, "tick": "no_change", "last_trade_price": 0.0, "last_trade_time": null, "percent_change": 0.0, "prev_day_close": 0.375}, {"option": "ARDT261016P00015000", "bid": 3.8, "bid_size": 17.0, "ask": 4.9, "ask_size": 55.0, "iv": 1.1964, "open_interest": 0.0, "volume": 0.0, "delta": -0.8728, "gamma": 0.0798, "vega": 0.0058, "theta": -0.012, "rho": -0.0054, "theo": 4.2072, "change": 0.0, "open": 0.0, "high": 0.0, "low": 0.0, "tick": "no_change", "last_trade_price": 0.0, "last_trade_time": null, "percent_change": 0.0, "prev_day_close": 4.54999995231628}, {"option": "ARDT261016C00017500", "bid": 0.0, "bid_size": 0.0, "ask": 1.55, "ask_size": 339.0, "iv": 2.1007, "open_interest": 0.0, "volume": 0.0, "delta": 0.0879, "gamma": 0.0471, "vega": 0.0044, "theta": -0.0108, "rho": 0.0006, "theo": 0.1176, "change": 0.0, "open": 0.0, "high": 0.0, "low": 0.0, "tick": "no_change", "last_trade_price": 0.0, "last_trade_time": null, "percent_change": 0.0, "prev_day_close": 0.375}, {"option": "ARDT261016P00017500", "bid": 6.1, "bid_size": 75.0, "ask": 7.6, "ask_size": 55.0, "iv": 1.5438, "open_interest": 0.0, "volume": 0.0, "delta": -0.9195, "gamma": 0.0487, "vega": 0.0041, "theta": -0.0105, "rho": -0.0056, "theo": 6.6606, "change": 0.0, "open": 0.0, "high": 0.0, "low": 0.0, "tick": "no_change", "last_trade_price": 0.0, "last_trade_time": null, "percent_change": 0.0, "prev_day_close": 6.94999980926514}, {"option": "ARDT261016C00020000", "bid": 0.0, "bid_size": 0.0, "ask": 1.55, "ask_size": 339.0, "iv": 2.4079, "open_interest": 0.0, "volume": 0.0, "delta": 0.0642, "gamma": 0.0324, "vega": 0.0035, "theta": -0.0096, "rho": 0.0004, "theo": 0.0913, "change": 0.0, "open": 0.0, "high": 0.0, "low": 0.0, "tick": "no_change", "last_trade_price": 0.0, "last_trade_time": null, "percent_change": 0.0, "prev_day_close": 0.375}, {"option": "ARDT261016P00020000", "bid": 8.6, "bid_size": 87.0, "ask": 10.1, "ask_size": 55.0, "iv": 1.824, "open_interest": 0.0, "volume": 0.0, "delta": -0.9437, "gamma": 0.0341, "vega": 0.0031, "theta": -0.0092, "rho": -0.0056, "theo": 9.1345, "change": 0.0, "open": 0.0, "high": 0.0, "low": 0.0, "tick": "no_change", "last_trade_price": 0.0, "last_trade_time": null, "percent_change": 0.0, "prev_day_close": 9.44999980926514}, {"option": "ARDT261120C00002500", "bid": 7.4, "bid_size": 40.0, "ask": 8.8, "ask_size": 14.0, "iv": 0.0, "open_interest": 0.0, "volume": 0.0, "delta": 0.9928, "gamma": 0.0032, "vega": 0.0007, "theta": -0.0005, "rho": 0.0013, "theo": 8.4307, "change": 0.0, "open": 0.0, "high": 0.0, "low": 0.0, "tick": "no_change", "last_trade_price": 0.0, "last_trade_time": null, "percent_change": 0.0, "prev_day_close": 7.60000014305115}, {"option": "ARDT261120P00002500", "bid": 0.0, "bid_size": 0.0, "ask": 1.6, "ask_size": 258.0, "iv": 4.3352, "open_interest": 8.0, "volume": 0.0, "delta": -0.0075, "gamma": 0.0027, "vega": 0.0009, "theta": -0.0013, "rho": -0.0002, "theo": 0.0237, "change": 0.0, "open": 0.0, "high": 0.0, "low": 0.0, "tick": "no_change", "last_trade_price": 0.05, "last_trade_time": "2026-09-09T12:31:38", "percent_change": 0.0, "prev_day_close": 0.025000000372529}, {"option": "ARDT261120C00005000", "bid": 5.0, "bid_size": 75.0, "ask": 6.3, "ask_size": 15.0, "iv": 0.0, "open_interest": 0.0, "volume": 0.0, "delta": 0.9748, "gamma": 0.0123, "vega": 0.0024, "theta": -0.0017, "rho": 0.0041, "theo": 5.961, "change": 0.0, "open": 0.0, "high": 0.0, "low": 0.0, "tick": "down", "last_trade_price": 5.59, "last_trade_time": "2026-07-30T15:07:01", "percent_change": 0.0, "prev_day_close": 5.75}, {"option": "ARDT261120P00005000", "bid": 0.0, "bid_size": 0.0, "ask": 0.95, "ask_size": 140.0, "iv": 1.9751, "open_interest": 7.0, "volume": 0.0, "delta": -0.024, "gamma": 0.0116, "vega": 0.0025, "theta": -0.0023, "rho": -0.0005, "theo": 0.0505, "change": 0.0, "open": 0.0, "high": 0.0, "low": 0.0, "tick": "no_change", "last_trade_price": 0.05, "last_trade_time": "2026-09-03T09:30:02", "percent_change": 0.0, "prev_day_close": 0.375}, {"option": "ARDT261120C00007500", "bid": 2.7, "bid_size": 75.0, "ask": 3.9, "ask_size": 19.0, "iv": 0.0, "open_interest": 4.0, "volume": 0.0, "delta": 0.9175, "gamma": 0.0458, "vega": 0.0065, "theta": -0.0036, "rho": 0.0081, "theo": 3.5501, "change": 0.0, "open": 0.0, "high": 0.0, "low": 0.0, "tick": "up", "last_trade_price": 2.52, "last_trade_time": "2026-06-16T11:35:43", "percent_change": 0.0, "prev_day_close": 3.10000002384186}, {"option": "ARDT261120P00007500", "bid": 0.0, "bid_size": 0.0, "ask": 0.75, "ask_size": 55.0, "iv": 1.0442, "open_interest": 19.0, "volume": 0.0, "delta": -0.0792, "gamma": 0.045, "vega": 0.0065, "theta": -0.004, "rho": -0.0016, "theo": 0.1307, "change": 0.0, "open": 0.0, "high": 0.0, "low": 0.0, "tick": "no_change", "last_trade_price": 0.75, "last_trade_time": "2026-06-04T09:57:47", "percent_change": 0.0, "prev_day_close": 0.375}, {"option": "ARDT261120C00010000", "bid": 0.85, "bid_size": 75.0, "ask": 2.15, "ask_size": 15.0, "iv": 0.5778, "open_interest": 47.0, "volume": 0.0, "delta": 0.6976, "gamma": 0.1481, "vega": 0.0152, "theta": -0.0066, "rho": 0.0098, "theo": 1.4263, "change": 0.0, "open": 0.0, "high": 0.0, "low": 0.0, "tick": "down", "last_trade_price": 1.4, "last_trade_time": "2026-08-28T15:49:35", "percent_change": 0.0, "prev_day_close": 1.32500001788139}, {"option": "ARDT261120P00010000", "bid": 0.0, "bid_size": 0.0, "ask": 1.4, "ask_size": 55.0, "iv": 0.6639, "open_interest": 11.0, "volume": 0.0, "delta": -0.298, "gamma": 0.1484, "vega": 0.0152, "theta": -0.0068, "rho": -0.0056, "theo": 0.4926, "change": 0.0, "open": 0.0, "high": 0.0, "low": 0.0, "tick": "up", "last_trade_price": 0.85, "last_trade_time": "2026-08-19T14:26:52", "percent_change": 0.0, "prev_day_close": 1.15000002086163}, {"option": "ARDT261120C00012500", "bid": 0.0, "bid_size": 0.0, "ask": 0.95, "ask_size": 55.0, "iv": 0.5785, "open_interest": 146.0, "volume": 0.0, "delta": 0.292, "gamma": 0.1525, "vega": 0.0151, "theta": -0.0064, "rho": 0.0047, "theo": 0.3671, "change": 0.0, "open": 0.0, "high": 0.0, "low": 0.0, "tick": "down", "last_trade_price": 0.35, "last_trade_time": "2026-09-03T14:45:46", "percent_change": 0.0, "prev_day_close": 0.375}, {"option": "ARDT261120P00012500", "bid": 0.65, "bid_size": 75.0, "ask": 3.5, "ask_size": 55.0, "iv": 0.608, "open_interest": 1.0, "volume": 0.0, "delta": -0.707, "gamma": 0.155, "vega": 0.015, "theta": -0.0063, "rho": -0.012, "theo": 1.9211, "change": 0.0, "open": 0.0, "high": 0.0, "low": 0.0, "tick": "down", "last_trade_price": 1.95, "last_trade_time": "2026-09-08T11:01:25", "percent_change": 0.0, "prev_day_close": 2.79999995231628}, {"option": "ARDT261120C00015000", "bid": 0.0, "bid_size": 0.0, "ask": 0.4, "ask_size": 55.0, "iv": 0.6675, "open_interest": 6.0, "volume": 0.0, "delta": 0.1089, "gamma": 0.0728, "vega": 0.0082, "theta": -0.0039, "rho": 0.0018, "theo": 0.1187, "change": 0.0, "open": 0.0, "high": 0.0, "low": 0.0, "tick": "down", "last_trade_price": 0.15, "last_trade_time": "2026-06-22T12:45:06", "percent_change": 0.0, "prev_day_close": 0.375}, {"option": "ARDT261120P00015000", "bid": 3.7, "bid_size": 75.0, "ask": 5.2, "ask_size": 55.0, "iv": 0.8438, "open_interest": 0.0, "volume": 0.0, "delta": -0.8951, "gamma": 0.0767, "vega": 0.0078, "theta": -0.0036, "rho": -0.0122, "theo": 4.1684, "change": 0.0, "open": 0.0, "high": 0.0, "low": 0.0, "tick": "no_change", "last_trade_price": 0.0, "last_trade_time": null, "percent_change": 0.0, "prev_day_close": 4.54999995231628}, {"option": "ARDT261120C00017500", "bid": 0.0, "bid_size": 0.0, "ask": 1.6, "ask_size": 259.0, "iv": 1.3631, "open_interest": 0.0, "volume": 0.0, "delta": 0.0482, "gamma": 0.0348, "vega": 0.0044, "theta": -0.0023, "rho": 0.0008, "theo": 0.0503, "change": 0.0, "open": 0.0, "high": 0.0, "low": 0.0, "tick": "no_change", "last_trade_price": 0.0, "last_trade_time": null, "percent_change": 0.0, "prev_day_close": 0.474999994039536}, {"option": "ARDT261120P00017500", "bid": 6.2, "bid_size": 75.0, "ask": 7.6, "ask_size": 55.0, "iv": 1.0354, "open_interest": 0.0, "volume": 0.0, "delta": -0.9605, "gamma": 0.0397, "vega": 0.0036, "theta": -0.0018, "rho": -0.0088, "theo": 6.6013, "change": 0.0, "open": 0.0, "high": 0.0, "low": 0.0, "tick": "no_change", "last_trade_price": 0.0, "last_trade_time": null, "percent_change": 0.0, "prev_day_close": 6.94999980926514}, {"option": "ARDT261120C00020000", "bid": 0.0, "bid_size": 0.0, "ask": 0.95, "ask_size": 138.0, "iv": 1.3109, "open_interest": 0.0, "volume": 0.0, "delta": 0.0245, "gamma": 0.0183, "vega": 0.0025, "theta": -0.0014, "rho": 0.0004, "theo": 0.025, "change": 0.0, "open": 0.0, "high": 0.0, "low": 0.0, "tick": "no_change", "last_trade_price": 0.0, "last_trade_time": null, "percent_change": 0.0, "prev_day_close": 0.474999994039536}, {"option": "ARDT261120P00020000", "bid": 8.7, "bid_size": 40.0, "ask": 10.3, "ask_size": 24.0, "iv": 1.3126, "open_interest": 0.0, "volume": 0.0, "delta": -0.9892, "gamma": 0.0243, "vega": 0.0012, "theta": -0.0007, "rho": -0.0042, "theo": 9.0821, "change": 0.0, "open": 0.0, "high": 0.0, "low": 0.0, "tick": "up", "last_trade_price": 10.93, "last_trade_time": "2026-06-15T10:14:51", "percent_change": 0.0, "prev_day_close": 9.45000004768372}, {"option": "ARDT270115C00002500", "bid": 6.6, "bid_size": 40.0, "ask": 9.4, "ask_size": 14.0, "iv": 0.0, "open_interest": 7.0, "volume": 0.0, "delta": 0.9707, "gamma": 0.0058, "vega": 0.0036, "theta": -0.0022, "rho": 0.004, "theo": 8.5609, "change": 0.0, "open": 0.0, "high": 0.0, "low": 0.0, "tick": "up", "last_trade_price": 8.7, "last_trade_time": "2026-08-05T09:33:12", "percent_change": 0.0, "prev_day_close": 8.14999985694885}, {"option": "ARDT270115P00002500", "bid": 0.0, "bid_size": 0.0, "ask": 1.8, "ask_size": 340.0, "iv": 3.2984, "open_interest": 1.0, "volume": 0.0, "delta": -0.0264, "gamma": 0.0053, "vega": 0.0038, "theta": -0.003, "rho": -0.0014, "theo": 0.1769, "change": 0.0, "open": 0.0, "high": 0.0, "low": 0.0, "tick": "down", "last_trade_price": 0.15, "last_trade_time": "2026-04-16T10:26:35", "percent_change": 0.0, "prev_day_close": 0.375}, {"option": "ARDT270115C00005000", "bid": 5.0, "bid_size": 75.0, "ask": 6.5, "ask_size": 15.0, "iv": 0.0, "open_interest": 30.0, "volume": 0.0, "delta": 0.9316, "gamma": 0.0181, "vega": 0.0076, "theta": -0.0032, "rho": 0.0089, "theo": 6.1641, "change": 0.0, "open": 0.0, "high": 0.0, "low": 0.0, "tick": "down", "last_trade_price": 5.8, "last_trade_time": "2026-08-03T09:37:40", "percent_change": 0.0, "prev_day_close": 5.75}, {"option": "ARDT270115P00005000", "bid": 0.0, "bid_size": 0.0, "ask": 1.75, "ask_size": 340.0, "iv": 1.8159, "open_interest": 2.0, "volume": 0.0, "delta": -0.0638, "gamma": 0.0173, "vega": 0.0077, "theta": -0.0039, "rho": -0.0029, "theo": 0.2643, "change": 0.0, "open": 0.0, "high": 0.0, "low": 0.0, "tick": "down", "last_trade_price": 0.1, "last_trade_time": "2026-08-10T10:31:31", "percent_change": 0.0, "prev_day_close": 0.375}, {"option": "ARDT270115C00007500", "bid": 2.8, "bid_size": 75.0, "ask": 4.1, "ask_size": 18.0, "iv": 0.3804, "open_interest": 32.0, "volume": 0.0, "delta": 0.8538, "gamma": 0.0464, "vega": 0.0136, "theta": -0.0042, "rho": 0.0141, "theo": 3.844, "change": 0.0, "open": 0.0, "high": 0.0, "low": 0.0, "tick": "down", "last_trade_price": 3.9, "last_trade_time": "2026-08-25T11:11:01", "percent_change": 0.0, "prev_day_close": 3.30000007152557}, {"option": "ARDT270115P00007500", "bid": 0.0, "bid_size": 0.0, "ask": 1.85, "ask_size": 75.0, "iv": 1.1237, "open_interest": 180.0, "volume": 0.0, "delta": -0.1395, "gamma": 0.0458, "vega": 0.0136, "theta": -0.0046, "rho": -0.0058, "theo": 0.4221, "change": 0.0, "open": 0.0, "high": 0.0, "low": 0.0, "tick": "down", "last_trade_price": 0.2, "last_trade_time": "2026-09-14T12:56:01", "percent_change": 0.0, "prev_day_close": 0.375}, {"option": "ARDT270115C00010000", "bid": 1.0, "bid_size": 55.0, "ask": 2.6, "ask_size": 22.0, "iv": 0.5498, "open_interest": 109.0, "volume": 0.0, "delta": 0.6677, "gamma": 0.1036, "vega": 0.022, "theta": -0.0051, "rho": 0.0161, "theo": 1.8269, "change": 0.0, "open": 0.0, "high": 0.0, "low": 0.0, "tick": "down", "last_trade_price": 1.88, "last_trade_time": "2026-08-24T09:43:58", "percent_change": 0.0, "prev_day_close": 1.70000004768372}, {"option": "ARDT270115P00010000", "bid": 0.35, "bid_size": 14.0, "ask": 2.45, "ask_size": 75.0, "iv": 0.7987, "open_interest": 4.0, "volume": 0.0, "delta": -0.3246, "gamma": 0.104, "vega": 0.022, "theta": -0.0053, "rho": -0.0124, "theo": 0.8774, "change": 0.0, "open": 0.0, "high": 0.0, "low": 0.0, "tick": "up", "last_trade_price": 2.92, "last_trade_time": "2026-06-03T14:14:58", "percent_change": 0.0, "prev_day_close": 1.49999995529652}, {"option": "ARDT270115C00012500", "bid": 0.0, "bid_size": 0.0, "ask": 1.7, "ask_size": 75.0, "iv": 0.5766, "open_interest": 268.0, "volume": 0.0, "delta": 0.3869, "gamma": 0.1147, "vega": 0.0233, "theta": -0.0054, "rho": 0.0108, "theo": 0.7595, "change": 0.0, "open": 0.0, "high": 0.0, "low": 0.0, "tick": "down", "last_trade_price": 0.6, "last_trade_time": "2026-09-03T14:47:32", "percent_change": 0.0, "prev_day_close": 0.850000012665987}, {"option": "ARDT270115P00012500", "bid": 0.95, "bid_size": 75.0, "ask": 3.3, "ask_size": 75.0, "iv": 0.468, "open_interest": 3.0, "volume": 0.0, "delta": -0.609, "gamma": 0.1174, "vega": 0.0232, "theta": -0.0053, "rho": -0.0217, "theo": 2.285, "change": 0.0, "open": 0.0, "high": 0.0, "low": 0.0, "tick": "up", "last_trade_price": 5.0, "last_trade_time": "2026-06-03T14:14:01", "percent_change": 0.0, "prev_day_close": 2.92500007152557}, {"option": "ARDT270115C00015000", "bid": 0.0, "bid_size": 0.0, "ask": 0.75, "ask_size": 55.0, "iv": 0.5856, "open_interest": 559.0, "volume": 0.0, "delta": 0.2295, "gamma": 0.0801, "vega": 0.0185, "theta": -0.0048, "rho": 0.0066, "theo": 0.4213, "change": 0.0, "open": 0.0, "high": 0.0, "low": 0.0, "tick": "down", "last_trade_price": 0.3, "last_trade_time": "2026-09-08T11:32:04", "percent_change": 0.0, "prev_day_close": 0.425000011920929}, {"option": "ARDT270115P00015000", "bid": 3.7, "bid_size": 75.0, "ask": 5.0, "ask_size": 55.0, "iv": 0.5648, "open_interest": 9.0, "volume": 0.0, "delta": -0.7717, "gamma": 0.0841, "vega": 0.0181, "theta": -0.0046, "rho": -0.0259, "theo": 4.4304, "change": 0.0, "open": 0.0, "high": 0.0, "low": 0.0, "tick": "down", "last_trade_price": 7.05, "last_trade_time": "2026-06-03T14:14:49", "percent_change": 0.0, "prev_day_close": 4.5}, {"option": "ARDT270115C00017500", "bid": 0.0, "bid_size": 0.0, "ask": 0.4, "ask_size": 55.0, "iv": 0.6243, "open_interest": 20.0, "volume": 0.0, "delta": 0.1538, "gamma": 0.0558, "vega": 0.0145, "theta": -0.0042, "rho": 0.0044, "theo": 0.2806, "change": 0.0, "open": 0.0, "high": 0.0, "low": 0.0, "tick": "up", "last_trade_price": 0.35, "last_trade_time": "2026-04-07T09:44:12", "percent_change": 0.0, "prev_day_close": 0.925000011920929}, {"option": "ARDT270115P00017500", "bid": 6.1, "bid_size": 75.0, "ask": 7.6, "ask_size": 55.0, "iv": 0.7341, "open_interest": 0.0, "volume": 0.0, "delta": -0.8523, "gamma": 0.0607, "vega": 0.0136, "theta": -0.0037, "rho": -0.0264, "theo": 6.7792, "change": 0.0, "open": 0.0, "high": 0.0, "low": 0.0, "tick": "up", "last_trade_price": 8.72, "last_trade_time": "2026-02-02T11:39:03", "percent_change": 0.0, "prev_day_close": 6.95000004768372}, {"option": "ARDT270115C00020000", "bid": 0.0, "bid_size": 0.0, "ask": 1.8, "ask_size": 340.0, "iv": 1.167, "open_interest": 8.0, "volume": 0.0, "delta": 0.1115, "gamma": 0.041, "vega": 0.0116, "theta": -0.0037, "rho": 0.0032, "theo": 0.2044, "change": 0.0, "open": 0.0, "high": 0.0, "low": 0.0, "tick": "down", "last_trade_price": 0.12, "last_trade_time": "2026-01-16T15:18:23", "percent_change": 0.0, "prev_day_close": 0.375}, {"option": "ARDT270115P00020000", "bid": 8.6, "bid_size": 75.0, "ask": 10.1, "ask_size": 55.0, "iv": 0.8724, "open_interest": 0.0, "volume": 0.0, "delta": -0.8992, "gamma": 0.0464, "vega": 0.0102, "theta": -0.003, "rho": -0.0246, "theo": 9.1969, "change": 0.0, "open": 0.0, "high": 0.0, "low": 0.0, "tick": "up", "last_trade_price": 10.7, "last_trade_time": "2026-06-12T10:47:02", "percent_change": 0.0, "prev_day_close": 9.45000004768372}, {"option": "ARDT270115C00022500", "bid": 0.0, "bid_size": 0.0, "ask": 1.8, "ask_size": 340.0, "iv": 1.2856, "open_interest": 2.0, "volume": 0.0, "delta": 0.0852, "gamma": 0.0314, "vega": 0.0095, "theta": -0.0032, "rho": 0.0024, "theo": 0.1569, "change": 0.0, "open": 0.0, "high": 0.0, "low": 0.0, "tick": "down", "last_trade_price": 0.41, "last_trade_time": "2025-08-04T14:33:19", "percent_change": 0.0, "prev_day_close": 0.375}, {"option": "ARDT270115P00022500", "bid": 10.4, "bid_size": 40.0, "ask": 13.2, "ask_size": 24.0, "iv": 0.9515, "open_interest": 0.0, "volume": 0.0, "delta": -0.9298, "gamma": 0.037, "vega": 0.0076, "theta": -0.0023, "rho": -0.0219, "theo": 11.6469, "change": 0.0, "open": 0.0, "high": 0.0, "low": 0.0, "tick": "no_change", "last_trade_price": 0.0, "last_trade_time": null, "percent_change": 0.0, "prev_day_close": 11.9499998092651}, {"option": "ARDT270115C00025000", "bid": 0.0, "bid_size": 0.0, "ask": 1.8, "ask_size": 341.0, "iv": 1.3869, "open_interest": 1.0, "volume": 0.0, "delta": 0.0674, "gamma": 0.0249, "vega": 0.008, "theta": -0.0028, "rho": 0.0019, "theo": 0.1247, "change": 0.0, "open": 0.0, "high": 0.0, "low": 0.0, "tick": "down", "last_trade_price": 1.45, "last_trade_time": "2025-05-29T09:30:21", "percent_change": 0.0, "prev_day_close": 0.375}, {"option": "ARDT270115P00025000", "bid": 13.1, "bid_size": 34.0, "ask": 15.5, "ask_size": 24.0, "iv": 1.0526, "open_interest": 0.0, "volume": 0.0, "delta": -0.9519, "gamma": 0.0314, "vega": 0.0057, "theta": -0.0016, "rho": -0.0184, "theo": 14.1151, "change": 0.0, "open": 0.0, "high": 0.0, "low": 0.0, "tick": "up", "last_trade_price": 15.69, "last_trade_time": "2026-06-12T10:46:12", "percent_change": 0.0, "prev_day_close": 14.0499997138977}, {"option": "ARDT270115C00030000", "bid": 0.0, "bid_size": 0.0, "ask": 0.4, "ask_size": 330.0, "iv": 1.0699, "open_interest": 2.0, "volume": 0.0, "delta": 0.0454, "gamma": 0.0168, "vega": 0.0058, "theta": -0.0022, "rho": 0.0013, "theo": 0.0845, "change": 0.0, "open": 0.0, "high": 0.0, "low": 0.0, "tick": "down", "last_trade_price": 0.35, "last_trade_time": "2025-05-27T09:30:02", "percent_change": 0.0, "prev_day_close": 0.375}, {"option": "ARDT270115P00030000", "bid": 18.1, "bid_size": 29.0, "ask": 20.5, "ask_size": 15.0, "iv": 1.2237, "open_interest": 0.0, "volume": 0.0, "delta": -0.9827, "gamma": 0.0241, "vega": 0.0019, "theta": -0.0014, "rho": -0.0082, "theo": 19.0844, "change": 0.0, "open": 0.0, "high": 0.0, "low": 0.0, "tick": "no_change", "last_trade_price": 0.0, "last_trade_time": null, "percent_change": 0.0, "prev_day_close": 19.5500001907349}, {"option": "ARDT270115C00035000", "bid": 0.0, "bid_size": 0.0, "ask": 0.15, "ask_size": 21.0, "iv": 1.0038, "open_interest": 141.0, "volume": 0.0, "delta": 0.0327, "gamma": 0.012, "vega": 0.0044, "theta": -0.0018, "rho": 0.0009, "theo": 0.0609, "change": 0.0, "open": 0.0, "high": 0.0, "low": 0.0, "tick": "no_change", "last_trade_price": 0.05, "last_trade_time": "2026-09-02T11:48:58", "percent_change": 0.0, "prev_day_close": 0.025000000372529}, {"option": "ARDT270115P00035000", "bid": 22.3, "bid_size": 40.0, "ask": 25.9, "ask_size": 20.0, "iv": 1.1024, "open_interest": 0.0, "volume": 0.0, "delta": -0.9969, "gamma": 0.0056, "vega": 0.0, "theta": -0.0004, "rho": 0.0, "theo": 24.08, "change": 0.0, "open": 0.0, "high": 0.0, "low": 0.0, "tick": "no_change", "last_trade_price": 0.0, "last_trade_time": null, "percent_change": 0.0, "prev_day_close": 24.5500001907349}, {"option": "ARDT270219C00002500", "bid": 6.5, "bid_size": 40.0, "ask": 9.0, "ask_size": 14.0, "iv": 0.0, "open_interest": 0.0, "volume": 0.0, "delta": 0.9765, "gamma": 0.0058, "vega": 0.0032, "theta": 0.0, "rho": 0.0044, "theo": 8.4957, "change": 0.0, "open": 0.0, "high": 0.0, "low": 0.0, "tick": "no_change", "last_trade_price": 0.0, "last_trade_time": null, "percent_change": 0.0, "prev_day_close": 8.15000009536743}, {"option": "ARDT270219P00002500", "bid": 0.0, "bid_size": 0.0, "ask": 0.2, "ask_size": 18.0, "iv": 1.437, "open_interest": 0.0, "volume": 0.0, "delta": -0.0214, "gamma": 0.0049, "vega": 0.0036, "theta": -0.0018, "rho": -0.0014, "theo": 0.1205, "change": 0.0, "open": 0.0, "high": 0.0, "low": 0.0, "tick": "no_change", "last_trade_price": 0.0, "last_trade_time": null, "percent_change": 0.0, "prev_day_close": 0.100000001490116}, {"option": "ARDT270219C00005000", "bid": 5.1, "bid_size": 75.0, "ask": 6.6, "ask_size": 15.0, "iv": 0.0, "open_interest": 1.0, "volume": 0.0, "delta": 0.9408, "gamma": 0.018, "vega": 0.0075, "theta": -0.0011, "rho": 0.0108, "theo": 6.0846, "change": 0.0, "open": 0.0, "high": 0.0, "low": 0.0, "tick": "up", "last_trade_price": 6.6, "last_trade_time": "2026-08-26T10:02:27", "percent_change": 0.0, "prev_day_close": 5.75}, {"option": "ARDT270219P00005000", "bid": 0.0, "bid_size": 0.0, "ask": 1.95, "ask_size": 340.0, "iv": 1.6747, "open_interest": 0.0, "volume": 0.0, "delta": -0.0544, "gamma": 0.0166, "vega": 0.0077, "theta": -0.0024, "rho": -0.0031, "theo": 0.1946, "change": 0.0, "open": 0.0, "high": 0.0, "low": 0.0, "tick": "no_change", "last_trade_price": 0.0, "last_trade_time": null, "percent_change": 0.0, "prev_day_close": 0.975000023841858}, {"option": "ARDT270219C00007500", "bid": 2.9, "bid_size": 75.0, "ask": 4.9, "ask_size": 55.0, "iv": 0.7312, "open_interest": 2.0, "volume": 0.0, "delta": 0.8646, "gamma": 0.0479, "vega": 0.0145, "theta": -0.0022, "rho": 0.0179, "theo": 3.7533, "change": 0.0, "open": 0.0, "high": 0.0, "low": 0.0, "tick": "up", "last_trade_price": 4.5, "last_trade_time": "2026-08-10T10:52:26", "percent_change": 0.0, "prev_day_close": 3.39999997615814}, {"option": "ARDT270219P00007500", "bid": 0.0, "bid_size": 0.0, "ask": 0.95, "ask_size": 55.0, "iv": 0.7248, "open_interest": 1.0, "volume": 0.0, "delta": -0.1269, "gamma": 0.0466, "vega": 0.0146, "theta": -0.003, "rho": -0.0066, "theo": 0.3384, "change": 0.0, "open": 0.0, "high": 0.0, "low": 0.0, "tick": "no_change", "last_trade_price": 0.5, "last_trade_time": "2026-07-21T10:18:51", "percent_change": 0.0, "prev_day_close": 0.375}, {"option": "ARDT270219C00010000", "bid": 0.6, "bid_size": 75.0, "ask": 3.5, "ask_size": 75.0, "iv": 0.583, "open_interest": 19.0, "volume": 0.0, "delta": 0.6687, "gamma": 0.1087, "vega": 0.0249, "theta": -0.0034, "rho": 0.0206, "theo": 1.7592, "change": 0.0, "open": 0.0, "high": 0.0, "low": 0.0, "tick": "down", "last_trade_price": 2.17, "last_trade_time": "2026-08-24T09:43:58", "percent_change": 0.0, "prev_day_close": 1.67500002682209}, {"option": "ARDT270219P00010000", "bid": 0.55, "bid_size": 35.0, "ask": 0.95, "ask_size": 48.0, "iv": 0.4426, "open_interest": 0.0, "volume": 0.0, "delta": -0.3207, "gamma": 0.1091, "vega": 0.0249, "theta": -0.0037, "rho": -0.0156, "theo": 0.8102, "change": 0.0, "open": 0.0, "high": 0.0, "low": 0.0, "tick": "no_change", "last_trade_price": 0.0, "last_trade_time": null, "percent_change": 0.0, "prev_day_close": 0.824999988079071}, {"option": "ARDT270219C00012500", "bid": 0.05, "bid_size": 930.0, "ask": 1.25, "ask_size": 55.0, "iv": 0.4301, "open_interest": 87.0, "volume": 0.0, "delta": 0.3933, "gamma": 0.1112, "vega": 0.0267, "theta": -0.0041, "rho": 0.0138, "theo": 0.8006, "change": 0.0, "open": 0.0, "high": 0.0, "low": 0.0, "tick": "down", "last_trade_price": 0.85, "last_trade_time": "2026-08-20T09:30:02", "percent_change": 0.0, "prev_day_close": 0.699999988079071}, {"option": "ARDT270219P00012500", "bid": 1.0, "bid_size": 75.0, "ask": 3.7, "ask_size": 75.0, "iv": 0.4987, "open_interest": 1.0, "volume": 0.0, "delta": -0.6002, "gamma": 0.1144, "vega": 0.0266, "theta": -0.0039, "rho": -0.0278, "theo": 2.3193, "change": 0.0, "open": 0.0, "high": 0.0, "low": 0.0, "tick": "up", "last_trade_price": 2.81, "last_trade_time": "2026-07-21T10:18:51", "percent_change": 0.0, "prev_day_close": 2.60000002384186}, {"option": "ARDT270219C00015000", "bid": 0.0, "bid_size": 0.0, "ask": 0.75, "ask_size": 55.0, "iv": 0.5132, "open_interest": 0.0, "volume": 0.0, "delta": 0.2498, "gamma": 0.0785, "vega": 0.0221, "theta": -0.0041, "rho": 0.0089, "theo": 0.4964, "change": 0.0, "open": 0.0, "high": 0.0, "low": 0.0, "tick": "no_change", "last_trade_price": 0.0, "last_trade_time": null, "percent_change": 0.0, "prev_day_close": 0.375}, {"option": "ARDT270219P00015000", "bid": 3.6, "bid_size": 75.0, "ask": 5.0, "ask_size": 55.0, "iv": 0.4737, "open_interest": 0.0, "volume": 0.0, "delta": -0.7496, "gamma": 0.0832, "vega": 0.0217, "theta": -0.0033, "rho": -0.0332, "theo": 4.4921, "change": 0.0, "open": 0.0, "high": 0.0, "low": 0.0, "tick": "no_change", "last_trade_price": 0.0, "last_trade_time": null, "percent_change": 0.0, "prev_day_close": 4.59999990463257}, {"option": "ARDT270219C00017500", "bid": 0.0, "bid_size": 0.0, "ask": 2.0, "ask_size": 258.0, "iv": 0.9389, "open_interest": 0.0, "volume": 0.0, "delta": 0.1782, "gamma": 0.057, "vega": 0.0182, "theta": -0.0038, "rho": 0.0063, "theo": 0.3584, "change": 0.0, "open": 0.0, "high": 0.0, "low": 0.0, "tick": "no_change", "last_trade_price": 0.0, "last_trade_time": null, "percent_change": 0.0, "prev_day_close": 1.0}, {"option": "ARDT270219P00017500", "bid": 6.1, "bid_size": 75.0, "ask": 7.6, "ask_size": 55.0, "iv": 0.6522, "open_interest": 0.0, "volume": 0.0, "delta": -0.8267, "gamma": 0.0626, "vega": 0.0172, "theta": -0.0025, "rho": -0.0341, "theo": 6.8379, "change": 0.0, "open": 0.0, "high": 0.0, "low": 0.0, "tick": "no_change", "last_trade_price": 0.0, "last_trade_time": null, "percent_change": 0.0, "prev_day_close": 6.94999980926514}, {"option": "ARDT270219C00020000", "bid": 0.0, "bid_size": 0.0, "ask": 0.95, "ask_size": 342.0, "iv": 0.8225, "open_interest": 0.0, "volume": 0.0, "delta": 0.1365, "gamma": 0.0436, "vega": 0.0152, "theta": -0.0035, "rho": 0.0048, "theo": 0.2784, "change": 0.0, "open": 0.0, "high": 0.0, "low": 0.0, "tick": "no_change", "last_trade_price": 0.0, "last_trade_time": null, "percent_change": 0.0, "prev_day_close": 0.975000023841858}, {"option": "ARDT270219P00020000", "bid": 8.6, "bid_size": 75.0, "ask": 10.1, "ask_size": 55.0, "iv": 0.7763, "open_interest": 0.0, "volume": 0.0, "delta": -0.8737, "gamma": 0.0499, "vega": 0.0137, "theta": -0.0017, "rho": -0.0333, "theo": 9.2467, "change": 0.0, "open": 0.0, "high": 0.0, "low": 0.0, "tick": "no_change", "last_trade_price": 0.0, "last_trade_time": null, "percent_change": 0.0, "prev_day_close": 9.44999980926514}, {"option": "ARDT270521C00002500", "bid": 6.7, "bid_size": 40.0, "ask": 9.7, "ask_size": 24.0, "iv": 0.0, "open_interest": 0.0, "volume": 0.0, "delta": 0.9595, "gamma": 0.0069, "vega": 0.0062, "theta": -0.0012, "rho": 0.0066, "theo": 8.6225, "change": 0.0, "open": 0.0, "high": 0.0, "low": 0.0, "tick": "no_change", "last_trade_price": 0.0, "last_trade_time": null, "percent_change": 0.0, "prev_day_close": 8.0499997138977}, {"option": "ARDT270521P00002500", "bid": 0.0, "bid_size": 0.0, "ask": 0.2, "ask_size": 20.0, "iv": 1.135, "open_interest": 0.0, "volume": 0.0, "delta": -0.0339, "gamma": 0.0056, "vega": 0.0067, "theta": -0.0021, "rho": -0.0042, "theo": 0.3119, "change": 0.0, "open": 0.0, "high": 0.0, "low": 0.0, "tick": "no_change", "last_trade_price": 0.0, "last_trade_time": null, "percent_change": 0.0, "prev_day_close": 0.100000001490116}, {"option": "ARDT270521C00005000", "bid": 5.2, "bid_size": 75.0, "ask": 6.7, "ask_size": 17.0, "iv": 0.6149, "open_interest": 0.0, "volume": 0.0, "delta": 0.9102, "gamma": 0.0194, "vega": 0.0127, "theta": -0.0019, "rho": 0.0152, "theo": 6.2721, "change": 0.0, "open": 0.0, "high": 0.0, "low": 0.0, "tick": "no_change", "last_trade_price": 0.0, "last_trade_time": null, "percent_change": 0.0, "prev_day_close": 5.75}, {"option": "ARDT270521P00005000", "bid": 0.0, "bid_size": 0.0, "ask": 2.15, "ask_size": 340.0, "iv": 1.3898, "open_interest": 0.0, "volume": 0.0, "delta": -0.0797, "gamma": 0.0173, "vega": 0.0131, "theta": -0.0025, "rho": -0.008, "theo": 0.4412, "change": 0.0, "open": 0.0, "high": 0.0, "low": 0.0, "tick": "no_change", "last_trade_price": 0.0, "last_trade_time": null, "percent_change": 0.0, "prev_day_close": 1.07500004768372}, {"option": "ARDT270521C00007500", "bid": 3.1, "bid_size": 75.0, "ask": 5.1, "ask_size": 55.0, "iv": 0.6952, "open_interest": 0.0, "volume": 0.0, "delta": 0.8249, "gamma": 0.0443, "vega": 0.0213, "theta": -0.0024, "rho": 0.0239, "theo": 4.0018, "change": 0.0, "open": 0.0, "high": 0.0, "low": 0.0, "tick": "no_change", "last_trade_price": 0.0, "last_trade_time": null, "percent_change": 0.0, "prev_day_close": 4.04999995231628}, {"option": "ARDT270521P00007500", "bid": 0.0, "bid_size": 0.0, "ask": 2.4, "ask_size": 258.0, "iv": 0.8985, "open_interest": 0.0, "volume": 0.0, "delta": -0.1603, "gamma": 0.0419, "vega": 0.0215, "theta": -0.0028, "rho": -0.0143, "theo": 0.6365, "change": 0.0, "open": 0.0, "high": 0.0, "low": 0.0, "tick": "no_change", "last_trade_price": 0.0, "last_trade_time": null, "percent_change": 0.0, "prev_day_close": 1.20000004768372}, {"option": "ARDT270521C00010000", "bid": 1.55, "bid_size": 64.0, "ask": 3.0, "ask_size": 21.0, "iv": 0.5431, "open_interest": 0.0, "volume": 0.0, "delta": 0.6519, "gamma": 0.084, "vega": 0.0316, "theta": -0.0029, "rho": 0.0276, "theo": 2.096, "change": 0.0, "open": 0.0, "high": 0.0, "low": 0.0, "tick": "no_change", "last_trade_price": 0.0, "last_trade_time": null, "percent_change": 0.0, "prev_day_close": 2.29999998211861}, {"option": "ARDT270521P00010000", "bid": 0.65, "bid_size": 10.0, "ask": 3.2, "ask_size": 75.0, "iv": 0.7213, "open_interest": 0.0, "volume": 0.0, "delta": -0.3286, "gamma": 0.083, "vega": 0.0316, "theta": -0.0031, "rho": -0.0271, "theo": 1.1844, "change": 0.0, "open": 0.0, "high": 0.0, "low": 0.0, "tick": "no_change", "last_trade_price": 0.0, "last_trade_time": null, "percent_change": 0.0, "prev_day_close": 1.6999999769032}, {"option": "ARDT270521C00012500", "bid": 0.55, "bid_size": 55.0, "ask": 1.75, "ask_size": 55.0, "iv": 0.4938, "open_interest": 0.0, "volume": 0.0, "delta": 0.4436, "gamma": 0.0864, "vega": 0.0343, "theta": -0.0034, "rho": 0.0217, "theo": 1.1896, "change": 0.0, "open": 0.0, "high": 0.0, "low": 0.0, "tick": "no_change", "last_trade_price": 0.0, "last_trade_time": null, "percent_change": 0.0, "prev_day_close": 0.950000012293458}, {"option": "ARDT270521P00012500", "bid": 1.2, "bid_size": 75.0, "ask": 3.4, "ask_size": 55.0, "iv": 0.3791, "open_interest": 0.0, "volume": 0.0, "delta": -0.5383, "gamma": 0.0886, "vega": 0.0343, "theta": -0.0033, "rho": -0.0432, "theo": 2.7269, "change": 0.0, "open": 0.0, "high": 0.0, "low": 0.0, "tick": "no_change", "last_trade_price": 0.0, "last_trade_time": null, "percent_change": 0.0, "prev_day_close": 3.09999990463257}, {"option": "ARDT270521C00015000", "bid": 0.0, "bid_size": 0.0, "ask": 1.85, "ask_size": 55.0, "iv": 0.5983, "open_interest": 0.0, "volume": 0.0, "delta": 0.3286, "gamma": 0.0685, "vega": 0.0316, "theta": -0.0037, "rho": 0.0165, "theo": 0.88, "change": 0.0, "open": 0.0, "high": 0.0, "low": 0.0, "tick": "no_change", "last_trade_price": 0.0, "last_trade_time": null, "percent_change": 0.0, "prev_day_close": 0.700000002980232}, {"option": "ARDT270521P00015000", "bid": 3.8, "bid_size": 75.0, "ask": 5.8, "ask_size": 55.0, "iv": 0.5605, "open_interest": 0.0, "volume": 0.0, "delta": -0.6584, "gamma": 0.0725, "vega": 0.0314, "theta": -0.0033, "rho": -0.0533, "theo": 4.8728, "change": 0.0, "open": 0.0, "high": 0.0, "low": 0.0, "tick": "no_change", "last_trade_price": 0.0, "last_trade_time": null, "percent_change": 0.0, "prev_day_close": 4.59999990463257}, {"option": "ARDT270521C00017500", "bid": 0.0, "bid_size": 0.0, "ask": 2.4, "ask_size": 248.0, "iv": 0.8111, "open_interest": 0.0, "volume": 0.0, "delta": 0.2649, "gamma": 0.0553, "vega": 0.0287, "theta": -0.0038, "rho": 0.0133, "theo": 0.7253, "change": 0.0, "open": 0.0, "high": 0.0, "low": 0.0, "tick": "no_change", "last_trade_price": 0.0, "last_trade_time": null, "percent_change": 0.0, "prev_day_close": 1.17499995231628}, {"option": "ARDT270521P00017500", "bid": 6.1, "bid_size": 75.0, "ask": 7.6, "ask_size": 55.0, "iv": 0.5234, "open_interest": 0.0, "volume": 0.0, "delta": -0.7276, "gamma": 0.0605, "vega": 0.028, "theta": -0.0031, "rho": -0.0587, "theo": 7.1811, "change": 0.0, "open": 0.0, "high": 0.0, "low": 0.0, "tick": "no_change", "last_trade_price": 0.0, "last_trade_time": null, "percent_change": 0.0, "prev_day_close": 7.05000019073486}, {"option": "ARDT270521C00020000", "bid": 0.0, "bid_size": 0.0, "ask": 0.95, "ask_size": 55.0, "iv": 0.6539, "open_interest": 0.0, "volume": 0.0, "delta": 0.2242, "gamma": 0.0464, "vega": 0.0262, "theta": -0.0038, "rho": 0.0112, "theo": 0.6265, "change": 0.0, "open": 0.0, "high": 0.0, "low": 0.0, "tick": "no_change", "last_trade_price": 0.0, "last_trade_time": null, "percent_change": 0.0, "prev_day_close": 1.125}, {"option": "ARDT270521P00020000", "bid": 7.9, "bid_size": 75.0, "ask": 11.2, "ask_size": 55.0, "iv": 0.7144, "open_interest": 0.0, "volume": 0.0, "delta": -0.774, "gamma": 0.0524, "vega": 0.0251, "theta": -0.0029, "rho": -0.0616, "theo": 9.5512, "change": 0.0, "open": 0.0, "high": 0.0, "low": 0.0, "tick": "no_change", "last_trade_price": 0.0, "last_trade_time": null, "percent_change": 0.0, "prev_day_close": 9.45000004768372}], "symbol": "ARDT", "security_type": "stock", "exchange_id": 3, "current_price": 10.95, "price_change": 0.34, "price_change_percent": 3.2045, "bid": 10.83, "ask": 11.5, "bid_size": 200, "ask_size": 1400, "open": 10.7, "high": 11.03, "low": 10.68, "close": 10.95, "prev_day_close": 10.61, "volume": 504168, "iv30": 55.76, "iv30_change": 0.438, "iv30_change_percent": 0.7917, "seqno": 17335646747, "last_trade_time": "2026-09-22T15:59:59", "tick": "up"}, "symbol": "ARDT"}