{"schema_version":1,"publisher":"Half on a Double","data_through":"2026-10-16","frequency":"end-of-day","methodology":"market-implied-carry-v1","generation":"market-implied-carry-analytics-20260917T000000Z","canonical_url":"https://halfonadouble.com/stock/SMMT","markdown_url":"https://halfonadouble.com/stock/SMMT.md","history_url":"https://halfonadouble.com/api/v1/history/SMMT.csv","advanced_analysis_url":"https://halfonadouble.com/api/v1/analysis/SMMT.json?date=2026-10-16&public_schema=4","definitions_url":"https://halfonadouble.com/methodology.md","license_url":"https://halfonadouble.com/terms.md","disclaimer_url":"https://halfonadouble.com/disclaimer.md","symbol":"SMMT","page_tier":"A","units":{"prices":"USD per share","open_interest":"option contracts","gamma_exposure":"modeled dollar-delta change per USD 1 underlying move","gamma_exposure_normalized":"modeled gamma exposure per 100,000 open option contracts","distances":"percent of close","forward_outcomes":"close-to-close percent return"},"snapshot":{"close":14.630000114440918,"previous_close":15.369999885559082,"delta_neutral":11.790222457506614,"gamma_neutral":9.731504803759488,"gamma_max":18.118869530147816,"total_open_interest":201755,"previous_open_interest":239018,"listed_contracts":321,"listed_calls":213,"listed_puts":150,"gamma_max_distance_pct":23.847364240709194,"delta_neutral_distance_pct":-19.410646853865902,"gamma_neutral_distance_pct":-33.48253774684693,"open_interest_change_1d_pct":-15.590039243906318,"call_open_interest":126365,"put_open_interest":75390,"put_call_open_interest_ratio":0.5966050726071301,"nearest_expiration_max_pain":16,"nearest_expiration_max_pain_expiry":"2026-10-23","nearest_expiration_max_pain_distance_pct":9.364319035150166,"all_expiration_max_pain":15,"net_gamma_exposure":2998017.502607022,"net_gamma_exposure_per_100k_open_interest":1485969.3700810499,"gamma_exposure_flip":9.731504803759488,"gamma_exposure_flip_distance_pct":-33.48253774684693,"call_wall":20,"call_wall_distance_pct":36.70539879393771,"put_wall":16,"put_wall_distance_pct":9.364319035150166,"gamma_max_cross_direction":null,"delta_neutral_cross_direction":null,"open_interest_rank":390},"history_summary":{"first_date":"2020-12-01","last_date":"2026-10-16","session_count":1224,"trailing_window_sessions":252,"sessions_above_gamma_max_pct":6.349206349206349,"gamma_max_cross_count":14,"delta_neutral_cross_count":22,"gamma_max_prior_sessions_closer_pct":67.06349206349206,"gamma_max_prior_comparison_sessions":252,"delta_neutral_prior_sessions_closer_pct":78.57142857142857,"delta_neutral_prior_comparison_sessions":252,"open_interest_percentile_1y":95.63492063492063,"open_interest_change_1d_contracts":-37263,"open_interest_change_z_252":-3.9939459961411186,"open_interest_change_z_comparison_sessions":252,"open_interest_change_5_sessions_pct":-3.3212577748387533,"open_interest_change_21_sessions_pct":10.03457754314012,"call_put_open_interest_changes":{"one_session":{"call_change_contracts":-21487,"put_change_contracts":-15776,"call_growth_pct":-14.532776019262506,"put_growth_pct":-17.304696926485754,"call_minus_put_growth_pp":2.7719209072232474},"five_sessions":{"call_change_contracts":3884,"put_change_contracts":-10815,"call_growth_pct":3.171104089613899,"put_growth_pct":-12.545676004872108,"call_minus_put_growth_pp":15.716780094486008},"call_change_surprise":{"z_score":-3.317884309075683,"comparison_sessions":252},"put_change_surprise":{"z_score":-4.3344116953211405,"comparison_sessions":252},"call_minus_put_growth_surprise":{"z_score":0.39327762666372573,"comparison_sessions":252}}},"advanced_options":{"data_through":"2026-10-16","analysis_coverage":1,"catalyst_score":57.064535159574184,"directional_score":20.244828418877947,"catalyst_reasons":["smile convexity 50.4 pp","25Δ risk reversal -33.9 pp","IV rank 100"],"features":{"price":14.63,"totalOi":239631,"analysisCoverage":1,"avgIvPct":928.8,"ivRank":100,"iv52wHighPct":928.8,"iv52wLowPct":138.97,"frontDte":7,"termPremiumPp":-2.4311,"riskReversalFrontPp":-33.89,"riskReversal30dPp":-2.34,"butterflyFrontPp":50.4,"butterfly30dPp":46.44,"putCallOiRatio":0.613,"putCallOiFrontRatio":0.578,"putCallVolumeFrontRatio":1.057,"optionVolume":11628,"volumeOiRatio":0.048525,"netDeltaNormalized":0.1299,"dealerDeltaNormalized":-0.128646,"gexPer100kOi":154078.245302,"vannaPer100kOi":2336.091741,"charmPer100kOi":30222.717428,"weekendDeltaShiftPer100kOi":90668.152284,"ivSurfaceRangePp":109.9,"gammaFlipDistancePct":48.393712,"maxPainDistancePct":2.52905,"peakCallDistancePct":36.7054,"peakPutDistancePct":-31.6473},"complete_analysis_url":"https://halfonadouble.com/api/v1/analysis/SMMT.json?date=2026-10-16&public_schema=4","interpretation":"Catalyst intensity ranks unusual option pricing and activity; it does not identify the event, predict direction or recommend a trade. Directional score summarizes relative positioning under documented model conventions."},"gamma_max_cross_outcomes":[{"direction":"above","event_count":27,"completed_path_count":27,"latest_cross_date":"2026-09-14","horizons":[{"sessions":1,"sample_size":27,"median_return_pct":-1.570869441135958,"p25_return_pct":-4.455744997680355,"p75_return_pct":1.9336310016827452,"above_zero_pct":33.33333333333333,"median_interval_low_pct":-3.400305986488039,"median_interval_high_pct":1.4167674636496486,"median_interval_nominal_coverage_pct":94.77610141038895,"confidence_floor_pct":0},{"sessions":3,"sample_size":27,"median_return_pct":-1.9992840462919825,"p25_return_pct":-10.818303979151928,"p75_return_pct":1.3431612045418206,"above_zero_pct":40.74074074074074,"median_interval_low_pct":-6.827026083919829,"median_interval_high_pct":0.7739329530030759,"median_interval_nominal_coverage_pct":94.77610141038895,"confidence_floor_pct":0},{"sessions":5,"sample_size":27,"median_return_pct":-0.531914387692578,"p25_return_pct":-7.667619395162517,"p75_return_pct":5.89495675685856,"above_zero_pct":48.148148148148145,"median_interval_low_pct":-5.194800369332064,"median_interval_high_pct":4.166662527455389,"median_interval_nominal_coverage_pct":94.77610141038895,"confidence_floor_pct":0},{"sessions":10,"sample_size":27,"median_return_pct":-2.2727340459820944,"p25_return_pct":-14.906863095690293,"p75_return_pct":7.827240615062337,"above_zero_pct":44.44444444444444,"median_interval_low_pct":-10.224949154433126,"median_interval_high_pct":6.720984021001808,"median_interval_nominal_coverage_pct":94.77610141038895,"confidence_floor_pct":0}]},{"direction":"below","event_count":35,"completed_path_count":35,"latest_cross_date":"2026-09-15","horizons":[{"sessions":1,"sample_size":35,"median_return_pct":-1.5306168375089801,"p25_return_pct":-4.402538991779698,"p75_return_pct":2.299166579737988,"above_zero_pct":37.142857142857146,"median_interval_low_pct":-3.560364585081288,"median_interval_high_pct":0.534348799891915,"median_interval_nominal_coverage_pct":91.04689210653305,"confidence_floor_pct":0},{"sessions":3,"sample_size":35,"median_return_pct":-1.5151590409901994,"p25_return_pct":-7.498978676024315,"p75_return_pct":2.632077218233131,"above_zero_pct":48.57142857142857,"median_interval_low_pct":-5.22945333087298,"median_interval_high_pct":1.8832373956716664,"median_interval_nominal_coverage_pct":91.04689210653305,"confidence_floor_pct":0},{"sessions":5,"sample_size":35,"median_return_pct":0,"p25_return_pct":-8.164982705185986,"p75_return_pct":8.430953235568106,"above_zero_pct":45.714285714285715,"median_interval_low_pct":-1.6091884220427732,"median_interval_high_pct":4.235290078555831,"median_interval_nominal_coverage_pct":91.04689210653305,"confidence_floor_pct":0},{"sessions":10,"sample_size":35,"median_return_pct":1.8135654897880382,"p25_return_pct":-7.339102965769922,"p75_return_pct":15.329689163826743,"above_zero_pct":54.285714285714285,"median_interval_low_pct":-3.647063760196456,"median_interval_high_pct":6.190481921172464,"median_interval_nominal_coverage_pct":91.04689210653305,"confidence_floor_pct":0}]}],"missing_value_semantics":"null means unavailable; it never means zero","interpretation":"These are descriptive end-of-day model outputs. Signed GEX uses the published call-positive, put-negative convention and is not observed dealer inventory. None of the fields are live prices, predictions or investment advice."}