{"timestamp": "2026-11-03 05:28:00", "data": {"options": [{"option": "STEM261120C00002500", "bid": 0.05, "bid_size": 31.0, "ask": 0.35, "ask_size": 15.0, "iv": 1.4147, "open_interest": 0.0, "volume": 5.0, "delta": 0.4221, "gamma": 0.6275, "vega": 0.002, "theta": -0.0068, "rho": 0.0004, "theo": 0.1636, "change": -0.025, "open": 0.35, "high": 0.35, "low": 0.35, "tick": "down", "last_trade_price": 0.35, "last_trade_time": "2026-11-02T09:48:14", "percent_change": -6.66667, "prev_day_close": 0.199999997392297}, {"option": "STEM261120P00002500", "bid": 0.0, "bid_size": 0.0, "ask": 0.75, "ask_size": 108.0, "iv": 1.1767, "open_interest": 43.0, "volume": 0.0, "delta": -0.5812, "gamma": 0.6309, "vega": 0.002, "theta": -0.0068, "rho": -0.0007, "theo": 0.3858, "change": 0.0, "open": 0.0, "high": 0.0, "low": 0.0, "tick": "down", "last_trade_price": 0.1, "last_trade_time": "2026-10-27T09:38:15", "percent_change": 0.0, "prev_day_close": 0.375}, {"option": "STEM261120C00005000", "bid": 0.0, "bid_size": 0.0, "ask": 0.05, "ask_size": 13.0, "iv": 2.0404, "open_interest": 100.0, "volume": 0.0, "delta": 0.0681, "gamma": 0.1262, "vega": 0.0006, "theta": -0.0036, "rho": 0.0001, "theo": 0.0253, "change": 0.0, "open": 0.0, "high": 0.0, "low": 0.0, "tick": "down", "last_trade_price": 0.01, "last_trade_time": "2026-10-30T10:28:13", "percent_change": 0.0, "prev_day_close": 0.025000000372529}, {"option": "STEM261120P00005000", "bid": 2.45, "bid_size": 106.0, "ask": 3.1, "ask_size": 61.0, "iv": 2.401, "open_interest": 40.0, "volume": 0.0, "delta": -0.938, "gamma": 0.131, "vega": 0.0006, "theta": -0.0034, "rho": -0.0011, "theo": 2.7474, "change": 0.0, "open": 0.0, "high": 0.0, "low": 0.0, "tick": "down", "last_trade_price": 2.45, "last_trade_time": "2026-10-29T11:20:37", "percent_change": 0.0, "prev_day_close": 2.77499997615814}, {"option": "STEM261120C00007500", "bid": 0.0, "bid_size": 0.0, "ask": 0.1, "ask_size": 12.0, "iv": 3.1533, "open_interest": 28.0, "volume": 0.0, "delta": 0.0284, "gamma": 0.0519, "vega": 0.0003, "theta": -0.0021, "rho": 0.0, "theo": 0.0107, "change": 0.0, "open": 0.0, "high": 0.0, "low": 0.0, "tick": "down", "last_trade_price": 0.02, "last_trade_time": "2026-10-15T09:51:18", "percent_change": 0.0, "prev_day_close": 0.0500000007450581}, {"option": "STEM261120P00007500", "bid": 4.6, "bid_size": 81.0, "ask": 5.8, "ask_size": 61.0, "iv": 0.0, "open_interest": 0.0, "volume": 0.0, "delta": -0.9801, "gamma": 0.0588, "vega": 0.0002, "theta": -0.0015, "rho": -0.0009, "theo": 5.2336, "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": 5.20000004768372}, {"option": "STEM261218C00002500", "bid": 0.1, "bid_size": 702.0, "ask": 0.4, "ask_size": 95.0, "iv": 1.0257, "open_interest": 40.0, "volume": 1.0, "delta": 0.4932, "gamma": 0.4464, "vega": 0.0032, "theta": -0.0038, "rho": 0.0011, "theo": 0.2761, "change": 0.025, "open": 0.4, "high": 0.4, "low": 0.4, "tick": "down", "last_trade_price": 0.4, "last_trade_time": "2026-11-02T13:44:51", "percent_change": 6.66667, "prev_day_close": 0.25000000372529}, {"option": "STEM261218P00002500", "bid": 0.1, "bid_size": 1197.0, "ask": 0.85, "ask_size": 500.0, "iv": 1.0714, "open_interest": 213.0, "volume": 0.0, "delta": -0.5134, "gamma": 0.4513, "vega": 0.0032, "theta": -0.0038, "rho": -0.0017, "theo": 0.4863, "change": 0.0, "open": 0.0, "high": 0.0, "low": 0.0, "tick": "up", "last_trade_price": 0.5, "last_trade_time": "2026-10-30T10:45:19", "percent_change": 0.0, "prev_day_close": 0.475000012665987}, {"option": "STEM261218C00005000", "bid": 0.0, "bid_size": 0.0, "ask": 0.75, "ask_size": 2.0, "iv": 1.2698, "open_interest": 35.0, "volume": 0.0, "delta": 0.1225, "gamma": 0.1642, "vega": 0.0016, "theta": -0.0026, "rho": 0.0003, "theo": 0.0583, "change": 0.0, "open": 0.0, "high": 0.0, "low": 0.0, "tick": "down", "last_trade_price": 0.04, "last_trade_time": "2026-10-29T15:59:54", "percent_change": 0.0, "prev_day_close": 0.025000000372529}, {"option": "STEM261218P00005000", "bid": 2.4, "bid_size": 222.0, "ask": 3.0, "ask_size": 127.0, "iv": 0.0, "open_interest": 112.0, "volume": 10.0, "delta": -0.8912, "gamma": 0.1736, "vega": 0.0015, "theta": -0.0023, "rho": -0.0027, "theo": 2.7671, "change": -0.11, "open": 2.64, "high": 2.64, "low": 2.64, "tick": "up", "last_trade_price": 2.64, "last_trade_time": "2026-11-02T13:59:50", "percent_change": -4.0, "prev_day_close": 2.70000004768372}, {"option": "STEM261218C00007500", "bid": 0.0, "bid_size": 0.0, "ask": 0.3, "ask_size": 786.0, "iv": 2.5299, "open_interest": 62.0, "volume": 0.0, "delta": 0.0563, "gamma": 0.0795, "vega": 0.0009, "theta": -0.0017, "rho": 0.0001, "theo": 0.0261, "change": 0.0, "open": 0.0, "high": 0.0, "low": 0.0, "tick": "no_change", "last_trade_price": 0.05, "last_trade_time": "2026-10-23T10:22:41", "percent_change": 0.0, "prev_day_close": 0.150000005960464}, {"option": "STEM261218P00007500", "bid": 4.6, "bid_size": 80.0, "ask": 5.8, "ask_size": 60.0, "iv": 0.0, "open_interest": 7.0, "volume": 0.0, "delta": -0.9633, "gamma": 0.0914, "vega": 0.0006, "theta": -0.0011, "rho": -0.0021, "theo": 5.237, "change": 0.0, "open": 0.0, "high": 0.0, "low": 0.0, "tick": "up", "last_trade_price": 4.95, "last_trade_time": "2026-10-28T14:20:28", "percent_change": 0.0, "prev_day_close": 5.20000004768372}, {"option": "STEM261218C00010000", "bid": 0.0, "bid_size": 0.0, "ask": 0.25, "ask_size": 296.0, "iv": 2.7674, "open_interest": 28.0, "volume": 0.0, "delta": 0.0328, "gamma": 0.0473, "vega": 0.0006, "theta": -0.0012, "rho": 0.0001, "theo": 0.015, "change": 0.0, "open": 0.0, "high": 0.0, "low": 0.0, "tick": "up", "last_trade_price": 0.13, "last_trade_time": "2026-10-26T11:03:55", "percent_change": 0.0, "prev_day_close": 0.125}, {"option": "STEM261218P00010000", "bid": 7.1, "bid_size": 84.0, "ask": 8.3, "ask_size": 61.0, "iv": 0.0, "open_interest": 0.0, "volume": 0.0, "delta": -0.9914, "gamma": 0.0594, "vega": 0.0001, "theta": 0.0, "rho": 0.0, "theo": 7.73, "change": 0.0, "open": 0.0, "high": 0.0, "low": 0.0, "tick": "no_change", "last_trade_price": 6.41, "last_trade_time": "2026-10-16T10:41:47", "percent_change": 0.0, "prev_day_close": 7.70000004768372}, {"option": "STEM261218C00012500", "bid": 0.0, "bid_size": 0.0, "ask": 0.75, "ask_size": 916.0, "iv": 4.048, "open_interest": 70.0, "volume": 0.0, "delta": 0.0216, "gamma": 0.0315, "vega": 0.0004, "theta": -0.0009, "rho": 0.0, "theo": 0.0097, "change": 0.0, "open": 0.0, "high": 0.0, "low": 0.0, "tick": "up", "last_trade_price": 0.38, "last_trade_time": "2026-10-13T10:55:40", "percent_change": 0.0, "prev_day_close": 0.375}, {"option": "STEM261218P00012500", "bid": 9.6, "bid_size": 80.0, "ask": 10.8, "ask_size": 60.0, "iv": 0.0, "open_interest": 1.0, "volume": 0.0, "delta": -1.0, "gamma": 0.0, "vega": 0.0, "theta": -0.0006, "rho": 0.0, "theo": 10.23, "change": 0.0, "open": 0.0, "high": 0.0, "low": 0.0, "tick": "up", "last_trade_price": 9.95, "last_trade_time": "2026-10-28T14:21:40", "percent_change": 0.0, "prev_day_close": 10.2000002861023}, {"option": "STEM261218C00015000", "bid": 0.0, "bid_size": 0.0, "ask": 0.75, "ask_size": 942.0, "iv": 4.2694, "open_interest": 116.0, "volume": 0.0, "delta": 0.0153, "gamma": 0.0226, "vega": 0.0003, "theta": -0.0007, "rho": 0.0, "theo": 0.0068, "change": 0.0, "open": 0.0, "high": 0.0, "low": 0.0, "tick": "down", "last_trade_price": 0.13, "last_trade_time": "2026-10-26T11:03:55", "percent_change": 0.0, "prev_day_close": 0.375}, {"option": "STEM261218P00015000", "bid": 12.1, "bid_size": 84.0, "ask": 13.3, "ask_size": 61.0, "iv": 0.0, "open_interest": 0.0, "volume": 0.0, "delta": -1.0, "gamma": 0.0, "vega": 0.0, "theta": -0.0006, "rho": 0.0, "theo": 12.73, "change": 0.0, "open": 0.0, "high": 0.0, "low": 0.0, "tick": "no_change", "last_trade_price": 12.5, "last_trade_time": "2026-10-28T14:22:34", "percent_change": 0.0, "prev_day_close": 12.7000002861023}, {"option": "STEM261218C00017500", "bid": 0.0, "bid_size": 0.0, "ask": 0.2, "ask_size": 372.0, "iv": 3.2527, "open_interest": 301.0, "volume": 0.0, "delta": 0.0114, "gamma": 0.017, "vega": 0.0002, "theta": -0.0005, "rho": 0.0, "theo": 0.0051, "change": 0.0, "open": 0.0, "high": 0.0, "low": 0.0, "tick": "no_change", "last_trade_price": 0.05, "last_trade_time": "2026-10-07T10:20:02", "percent_change": 0.0, "prev_day_close": 0.100000001490116}, {"option": "STEM261218P00017500", "bid": 14.6, "bid_size": 76.0, "ask": 15.8, "ask_size": 56.0, "iv": 0.0, "open_interest": 0.0, "volume": 0.0, "delta": -1.0, "gamma": 0.0, "vega": 0.0, "theta": -0.0006, "rho": 0.0, "theo": 15.23, "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": 15.2000002861023}, {"option": "STEM261218C00020000", "bid": 0.0, "bid_size": 0.0, "ask": 0.05, "ask_size": 6.0, "iv": 2.7209, "open_interest": 80.0, "volume": 0.0, "delta": 0.0088, "gamma": 0.0132, "vega": 0.0002, "theta": -0.0004, "rho": 0.0, "theo": 0.0039, "change": 0.0, "open": 0.0, "high": 0.0, "low": 0.0, "tick": "down", "last_trade_price": 0.05, "last_trade_time": "2026-08-31T11:15:57", "percent_change": 0.0, "prev_day_close": 0.025000000372529}, {"option": "STEM261218P00020000", "bid": 17.1, "bid_size": 76.0, "ask": 18.3, "ask_size": 56.0, "iv": 0.0, "open_interest": 0.0, "volume": 0.0, "delta": -1.0, "gamma": 0.0, "vega": 0.0, "theta": -0.0006, "rho": 0.0, "theo": 17.73, "change": 0.0, "open": 0.0, "high": 0.0, "low": 0.0, "tick": "no_change", "last_trade_price": 17.45, "last_trade_time": "2026-10-28T14:24:02", "percent_change": 0.0, "prev_day_close": 17.6999998092651}, {"option": "STEM261218C00022500", "bid": 0.0, "bid_size": 0.0, "ask": 0.75, "ask_size": 945.0, "iv": 4.735, "open_interest": 12.0, "volume": 0.0, "delta": 0.007, "gamma": 0.0106, "vega": 0.0001, "theta": -0.0004, "rho": 0.0, "theo": 0.0031, "change": 0.0, "open": 0.0, "high": 0.0, "low": 0.0, "tick": "up", "last_trade_price": 0.9, "last_trade_time": "2026-06-18T09:47:37", "percent_change": 0.0, "prev_day_close": 0.375}, {"option": "STEM261218P00022500", "bid": 19.6, "bid_size": 76.0, "ask": 20.8, "ask_size": 56.0, "iv": 0.0, "open_interest": 0.0, "volume": 0.0, "delta": -1.0, "gamma": 0.0, "vega": 0.0, "theta": -0.0006, "rho": 0.0, "theo": 20.23, "change": 0.0, "open": 0.0, "high": 0.0, "low": 0.0, "tick": "up", "last_trade_price": 17.24, "last_trade_time": "2026-08-10T13:02:28", "percent_change": 0.0, "prev_day_close": 20.1999998092651}, {"option": "STEM261218C00025000", "bid": 0.0, "bid_size": 0.0, "ask": 0.75, "ask_size": 934.0, "iv": 4.8509, "open_interest": 78.0, "volume": 0.0, "delta": 0.0057, "gamma": 0.0087, "vega": 0.0001, "theta": -0.0003, "rho": 0.0, "theo": 0.0025, "change": 0.0, "open": 0.0, "high": 0.0, "low": 0.0, "tick": "no_change", "last_trade_price": 0.1, "last_trade_time": "2026-08-03T10:35:53", "percent_change": 0.0, "prev_day_close": 0.375}, {"option": "STEM261218P00025000", "bid": 22.1, "bid_size": 76.0, "ask": 23.3, "ask_size": 56.0, "iv": 0.0, "open_interest": 0.0, "volume": 0.0, "delta": -1.0, "gamma": 0.0, "vega": 0.0, "theta": -0.0006, "rho": 0.0, "theo": 22.73, "change": 0.0, "open": 0.0, "high": 0.0, "low": 0.0, "tick": "up", "last_trade_price": 19.75, "last_trade_time": "2026-08-10T13:03:11", "percent_change": 0.0, "prev_day_close": 22.6999998092651}, {"option": "STEM261218C00030000", "bid": 0.0, "bid_size": 0.0, "ask": 0.75, "ask_size": 811.0, "iv": 5.0469, "open_interest": 16.0, "volume": 0.0, "delta": 0.004, "gamma": 0.0061, "vega": 0.0001, "theta": -0.0002, "rho": 0.0, "theo": 0.0017, "change": 0.0, "open": 0.0, "high": 0.0, "low": 0.0, "tick": "no_change", "last_trade_price": 0.05, "last_trade_time": "2026-09-16T10:04:06", "percent_change": 0.0, "prev_day_close": 0.375}, {"option": "STEM261218P00030000", "bid": 27.1, "bid_size": 41.0, "ask": 28.3, "ask_size": 21.0, "iv": 0.0, "open_interest": 0.0, "volume": 0.0, "delta": -1.0, "gamma": 0.0, "vega": 0.0, "theta": -0.0006, "rho": 0.0, "theo": 27.73, "change": 0.0, "open": 0.0, "high": 0.0, "low": 0.0, "tick": "up", "last_trade_price": 24.75, "last_trade_time": "2026-08-10T13:04:01", "percent_change": 0.0, "prev_day_close": 27.6999998092651}, {"option": "STEM261218C00035000", "bid": 0.0, "bid_size": 0.0, "ask": 0.75, "ask_size": 366.0, "iv": 3.226, "open_interest": 117.0, "volume": 4.0, "delta": 0.0029, "gamma": 0.0045, "vega": 0.0001, "theta": -0.0002, "rho": 0.0, "theo": 0.0013, "change": 0.015, "open": 0.04, "high": 0.04, "low": 0.04, "tick": "down", "last_trade_price": 0.04, "last_trade_time": "2026-11-02T13:59:42", "percent_change": 60.0, "prev_day_close": 0.025000000372529}, {"option": "STEM261218P00035000", "bid": 32.1, "bid_size": 41.0, "ask": 33.3, "ask_size": 21.0, "iv": 0.0, "open_interest": 0.0, "volume": 0.0, "delta": -1.0, "gamma": 0.0, "vega": 0.0, "theta": -0.0006, "rho": 0.0, "theo": 32.73, "change": 0.0, "open": 0.0, "high": 0.0, "low": 0.0, "tick": "up", "last_trade_price": 29.7, "last_trade_time": "2026-08-10T13:13:09", "percent_change": 0.0, "prev_day_close": 32.6999988555908}, {"option": "STEM270115C00002500", "bid": 0.05, "bid_size": 2355.0, "ask": 0.75, "ask_size": 287.0, "iv": 1.1491, "open_interest": 16.0, "volume": 0.0, "delta": 0.5182, "gamma": 0.4171, "vega": 0.0041, "theta": -0.0026, "rho": 0.0018, "theo": 0.3139, "change": 0.0, "open": 0.0, "high": 0.0, "low": 0.0, "tick": "up", "last_trade_price": 0.52, "last_trade_time": "2026-10-27T15:28:08", "percent_change": 0.0, "prev_day_close": 0.400000000372529}, {"option": "STEM270115P00002500", "bid": 0.15, "bid_size": 1033.0, "ask": 0.9, "ask_size": 297.0, "iv": 0.9927, "open_interest": 10.0, "volume": 0.0, "delta": -0.498, "gamma": 0.4266, "vega": 0.0041, "theta": -0.0026, "rho": -0.0026, "theo": 0.5032, "change": 0.0, "open": 0.0, "high": 0.0, "low": 0.0, "tick": "no_change", "last_trade_price": 0.55, "last_trade_time": "2026-10-30T09:36:39", "percent_change": 0.0, "prev_day_close": 0.524999991059303}, {"option": "STEM270115C00005000", "bid": 0.0, "bid_size": 0.0, "ask": 0.05, "ask_size": 1.0, "iv": 0.9904, "open_interest": 128.0, "volume": 0.0, "delta": 0.1781, "gamma": 0.1851, "vega": 0.0027, "theta": -0.0024, "rho": 0.0006, "theo": 0.1016, "change": 0.0, "open": 0.0, "high": 0.0, "low": 0.0, "tick": "down", "last_trade_price": 0.1, "last_trade_time": "2026-10-28T10:06:20", "percent_change": 0.0, "prev_day_close": 0.025000000372529}, {"option": "STEM270115P00005000", "bid": 2.2, "bid_size": 245.0, "ask": 3.1, "ask_size": 186.0, "iv": 0.0, "open_interest": 55.0, "volume": 0.0, "delta": -0.8478, "gamma": 0.1982, "vega": 0.0024, "theta": -0.0023, "rho": -0.0044, "theo": 2.7893, "change": 0.0, "open": 0.0, "high": 0.0, "low": 0.0, "tick": "up", "last_trade_price": 2.5, "last_trade_time": "2026-10-28T14:22:44", "percent_change": 0.0, "prev_day_close": 2.64999997615814}, {"option": "STEM270115C00007500", "bid": 0.0, "bid_size": 0.0, "ask": 0.75, "ask_size": 1018.0, "iv": 2.6456, "open_interest": 114.0, "volume": 0.0, "delta": 0.1049, "gamma": 0.1101, "vega": 0.0018, "theta": -0.002, "rho": 0.0004, "theo": 0.0604, "change": 0.0, "open": 0.0, "high": 0.0, "low": 0.0, "tick": "no_change", "last_trade_price": 0.05, "last_trade_time": "2026-10-28T15:04:47", "percent_change": 0.0, "prev_day_close": 0.375}, {"option": "STEM270115P00007500", "bid": 4.6, "bid_size": 113.0, "ask": 5.7, "ask_size": 175.0, "iv": 0.0, "open_interest": 32.0, "volume": 0.0, "delta": -0.928, "gamma": 0.1283, "vega": 0.0014, "theta": -0.0017, "rho": -0.0042, "theo": 5.2492, "change": 0.0, "open": 0.0, "high": 0.0, "low": 0.0, "tick": "up", "last_trade_price": 5.1, "last_trade_time": "2026-10-29T15:58:49", "percent_change": 0.0, "prev_day_close": 5.14999985694885}, {"option": "STEM270115C00010000", "bid": 0.0, "bid_size": 0.0, "ask": 0.75, "ask_size": 2.0, "iv": 1.5995, "open_interest": 87.0, "volume": 2.0, "delta": 0.0736, "gamma": 0.0772, "vega": 0.0014, "theta": -0.0016, "rho": 0.0002, "theo": 0.0425, "change": -0.015, "open": 0.01, "high": 0.01, "low": 0.01, "tick": "no_change", "last_trade_price": 0.01, "last_trade_time": "2026-11-02T12:52:05", "percent_change": -60.0, "prev_day_close": 0.025000000372529}, {"option": "STEM270115P00010000", "bid": 7.1, "bid_size": 84.0, "ask": 8.3, "ask_size": 151.0, "iv": 0.0, "open_interest": 0.0, "volume": 0.0, "delta": -0.9668, "gamma": 0.0994, "vega": 0.0006, "theta": -0.0015, "rho": -0.0026, "theo": 7.7348, "change": 0.0, "open": 0.0, "high": 0.0, "low": 0.0, "tick": "up", "last_trade_price": 4.93, "last_trade_time": "2026-08-12T13:16:05", "percent_change": 0.0, "prev_day_close": 7.70000004768372}, {"option": "STEM270115C00012500", "bid": 0.0, "bid_size": 0.0, "ask": 0.75, "ask_size": 1014.0, "iv": 3.1757, "open_interest": 8.0, "volume": 0.0, "delta": 0.0562, "gamma": 0.059, "vega": 0.0011, "theta": -0.0014, "rho": 0.0002, "theo": 0.0326, "change": 0.0, "open": 0.0, "high": 0.0, "low": 0.0, "tick": "down", "last_trade_price": 0.5, "last_trade_time": "2026-09-24T10:53:58", "percent_change": 0.0, "prev_day_close": 0.375}, {"option": "STEM270115P00012500", "bid": 9.6, "bid_size": 84.0, "ask": 10.8, "ask_size": 151.0, "iv": 0.0, "open_interest": 0.0, "volume": 0.0, "delta": -0.9879, "gamma": 0.0663, "vega": 0.0, "theta": -0.0005, "rho": 0.0, "theo": 10.23, "change": 0.0, "open": 0.0, "high": 0.0, "low": 0.0, "tick": "up", "last_trade_price": 6.37, "last_trade_time": "2026-06-09T13:58:27", "percent_change": 0.0, "prev_day_close": 10.2000002861023}, {"option": "STEM270115C00015000", "bid": 0.0, "bid_size": 0.0, "ask": 0.75, "ask_size": 968.0, "iv": 3.3506, "open_interest": 1.0, "volume": 0.0, "delta": 0.0452, "gamma": 0.0474, "vega": 0.001, "theta": -0.0012, "rho": 0.0001, "theo": 0.0262, "change": 0.0, "open": 0.0, "high": 0.0, "low": 0.0, "tick": "up", "last_trade_price": 1.43, "last_trade_time": "2026-07-01T12:04:17", "percent_change": 0.0, "prev_day_close": 0.375}, {"option": "STEM270115P00015000", "bid": 12.1, "bid_size": 84.0, "ask": 13.2, "ask_size": 147.0, "iv": 0.0, "open_interest": 0.0, "volume": 0.0, "delta": -0.9976, "gamma": 0.0127, "vega": 0.0, "theta": -0.0005, "rho": 0.0, "theo": 12.73, "change": 0.0, "open": 0.0, "high": 0.0, "low": 0.0, "tick": "up", "last_trade_price": 9.5, "last_trade_time": "2026-08-04T13:03:37", "percent_change": 0.0, "prev_day_close": 12.6500000953674}, {"option": "STEM270115C00017500", "bid": 0.0, "bid_size": 0.0, "ask": 0.75, "ask_size": 2.0, "iv": 2.037, "open_interest": 4.0, "volume": 0.0, "delta": 0.0377, "gamma": 0.0395, "vega": 0.0008, "theta": -0.0011, "rho": 0.0001, "theo": 0.0219, "change": 0.0, "open": 0.0, "high": 0.0, "low": 0.0, "tick": "no_change", "last_trade_price": 0.05, "last_trade_time": "2026-10-20T14:50:07", "percent_change": 0.0, "prev_day_close": 0.025000000372529}, {"option": "STEM270115P00017500", "bid": 14.6, "bid_size": 68.0, "ask": 15.7, "ask_size": 139.0, "iv": 0.0, "open_interest": 0.0, "volume": 0.0, "delta": -1.0, "gamma": 0.0, "vega": 0.0, "theta": -0.0005, "rho": 0.0, "theo": 15.23, "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": 15.1500000953674}, {"option": "STEM270416C00002500", "bid": 0.4, "bid_size": 22.0, "ask": 0.75, "ask_size": 392.0, "iv": 0.9778, "open_interest": 13.0, "volume": 5.0, "delta": 0.6175, "gamma": 0.2969, "vega": 0.0062, "theta": -0.0016, "rho": 0.004, "theo": 0.5176, "change": 0.15, "open": 0.7, "high": 0.7, "low": 0.7, "tick": "no_change", "last_trade_price": 0.7, "last_trade_time": "2026-11-02T13:15:21", "percent_change": 27.2727, "prev_day_close": 0.575000002980232}, {"option": "STEM270416P00002500", "bid": 0.25, "bid_size": 332.0, "ask": 1.45, "ask_size": 633.0, "iv": 1.2666, "open_interest": 2.0, "volume": 0.0, "delta": -0.4348, "gamma": 0.3132, "vega": 0.0061, "theta": -0.0017, "rho": -0.0052, "theo": 0.6214, "change": 0.0, "open": 0.0, "high": 0.0, "low": 0.0, "tick": "no_change", "last_trade_price": 0.57, "last_trade_time": "2026-10-22T12:24:13", "percent_change": 0.0, "prev_day_close": 0.850000023841858}, {"option": "STEM270416C00005000", "bid": 0.0, "bid_size": 0.0, "ask": 0.45, "ask_size": 656.0, "iv": 1.138, "open_interest": 96.0, "volume": 1.0, "delta": 0.3229, "gamma": 0.1989, "vega": 0.0056, "theta": -0.002, "rho": 0.0021, "theo": 0.2575, "change": -0.175, "open": 0.2, "high": 0.2, "low": 0.2, "tick": "down", "last_trade_price": 0.2, "last_trade_time": "2026-11-02T12:58:07", "percent_change": -46.6667, "prev_day_close": 0.224999994039536}, {"option": "STEM270416P00005000", "bid": 2.2, "bid_size": 205.0, "ask": 3.3, "ask_size": 189.0, "iv": 0.9225, "open_interest": 64.0, "volume": 0.0, "delta": -0.747, "gamma": 0.2228, "vega": 0.0049, "theta": -0.0019, "rho": -0.0092, "theo": 2.857, "change": 0.0, "open": 0.0, "high": 0.0, "low": 0.0, "tick": "no_change", "last_trade_price": 2.6, "last_trade_time": "2026-10-29T15:58:48", "percent_change": 0.0, "prev_day_close": 2.75}, {"option": "STEM270416C00007500", "bid": 0.0, "bid_size": 0.0, "ask": 0.75, "ask_size": 1338.0, "iv": 1.724, "open_interest": 53.0, "volume": 0.0, "delta": 0.2346, "gamma": 0.147, "vega": 0.0047, "theta": -0.0019, "rho": 0.0015, "theo": 0.1886, "change": 0.0, "open": 0.0, "high": 0.0, "low": 0.0, "tick": "down", "last_trade_price": 0.35, "last_trade_time": "2026-10-14T14:12:31", "percent_change": 0.0, "prev_day_close": 0.375}, {"option": "STEM270416P00007500", "bid": 4.6, "bid_size": 187.0, "ask": 5.7, "ask_size": 118.0, "iv": 0.0, "open_interest": 64.0, "volume": 0.0, "delta": -0.8472, "gamma": 0.174, "vega": 0.0035, "theta": -0.0016, "rho": -0.0097, "theo": 5.2878, "change": 0.0, "open": 0.0, "high": 0.0, "low": 0.0, "tick": "up", "last_trade_price": 5.2, "last_trade_time": "2026-10-29T10:38:27", "percent_change": 0.0, "prev_day_close": 5.14999985694885}, {"option": "STEM270416C00010000", "bid": 0.0, "bid_size": 0.0, "ask": 0.75, "ask_size": 1517.0, "iv": 1.9312, "open_interest": 17.0, "volume": 0.0, "delta": 0.1882, "gamma": 0.119, "vega": 0.0041, "theta": -0.0018, "rho": 0.0012, "theo": 0.1515, "change": 0.0, "open": 0.0, "high": 0.0, "low": 0.0, "tick": "up", "last_trade_price": 0.1, "last_trade_time": "2026-10-30T11:06:21", "percent_change": 0.0, "prev_day_close": 0.375}, {"option": "STEM270416P00010000", "bid": 7.0, "bid_size": 80.0, "ask": 8.5, "ask_size": 60.0, "iv": 1.4682, "open_interest": 5.0, "volume": 0.0, "delta": -0.9061, "gamma": 0.1588, "vega": 0.0024, "theta": -0.0012, "rho": -0.0087, "theo": 7.7541, "change": 0.0, "open": 0.0, "high": 0.0, "low": 0.0, "tick": "up", "last_trade_price": 6.49, "last_trade_time": "2026-10-16T10:42:40", "percent_change": 0.0, "prev_day_close": 7.75}, {"option": "STEM271217C00002500", "bid": 0.0, "bid_size": 0.0, "ask": 2.7, "ask_size": 1518.0, "iv": 1.4725, "open_interest": 7.0, "volume": 0.0, "delta": 0.786, "gamma": 0.112, "vega": 0.0081, "theta": -0.0011, "rho": 0.0069, "theo": 1.1648, "change": 0.0, "open": 0.0, "high": 0.0, "low": 0.0, "tick": "up", "last_trade_price": 1.5, "last_trade_time": "2026-10-29T12:18:36", "percent_change": 0.0, "prev_day_close": 1.35000002384186}, {"option": "STEM271217P00002500", "bid": 0.55, "bid_size": 1133.0, "ask": 2.8, "ask_size": 1606.0, "iv": 1.9332, "open_interest": 3.0, "volume": 0.0, "delta": -0.2759, "gamma": 0.1205, "vega": 0.0081, "theta": -0.0012, "rho": -0.0141, "theo": 1.1774, "change": 0.0, "open": 0.0, "high": 0.0, "low": 0.0, "tick": "no_change", "last_trade_price": 0.82, "last_trade_time": "2026-10-22T12:24:13", "percent_change": 0.0, "prev_day_close": 1.67499998211861}, {"option": "STEM271217C00005000", "bid": 0.0, "bid_size": 0.0, "ask": 2.9, "ask_size": 1605.0, "iv": 2.0145, "open_interest": 0.0, "volume": 0.0, "delta": 0.6226, "gamma": 0.1257, "vega": 0.0098, "theta": -0.0015, "rho": 0.0062, "theo": 0.8476, "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": 1.45000004768372}, {"option": "STEM271217P00005000", "bid": 1.55, "bid_size": 275.0, "ask": 4.3, "ask_size": 590.0, "iv": 0.9302, "open_interest": 5.0, "volume": 0.0, "delta": -0.4584, "gamma": 0.1455, "vega": 0.0095, "theta": -0.0014, "rho": -0.0261, "theo": 3.2992, "change": 0.0, "open": 0.0, "high": 0.0, "low": 0.0, "tick": "up", "last_trade_price": 2.87, "last_trade_time": "2026-10-29T10:37:58", "percent_change": 0.0, "prev_day_close": 2.92500007152557}, {"option": "STEM271217C00007500", "bid": 0.0, "bid_size": 0.0, "ask": 2.8, "ask_size": 959.0, "iv": 2.1485, "open_interest": 1.0, "volume": 0.0, "delta": 0.5456, "gamma": 0.1204, "vega": 0.0101, "theta": -0.0017, "rho": 0.0056, "theo": 0.7275, "change": 0.0, "open": 0.0, "high": 0.0, "low": 0.0, "tick": "down", "last_trade_price": 0.44, "last_trade_time": "2026-10-28T14:47:29", "percent_change": 0.0, "prev_day_close": 1.39999997615814}, {"option": "STEM271217P00007500", "bid": 3.9, "bid_size": 81.0, "ask": 7.1, "ask_size": 141.0, "iv": 1.2758, "open_interest": 40.0, "volume": 1.0, "delta": -0.5537, "gamma": 0.1503, "vega": 0.0093, "theta": -0.0014, "rho": -0.0331, "theo": 5.635, "change": 0.28, "open": 5.33, "high": 5.33, "low": 5.33, "tick": "up", "last_trade_price": 5.33, "last_trade_time": "2026-11-02T09:31:09", "percent_change": 5.54456, "prev_day_close": 5.5}], "symbol": "STEM", "security_type": "stock", "exchange_id": 3, "current_price": 2.25, "price_change": 0.03, "price_change_percent": 1.3333, "bid": 2.21, "ask": 2.4, "bid_size": 4000, "ask_size": 400, "open": 2.3, "high": 2.42, "low": 2.25, "close": 2.25, "prev_day_close": 2.25, "volume": 128442, "iv30": 110.906, "iv30_change": -0.188, "iv30_change_percent": -0.1692, "seqno": 10521125276, "last_trade_time": "2026-11-02T15:59:56", "tick": "up"}, "symbol": "STEM"}