{"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/NN","markdown_url":"https://halfonadouble.com/stock/NN.md","history_url":"https://halfonadouble.com/api/v1/history/NN.csv","advanced_analysis_url":"https://halfonadouble.com/api/v1/analysis/NN.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":"NN","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":9.59000015258789,"previous_close":10.710000038146973,"delta_neutral":6.529087836045086,"gamma_neutral":9.59000015258789,"gamma_max":11.986679424068999,"total_open_interest":547820,"previous_open_interest":632497,"listed_contracts":389,"listed_calls":240,"listed_puts":169,"gamma_max_distance_pct":24.991441432191817,"delta_neutral_distance_pct":-31.91775044671723,"gamma_neutral_distance_pct":0,"open_interest_change_1d_pct":-13.387731483311383,"call_open_interest":505635,"put_open_interest":42185,"put_call_open_interest_ratio":0.0834297467540815,"nearest_expiration_max_pain":12.5,"nearest_expiration_max_pain_expiry":"2026-10-23","nearest_expiration_max_pain_distance_pct":30.344106372374114,"all_expiration_max_pain":14,"net_gamma_exposure":19214175.615555365,"net_gamma_exposure_per_100k_open_interest":3507388.488108387,"gamma_exposure_flip":null,"gamma_exposure_flip_distance_pct":null,"call_wall":17,"call_wall_distance_pct":77.26798466642879,"put_wall":12,"put_wall_distance_pct":25.13034211747915,"gamma_max_cross_direction":null,"delta_neutral_cross_direction":null,"open_interest_rank":181},"history_summary":{"first_date":"2023-08-25","last_date":"2026-10-16","session_count":717,"trailing_window_sessions":252,"sessions_above_gamma_max_pct":35.714285714285715,"gamma_max_cross_count":30,"delta_neutral_cross_count":0,"gamma_max_prior_sessions_closer_pct":92.46031746031747,"gamma_max_prior_comparison_sessions":252,"delta_neutral_prior_sessions_closer_pct":0.3968253968253968,"delta_neutral_prior_comparison_sessions":252,"open_interest_percentile_1y":89.68253968253968,"open_interest_change_1d_contracts":-84677,"open_interest_change_z_252":-4.780881387243915,"open_interest_change_z_comparison_sessions":252,"open_interest_change_5_sessions_pct":-10.848051764177457,"open_interest_change_21_sessions_pct":-14.839836961083941,"call_put_open_interest_changes":{"one_session":{"call_change_contracts":-78687,"put_change_contracts":-5990,"call_growth_pct":-13.466376415743376,"put_growth_pct":-12.433834976647638,"call_minus_put_growth_pp":-1.0325414390957377},"five_sessions":{"call_change_contracts":-61471,"put_change_contracts":-5188,"call_growth_pct":-10.839419791009089,"put_growth_pct":-10.951385810482764,"call_minus_put_growth_pp":0.1119660194736749},"call_change_surprise":{"z_score":-5.181740083555985,"comparison_sessions":252},"put_change_surprise":{"z_score":-1.7389305835382365,"comparison_sessions":252},"call_minus_put_growth_surprise":{"z_score":-0.08129287920902181,"comparison_sessions":252}}},"advanced_options":{"data_through":"2026-10-16","analysis_coverage":0.9444,"catalyst_score":36.61598772805574,"directional_score":47.29870408628693,"catalyst_reasons":["25Δ risk reversal -187.3 pp"],"features":{"price":9.59,"totalOi":652693,"analysisCoverage":0.9444,"avgIvPct":735.1,"ivRank":96.9,"iv52wHighPct":754.7,"iv52wLowPct":119.34,"frontDte":7,"termPremiumPp":-29.7746,"riskReversalFrontPp":-187.28,"riskReversal30dPp":-11.13,"butterflyFrontPp":null,"butterfly30dPp":null,"putCallOiRatio":0.08,"putCallOiFrontRatio":0.404,"putCallVolumeFrontRatio":0.364,"optionVolume":6391,"volumeOiRatio":0.009792,"netDeltaNormalized":0.151828,"dealerDeltaNormalized":-0.151825,"gexPer100kOi":337388.916382,"vannaPer100kOi":5274.455219,"charmPer100kOi":-20334.062109,"weekendDeltaShiftPer100kOi":-61002.033115,"ivSurfaceRangePp":62.6,"gammaFlipDistancePct":41.188738,"maxPainDistancePct":45.985401,"peakCallDistancePct":56.41293,"peakPutDistancePct":25.130344},"complete_analysis_url":"https://halfonadouble.com/api/v1/analysis/NN.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":31,"completed_path_count":31,"latest_cross_date":"2026-08-21","horizons":[{"sessions":1,"sample_size":31,"median_return_pct":-0.4923072228064873,"p25_return_pct":-4.059616572554442,"p75_return_pct":1.761012261131778,"above_zero_pct":48.38709677419355,"median_interval_low_pct":-2.408929708489449,"median_interval_high_pct":0.97861709412983,"median_interval_nominal_coverage_pct":92.92444540187716,"confidence_floor_pct":0},{"sessions":3,"sample_size":31,"median_return_pct":0.7494613884435841,"p25_return_pct":-6.448398730220212,"p75_return_pct":4.887998386794246,"above_zero_pct":58.06451612903226,"median_interval_low_pct":-3.901172802374442,"median_interval_high_pct":4.080947748360431,"median_interval_nominal_coverage_pct":92.92444540187716,"confidence_floor_pct":0},{"sessions":5,"sample_size":31,"median_return_pct":-0.6060600368335001,"p25_return_pct":-9.95634807438936,"p75_return_pct":6.001312885511878,"above_zero_pct":48.38709677419355,"median_interval_low_pct":-6.9565233976944585,"median_interval_high_pct":3.4883630669011456,"median_interval_nominal_coverage_pct":92.92444540187716,"confidence_floor_pct":0},{"sessions":10,"sample_size":31,"median_return_pct":-4.444451770337343,"p25_return_pct":-13.518118554383445,"p75_return_pct":7.1076138769862185,"above_zero_pct":48.38709677419355,"median_interval_low_pct":-12.596154516265234,"median_interval_high_pct":5.60605895311268,"median_interval_nominal_coverage_pct":92.92444540187716,"confidence_floor_pct":0}]},{"direction":"below","event_count":37,"completed_path_count":37,"latest_cross_date":"2026-08-24","horizons":[{"sessions":1,"sample_size":37,"median_return_pct":-0.15625357006973095,"p25_return_pct":-2.0504749418318813,"p75_return_pct":1.222486846756432,"above_zero_pct":45.94594594594595,"median_interval_low_pct":-1.1718805297277646,"median_interval_high_pct":0.8714588349299834,"median_interval_nominal_coverage_pct":90.1128250407055,"confidence_floor_pct":0},{"sessions":3,"sample_size":37,"median_return_pct":-0.15599989605297182,"p25_return_pct":-5.824037273422578,"p75_return_pct":3.3412855506848915,"above_zero_pct":45.94594594594595,"median_interval_low_pct":-3.068593279958942,"median_interval_high_pct":1.1378022038437186,"median_interval_nominal_coverage_pct":90.1128250407055,"confidence_floor_pct":0},{"sessions":5,"sample_size":37,"median_return_pct":0.9913249904750732,"p25_return_pct":-7.087554908690363,"p75_return_pct":4.080169534208955,"above_zero_pct":54.054054054054056,"median_interval_low_pct":-2.4407763470152943,"median_interval_high_pct":3.480592184530251,"median_interval_nominal_coverage_pct":90.1128250407055,"confidence_floor_pct":0},{"sessions":10,"sample_size":37,"median_return_pct":-1.0125078440986202,"p25_return_pct":-9.401707636806911,"p75_return_pct":8.835345954304707,"above_zero_pct":48.64864864864865,"median_interval_low_pct":-5.051057243939628,"median_interval_high_pct":4.2713586803831305,"median_interval_nominal_coverage_pct":90.1128250407055,"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."}