{"schema_version":1,"publisher":"Half on a Double","data_through":"2026-10-02","frequency":"end-of-day","methodology":"market-implied-carry-v1","generation":"market-implied-carry-analytics-20260917T000000Z","canonical_url":"https://halfonadouble.com/stock/AAPL","markdown_url":"https://halfonadouble.com/stock/AAPL.md","history_url":"https://halfonadouble.com/api/v1/history/AAPL.csv","advanced_analysis_url":"https://halfonadouble.com/api/v1/analysis/AAPL.json?date=2026-10-02","definitions_url":"https://halfonadouble.com/methodology.md","license_url":"https://halfonadouble.com/terms.md","disclaimer_url":"https://halfonadouble.com/disclaimer.md","symbol":"AAPL","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":333.69000244140625,"previous_close":330.32000732421875,"delta_neutral":304.1664848249334,"gamma_neutral":305.93931270349003,"gamma_max":346.7899209757483,"total_open_interest":4672261,"previous_open_interest":4821490,"listed_contracts":2070,"listed_calls":1509,"listed_puts":1163,"gamma_max_distance_pct":3.9257749523503707,"delta_neutral_distance_pct":-8.847588300658485,"gamma_neutral_distance_pct":-8.316308410465206,"open_interest_change_1d_pct":-3.095080566380932,"call_open_interest":2681917,"put_open_interest":1990344,"put_call_open_interest_ratio":0.7421348237100551,"nearest_expiration_max_pain":327.5,"nearest_expiration_max_pain_expiry":"2026-10-05","nearest_expiration_max_pain_distance_pct":-1.8550158518738282,"all_expiration_max_pain":300,"net_gamma_exposure":378215055.7120298,"net_gamma_exposure_per_100k_open_interest":8094904.281075689,"gamma_exposure_flip":305.93931270349003,"gamma_exposure_flip_distance_pct":-8.316308410465206,"call_wall":340,"call_wall_distance_pct":1.8909759095050334,"put_wall":330,"put_wall_distance_pct":-1.1058174995980559,"gamma_max_cross_direction":null,"delta_neutral_cross_direction":null,"open_interest_rank":18},"history_summary":{"first_date":"2020-12-01","last_date":"2026-10-02","session_count":1394,"trailing_window_sessions":252,"sessions_above_gamma_max_pct":0.7936507936507936,"gamma_max_cross_count":2,"delta_neutral_cross_count":0,"gamma_max_prior_sessions_closer_pct":50.79365079365079,"gamma_max_prior_comparison_sessions":252,"delta_neutral_prior_sessions_closer_pct":48.41269841269841,"delta_neutral_prior_comparison_sessions":252,"open_interest_percentile_1y":45.63492063492063,"open_interest_change_1d_contracts":-149229,"open_interest_change_z_252":-0.6103215374118335,"open_interest_change_z_comparison_sessions":252,"open_interest_change_5_sessions_pct":3.9569750744145296,"open_interest_change_21_sessions_pct":-1.1554351847953734,"call_put_open_interest_changes":{"one_session":{"call_change_contracts":-87358,"put_change_contracts":-61871,"call_growth_pct":-3.1545440593657186,"put_growth_pct":-3.0148400630538226,"call_minus_put_growth_pp":-0.139703996311896},"five_sessions":{"call_change_contracts":80743,"put_change_contracts":97100,"call_growth_pct":3.104098380192944,"put_growth_pct":5.128763117696399,"call_minus_put_growth_pp":-2.0246647375034548},"call_change_surprise":{"z_score":-0.5916927309471401,"comparison_sessions":252},"put_change_surprise":{"z_score":-0.6143417703688713,"comparison_sessions":252},"call_minus_put_growth_surprise":{"z_score":-0.06718058604138284,"comparison_sessions":252}}},"advanced_options":{"data_through":"2026-10-02","analysis_coverage":1,"catalyst_score":42.82240572943756,"directional_score":-10.944881889763778,"catalyst_reasons":["volume/OI 0.27"],"features":{"symbol":"AAPL","price":333.69,"totalOi":4985059,"analysisCoverage":1,"avgIvPct":56.4,"ivRank":11.4,"iv52wHighPct":200,"iv52wLowPct":38,"frontDte":3,"frontAtmIvPct":22.9429,"backAtmIvPct":25.6552,"termPremiumPp":-2.7123,"expectedMoveFrontPct":2.08,"straddleFrontPct":1.14,"straddle30dPct":5.66,"riskReversalFrontPp":1.37,"riskReversal30dPp":3.24,"butterflyFrontPp":-3.13,"butterfly30dPp":0.95,"putCallOiRatio":0.736,"putCallOiFrontRatio":0.672,"putCallVolumeFrontRatio":0.505,"optionVolume":1347922,"volumeOiRatio":0.270392,"netDeltaNormalized":0.189077,"dealerDeltaNormalized":-0.181829,"gexPer100kOi":24931220.81504,"vannaPer100kOi":1559.03872,"charmPer100kOi":-1994324.039094,"weekendDeltaShiftPer100kOi":-5982972.097221,"ivSurfaceRangePp":156.5,"gammaFlipDistancePct":1.162756,"maxPainDistancePct":-10.096197,"peakCallDistancePct":0.39258,"peakPutDistancePct":-0.356618},"complete_analysis_url":"https://halfonadouble.com/api/v1/analysis/AAPL.json?date=2026-10-02","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":12,"completed_path_count":12,"latest_cross_date":"2026-07-15","horizons":[{"sessions":1,"sample_size":12,"median_return_pct":0.20506775492822316,"p25_return_pct":-0.6005729236174345,"p75_return_pct":1.629931313747346,"above_zero_pct":58.333333333333336,"median_interval_low_pct":-0.6443275472520216,"median_interval_high_pct":1.6976043690765552,"median_interval_nominal_coverage_pct":96.142578125,"confidence_floor_pct":0},{"sessions":3,"sample_size":12,"median_return_pct":0.11245767700213682,"p25_return_pct":-1.4802101014727036,"p75_return_pct":2.5381736153521297,"above_zero_pct":50,"median_interval_low_pct":-2.614586139709363,"median_interval_high_pct":3.122117249442935,"median_interval_nominal_coverage_pct":96.142578125,"confidence_floor_pct":0},{"sessions":5,"sample_size":12,"median_return_pct":-0.16543060888301042,"p25_return_pct":-1.1321396259604655,"p75_return_pct":1.7109172199403277,"above_zero_pct":50,"median_interval_low_pct":-2.5142475048323787,"median_interval_high_pct":2.6580540713778023,"median_interval_nominal_coverage_pct":96.142578125,"confidence_floor_pct":0},{"sessions":10,"sample_size":12,"median_return_pct":0.8512098261478918,"p25_return_pct":-0.0033251226020658553,"p75_return_pct":2.7020768394356134,"above_zero_pct":75,"median_interval_low_pct":-0.7279395498356545,"median_interval_high_pct":3.2641228828721447,"median_interval_nominal_coverage_pct":96.142578125,"confidence_floor_pct":0}]},{"direction":"below","event_count":12,"completed_path_count":12,"latest_cross_date":"2026-07-17","horizons":[{"sessions":1,"sample_size":12,"median_return_pct":-0.359853791011866,"p25_return_pct":-0.9548225664646248,"p75_return_pct":0.4390726023324687,"above_zero_pct":50,"median_interval_low_pct":-1.3195907278142571,"median_interval_high_pct":0.7712236217600754,"median_interval_nominal_coverage_pct":96.142578125,"confidence_floor_pct":0},{"sessions":3,"sample_size":12,"median_return_pct":-0.16001449872046214,"p25_return_pct":-1.671978196453433,"p75_return_pct":1.262485124937951,"above_zero_pct":50,"median_interval_low_pct":-1.980204209373082,"median_interval_high_pct":1.675505308884473,"median_interval_nominal_coverage_pct":96.142578125,"confidence_floor_pct":0},{"sessions":5,"sample_size":12,"median_return_pct":-0.05723642954112429,"p25_return_pct":-1.7007072907253478,"p75_return_pct":0.987237108553346,"above_zero_pct":50,"median_interval_low_pct":-3.408447311899654,"median_interval_high_pct":1.3210107199512544,"median_interval_nominal_coverage_pct":96.142578125,"confidence_floor_pct":0},{"sessions":10,"sample_size":12,"median_return_pct":0.9142998212162023,"p25_return_pct":-1.7239606319695844,"p75_return_pct":2.606763034423032,"above_zero_pct":66.66666666666666,"median_interval_low_pct":-1.9127131058799485,"median_interval_high_pct":2.971039664772346,"median_interval_nominal_coverage_pct":96.142578125,"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."}