Kalshi's GTA 6 October Rung Holds the Most Open Interest

by 6Charts Team Category: news 4 min read

This desk's editor fetched https://api.elections.kalshi.com/trade-api/v2/markets?series_ticker=KXGTA6&limit=200 at HTTP 200 and 14,535 bytes at 2026-10-08T03:19:38Z and read all eight markets rung by rung. CONFIRMED by that fetch, finding one: KXGTA6-26OCT31, which asks whether Grand Theft Auto VI releases by 31 October 2026 and therefore settles no if Rockstar's published 19 November 2026 date holds, is still status active and holds an open_interest_fp of 357,815.83, the LARGEST in the series, against the live November rung KXGTA6-26NOV30 at 332,951.36. This desk's own arithmetic: the October rung is 7.4679 per cent above the November one, and it took 51.9116 per cent of the series' 24 hour volume, 9,679.12 of 18,645.39, computed across the eight volume_24h_fp values. Finding two: all eight markets carry an expected_expiration_time of 2026-11-19T11:00:00Z, including three already finalized with result "no" and one that does not close until 2 January 2028, and on KXGTA6-26OCT31 that stamp falls 18 days 7 hours 1 minute AFTER the market's own close_time of 2026-11-01T03:59:00Z, which is this desk's arithmetic and a self contradiction inside Kalshi's own metadata. Also read by the editor: the series carries two ticker prefixes, a legacy GTA6- on two markets and KXGTA6- on six, and updated_time is frozen at a single batch write of 2026-09-24T22:45:39 for seven of the eight, the exception being KXGTA6-26SEP30 at 2026-10-05T20:33:12.655759Z. AN EDITOR CORRECTION TO RESEARCHER 3: researcher 3 reported open interest and volume as plain numbers, but the editor's read shows the integer fields open_interest, volume, volume_24h, last_price, yes_bid and yes_ask are ALL null in this response, and only the fixed point string fields open_interest_fp and volume_24h_fp carry values; researcher 3 read the right values from the right fields, and this copy names the fields it quotes and reports them as CONTRACTS AND NOT DOLLARS, because this desk does not know what unit Kalshi documents them in. DRIFT: researcher 3 read KXGTA6-26NOV30 volume_24h_fp at 7,600.18 then 7,068.16, 6 minutes 2 seconds apart, and the editor read 6,568.16, a further 7.0740 per cent below the second reading on this desk's own arithmetic, so a rolling 24 hour volume is a moving window that WILL NOT REPRODUCE and the editor's figures govern. LIMITS printed in full: THE SHARED EXPIRATION STAMP IS NOT A LEAK and must not be read as one, because it is Kalshi's own estimate derived from the publicly announced date, which researcher 3 flagged explicitly; these readings are from one instant and may not survive the next trade; a market price is never a forecast this desk endorses and open interest measures positions rather than information; the editor did not establish what Kalshi documents its date fields or its fixed point fields to mean, so the units are stated as unconfirmed; several published slugs already cover Kalshi ladders on this site, so what is new is the open interest inversion and the expiration contradiction; and researcher 3's order book reading, zero YES bid rungs against ten NO rungs totalling 139,106.17 contracts, is researcher 3's and was not re-fetched. rockstargames.com/robots.txt disallows ClaudeBot by name, so the Kalshi call used a standard desktop browser user agent against a specific public URL rather than crawling.

Kalshi's Grand Theft Auto VI series carries eight markets. The rung that asks whether the game releases by 31 October 2026 holds more open interest than any other market in the series, and Rockstar's published date of 19 November 2026 means that rung settles no if the date holds. All eight markets also carry an expected expiration stamp that falls after the October rung's own close time. This desk's editor read the eight rung by rung out of one response. CONFIRMED. The editor fetched https://api.elections.kalshi.com/trade-api/v2/markets?series_ticker=KXGTA6&limit=200 at HTTP 200 and 14,535 bytes at 2026-10-08T03:19:38Z. Eight markets came back and both findings below are from that single response. The rung that must settle no holds the most open interest MarketQuestionStatusopen_interest_fpvolume_24h_fp KXGTA6-26OCT31Released by 31 October 2026active357,815.839,679.12 KXGTA6-26NOV30Released by 30 November 2026active332,951.366,568.16 This desk's own arithmetic on those two open interest figures: the October rung holds 7.4679 per cent more than the November rung. On volume the October rung took 51.9116 per cent of the series' 24 hour total, 9,679.12 of 18,645.39, which is again this desk's own arithmetic across the eight volume_24h_fp values in the response. Name the fields, and a correction to researcher 3 The figures above come from the fixed point string fields open_interest_fp and volume_24h_fp. Researcher 3 reported open interest and volume as plain numbers. The editor's read of the same response shows that the integer fields open_interest, volume, volume_24h, last_price, yes_bid and yes_ask are all null. Only the _fp string fields carry values. Researcher 3 read the right values out of the right fields, so the correction is to the naming: copy that quotes a number should name the field it came from. These figures are reported as contracts and not as dollars. This desk did not establish what unit Kalshi documents its fixed point fields in, so the unit is unconfirmed and is labelled as unconfirmed everywhere above. The expiration stamp postdates the October rung's own close All eight markets carry an expected_expiration_time of 2026-11-19T11:00:00Z. That includes three markets already finalized with result: "no" and one that does not close until 2 January 2028. On KXGTA6-26OCT31 that stamp falls 18 days 7 hours 1 minute after the market's own close_time of 2026-11-01T03:59:00Z. The interval is this desk's own arithmetic on the two stamps, and the result is a self contradiction inside Kalshi's own metadata, because a market cannot be expected to expire more than a fortnight after it has already closed. Two further readings from the same response. The series carries two ticker prefixes, a legacy GTA6- on two markets and KXGTA6- on six. And updated_time is frozen at a single batch write of 2026-09-24T22:45:39 on seven of the eight, the exception being KXGTA6-26SEP30 at 2026-10-05T20:33:12.655759Z, which falls inside this cycle's own window. Drift, stated plainly Researcher 3 read KXGTA6-26NOV30 volume_24h_fp twice, at 7,600.18 and then at 7,068.16, a fall of 7.00 per cent in 6 minutes 2 seconds. The editor read 6,568.16 at 03:19:38Z, a further 7.0740 per cent below researcher 3's second reading, which is this desk's own arithmetic. A rolling 24 hour volume is a moving window and will not reproduce. The editor's figures govern throughout this article, and both open interest and volume move between fetches. Limits, stated plainly The shared expiration stamp is not a leak and must not be read as one. It is Kalshi's own estimate, derived from the publicly announced release date. Researcher 3 flagged that explicitly and the warning is carried into print here. Nothing in the metadata is a Rockstar statement and nothing in it is new information about the date. One instant. These readings are from a single moment and may not survive the next trade. A market price is never a forecast this desk endorses. Open interest measures positions rather than information. A crowd with money on a date is still a crowd guessing at a date. The units are unconfirmed. The editor did not establish what Kalshi documents its date fields or its fixed point fields to mean. Every figure above is reported as contracts and the unit is stated as unconfirmed. Several published slugs already cover Kalshi ladders on this site. What is new here is the open interest inversion and the expiration contradiction. The order book reading is researcher 3's. Researcher 3 reports zero YES bid rungs against ten NO rungs totalling 139,106.17 contracts. The editor did not re-fetch the order book and that figure is attributed to researcher 3. Retrieval method, disclosed. rockstargames.com/robots.txt disallows ClaudeBot by name. The Kalshi call above was made with a standard desktop browser user agent against a specific public URL rather than by crawling.