{
 "slug": "openai-ipo-closing-market-cap-554",
 "title": "OpenAI IPO Closing Market Cap",
 "url": "https://polymarkettrader.com/odds/openai-ipo-closing-market-cap-554/",
 "polymarket_url": "https://polymarket.com/event/openai-ipo-closing-market-cap-554",
 "category": "economy",
 "closed": false,
 "updated": "2026-10-06T12:50:00+00:00",
 "end_date": "2028-01-01T04:59:00+00:00",
 "volume": 417962.45,
 "volume_24h": 127.31,
 "liquidity": 104124.8,
 "outcomes": [
  {
   "name": "1.5T+",
   "probability": 0.556,
   "change_24h": -0.0005,
   "volume": 93905.47,
   "closed": false
  },
  {
   "name": "No IPO by December 31, 2027",
   "probability": 0.237,
   "change_24h": 0.0025,
   "volume": 87933.77,
   "closed": false
  },
  {
   "name": "1.25T–1.5T",
   "probability": 0.095,
   "change_24h": null,
   "volume": 47945.49,
   "closed": false
  },
  {
   "name": "1T–1.25T",
   "probability": 0.0345,
   "change_24h": null,
   "volume": 52399.4,
   "closed": false
  },
  {
   "name": "750B–1T",
   "probability": 0.0265,
   "change_24h": null,
   "volume": 67260.6,
   "closed": false
  },
  {
   "name": "<500B",
   "probability": 0.025,
   "change_24h": 0.0005,
   "volume": 39334.54,
   "closed": false
  },
  {
   "name": "500–750B",
   "probability": 0.0175,
   "change_24h": null,
   "volume": 29183.19,
   "closed": false
  }
 ],
 "history": {
  "1.5T+": [
   [
    1788739230,
    0.6725
   ],
   [
    1788782416,
    0.673
   ],
   [
    1788825614,
    0.6715
   ],
   [
    1788868817,
    0.8045
   ],
   [
    1788912022,
    0.7925
   ],
   [
    1788955218,
    0.7995
   ],
   [
    1788998417,
    0.8065
   ],
   [
    1789041617,
    0.8065
   ],
   [
    1789084818,
    0.8075
   ],
   [
    1789128019,
    0.803
   ],
   [
    1789171218,
    0.8025
   ],
   [
    1789214418,
    0.803
   ],
   [
    1789257616,
    0.803
   ],
   [
    1789300820,
    0.785
   ],
   [
    1789344014,
    0.737
   ],
   [
    1789387213,
    0.729
   ],
   [
    1789430413,
    0.7735
   ],
   [
    1789473614,
    0.779
   ],
   [
    1789516815,
    0.7785
   ],
   [
    1789560018,
    0.768
   ],
   [
    1789603215,
    0.6475
   ],
   [
    1789646415,
    0.695
   ],
   [
    1789689618,
    0.6755
   ],
   [
    1789732819,
    0.711
   ],
   [
    1789776019,
    0.6945
   ],
   [
    1789819219,
    0.6895
   ],
   [
    1789862418,
    0.613
   ],
   [
    1789905615,
    0.6615
   ],
   [
    1789948815,
    0.6585
   ],
   [
    1789992012,
    0.657
   ],
   [
    1790035216,
    0.6835
   ],
   [
    1790078415,
    0.683
   ],
   [
    1790121617,
    0.598
   ],
   [
    1790164820,
    0.6175
   ],
   [
    1790208028,
    0.607
   ],
   [
    1790251217,
    0.615
   ],
   [
    1790294420,
    0.604
   ],
   [
    1790337616,
    0.5985
   ],
   [
    1790380817,
    0.598
   ],
   [
    1790424016,
    0.598
   ],
   [
    1790467216,
    0.608
   ],
   [
    1790510415,
    0.61
   ],
   [
    1790553630,
    0.6115
   ],
   [
    1790596816,
    0.612
   ],
   [
    1790640017,
    0.6135
   ],
   [
    1790683218,
    0.612
   ],
   [
    1790726418,
    0.6395
   ],
   [
    1790769617,
    0.628
   ],
   [
    1790812819,
    0.581
   ],
   [
    1790856018,
    0.5035
   ],
   [
    1790899218,
    0.5105
   ],
   [
    1790942417,
    0.553
   ],
   [
    1790985621,
    0.554
   ],
   [
    1791028818,
    0.554
   ],
   [
    1791072017,
    0.5535
   ],
   [
    1791115219,
    0.555
   ],
   [
    1791158421,
    0.556
   ],
   [
    1791201619,
    0.5565
   ],
   [
    1791244819,
    0.556
   ],
   [
    1791288023,
    0.556
   ],
   [
    1791291739,
    0.556
   ]
  ],
  "No IPO by December 31, 2027": [
   [
    1788739232,
    0.109
   ],
   [
    1788782419,
    0.1065
   ],
   [
    1788825616,
    0.1065
   ],
   [
    1788868818,
    0.047
   ],
   [
    1788912023,
    0.037
   ],
   [
    1788955221,
    0.046
   ],
   [
    1788998418,
    0.041
   ],
   [
    1789041618,
    0.0385
   ],
   [
    1789084820,
    0.035
   ],
   [
    1789128021,
    0.0605
   ],
   [
    1789171220,
    0.0685
   ],
   [
    1789214421,
    0.0635
   ],
   [
    1789257618,
    0.065
   ],
   [
    1789300822,
    0.0505
   ],
   [
    1789344016,
    0.0555
   ],
   [
    1789387214,
    0.0675
   ],
   [
    1789430415,
    0.049
   ],
   [
    1789473615,
    0.048
   ],
   [
    1789516816,
    0.048
   ],
   [
    1789560022,
    0.0805
   ],
   [
    1789603217,
    0.084
   ],
   [
    1789646417,
    0.084
   ],
   [
    1789689621,
    0.0845
   ],
   [
    1789732821,
    0.084
   ],
   [
    1789776021,
    0.141
   ],
   [
    1789819221,
    0.1515
   ],
   [
    1789862420,
    0.251
   ],
   [
    1789905617,
    0.1745
   ],
   [
    1789948817,
    0.172
   ],
   [
    1789992013,
    0.173
   ],
   [
    1790035218,
    0.1445
   ],
   [
    1790078417,
    0.1695
   ],
   [
    1790121619,
    0.2625
   ],
   [
    1790164825,
    0.2035
   ],
   [
    1790208030,
    0.207
   ],
   [
    1790251219,
    0.2285
   ],
   [
    1790294422,
    0.2235
   ],
   [
    1790337618,
    0.227
   ],
   [
    1790380818,
    0.2295
   ],
   [
    1790424017,
    0.2295
   ],
   [
    1790467217,
    0.224
   ],
   [
    1790510417,
    0.2245
   ],
   [
    1790553632,
    0.2235
   ],
   [
    1790596817,
    0.224
   ],
   [
    1790640018,
    0.225
   ],
   [
    1790683220,
    0.215
   ],
   [
    1790726420,
    0.19
   ],
   [
    1790769619,
    0.21
   ],
   [
    1790812821,
    0.215
   ],
   [
    1790856020,
    0.2245
   ],
   [
    1790899220,
    0.2175
   ],
   [
    1790942419,
    0.2135
   ],
   [
    1790985623,
    0.2395
   ],
   [
    1791028820,
    0.2335
   ],
   [
    1791072019,
    0.2375
   ],
   [
    1791115221,
    0.236
   ],
   [
    1791158423,
    0.235
   ],
   [
    1791201622,
    0.2345
   ],
   [
    1791244822,
    0.237
   ],
   [
    1791288025,
    0.237
   ],
   [
    1791291740,
    0.237
   ]
  ],
  "1.25T–1.5T": [
   [
    1788739232,
    0.12
   ],
   [
    1788782419,
    0.12
   ],
   [
    1788825616,
    0.12
   ],
   [
    1788868819,
    0.075
   ],
   [
    1788912024,
    0.09
   ],
   [
    1788955221,
    0.1
   ],
   [
    1788998418,
    0.095
   ],
   [
    1789041619,
    0.095
   ],
   [
    1789084820,
    0.1
   ],
   [
    1789128022,
    0.085
   ],
   [
    1789171220,
    0.085
   ],
   [
    1789214421,
    0.085
   ],
   [
    1789257619,
    0.085
   ],
   [
    1789300822,
    0.12
   ],
   [
    1789344016,
    0.13
   ],
   [
    1789387215,
    0.13
   ],
   [
    1789430415,
    0.115
   ],
   [
    1789473616,
    0.11
   ],
   [
    1789516817,
    0.105
   ],
   [
    1789560024,
    0.1
   ],
   [
    1789603218,
    0.1
   ],
   [
    1789646418,
    0.105
   ],
   [
    1789689621,
    0.105
   ],
   [
    1789732822,
    0.105
   ],
   [
    1789776022,
    0.1
   ],
   [
    1789819222,
    0.1
   ],
   [
    1789862421,
    0.1
   ],
   [
    1789905618,
    0.1
   ],
   [
    1789948818,
    0.105
   ],
   [
    1789992014,
    0.105
   ],
   [
    1790035218,
    0.095
   ],
   [
    1790078418,
    0.1
   ],
   [
    1790121620,
    0.065
   ],
   [
    1790164826,
    0.07
   ],
   [
    1790208031,
    0.07
   ],
   [
    1790251220,
    0.1
   ],
   [
    1790294423,
    0.105
   ],
   [
    1790337619,
    0.11
   ],
   [
    1790380819,
    0.105
   ],
   [
    1790424018,
    0.105
   ],
   [
    1790467218,
    0.105
   ],
   [
    1790510418,
    0.105
   ],
   [
    1790553632,
    0.105
   ],
   [
    1790596817,
    0.105
   ],
   [
    1790640019,
    0.105
   ],
   [
    1790683221,
    0.105
   ],
   [
    1790726421,
    0.095
   ],
   [
    1790769620,
    0.095
   ],
   [
    1790812822,
    0.095
   ],
   [
    1790856021,
    0.095
   ],
   [
    1790899220,
    0.14
   ],
   [
    1790942420,
    0.15
   ],
   [
    1790985623,
    0.105
   ],
   [
    1791028821,
    0.1
   ],
   [
    1791072020,
    0.095
   ],
   [
    1791115222,
    0.095
   ],
   [
    1791158424,
    0.095
   ],
   [
    1791201623,
    0.095
   ],
   [
    1791244822,
    0.095
   ],
   [
    1791288026,
    0.095
   ],
   [
    1791291740,
    0.095
   ]
  ]
 },
 "license": "CC BY 4.0",
 "license_url": "https://creativecommons.org/licenses/by/4.0/",
 "attribution": {
  "required": true,
  "text": "Odds data: PolymarketTrader.com",
  "url": "https://polymarkettrader.com/odds/openai-ipo-closing-market-cap-554/",
  "html": "<a href=\"https://polymarkettrader.com/odds/openai-ipo-closing-market-cap-554/\">Odds data: PolymarketTrader.com</a>"
 },
 "source": "Polymarket public Gamma and CLOB APIs; not affiliated with Polymarket."
}
