As of October 24, 2026, 06:35 PM ET, Polymarket traders price OpenAI at 62.5% in Second-best Code Arena WebDev AI Lab end of November? — $33.1K traded so far.
The leading outcome, OpenAI, is priced at 62.5%.
Price changes for the leading market — 24 hours: +4.0 pts; past week: +4.0 pts; past month: +19.0 pts.
Since September 18, 2026, OpenAI has traded between 17.5% and 68.5%. It opened at 17.5% and last traded at 62.5%.
| Day | Close |
|---|---|
| Oct 16, 2026 | 56.0% |
| Oct 18, 2026 | 58.0% |
| Oct 19, 2026 | 58.0% |
| Oct 20, 2026 | 57.5% |
| Oct 22, 2026 | 57.0% |
| Oct 23, 2026 | 58.5% |
| Oct 24, 2026 | 62.5% |
OpenAI is favored at 62.5%.
| Outcome | Price | Implied probability | 24h change | Volume | Volume share |
|---|---|---|---|---|---|
| OpenAI | 62¢ | 62.5% | +4.0 pts | $9.9K | 30.0% |
| Other | 50¢ | 50.0% | +0.0 pts | $0 | 0.0% |
| Company A | 50¢ | 50.0% | +0.0 pts | $0 | 0.0% |
| Company B | 50¢ | 50.0% | +0.0 pts | $0 | 0.0% |
| Company C | 50¢ | 50.0% | +0.0 pts | $0 | 0.0% |
| Company D | 50¢ | 50.0% | +0.0 pts | $0 | 0.0% |
| Company E | 50¢ | 50.0% | +0.0 pts | $0 | 0.0% |
| Company F | 50¢ | 50.0% | +0.0 pts | $0 | 0.0% |
| Company G | 50¢ | 50.0% | +0.0 pts | $0 | 0.0% |
| Company H | 50¢ | 50.0% | +0.0 pts | $0 | 0.0% |
| Company I | 50¢ | 50.0% | +0.0 pts | $0 | 0.0% |
| Company J | 50¢ | 50.0% | +0.0 pts | $0 | 0.0% |
| Company K | 50¢ | 50.0% | +0.0 pts | $0 | 0.0% |
| Company L | 50¢ | 50.0% | +0.0 pts | $0 | 0.0% |
| Company M | 50¢ | 50.0% | +0.0 pts | $0 | 0.0% |
| Anthropic | 19¢ | 19.0% | +1.0 pts | $8.7K | 26.4% |
| 10¢ | 10.1% | -0.2 pts | $1.6K | 4.8% | |
| Alibaba | 4¢ | 3.7% | — | $971 | 2.9% |
| SpaceXAI | 3¢ | 2.8% | — | $1.2K | 3.6% |
| Moonshot | 2¢ | 2.5% | +0.4 pts | $999 | 3.0% |
| Z.ai | 2¢ | 2.5% | — | $1.2K | 3.5% |
| Meta | 2¢ | 2.3% | — | $1.3K | 3.9% |
| Tencent | 1¢ | 0.5% | — | $1.0K | 3.1% |
| Xiaomi | 0¢ | 0.3% | — | $1.2K | 3.6% |
| ByteDance | 0¢ | 0.1% | — | $914 | 2.8% |
| DeepSeek | 0¢ | 0.1% | — | $841 | 2.5% |
| Poolside | 0¢ | 0.1% | — | $969 | 2.9% |
| Mistral | 0¢ | 0.1% | — | $1.1K | 3.3% |
| MiniMax | 0¢ | 0.1% | — | $845 | 2.6% |
| Thinky | 0¢ | 0.1% | — | $384 | 1.2% |
See the full live book for this market on Polymarket
The leading market's spread is 1¢ (bid 62¢ / ask 63¢) — a tighter spread means cheaper round-trip trading.
$33.1K has been traded on this event in total, $663 of it in the last 24 hours, across 30 markets.
This market is scheduled to end November 30, 2026, 11:59 PM ET.
This market will resolve according to the second-highest ranked Company based on the arena.ai Code Arena | WebDev Leaderboard when the table under "Code Arena | WebDev" filtered for "Labs" is checked on November 30, 2026, 12:00 PM ET. Results from the "Lab Rank" column under the "Code Arena | WebDev" Leaderboard tab at https://arena.ai/leaderboard/code/webdev?rankBy=labs (Overall) filtered for "Labs" will be used to resolve this market. Note: Models marked “AutoEval” at the applicable check time will not be considered, regardless of whether they display a rank or score. AI companies will be ordered primarily by their Lab Rank at the market’s check time. If the results based on the lab ranking are ambiguous or unavailable, the relevant AI companies will be ordered according to their highest-ranking AI model in the leaderboard’s “Models” view. If two or more models are tied on rank, they will be ordered by which model is listed higher on the leaderboard. If a tie still remains, alphabetical order of AI lab/company names as listed in this market group will be used as a final tiebreaker (e.g., “Google” would be ranked ahead of “SpaceXAI”). This market will resolve based on the company that occupies second place under this ranking. The resolution source for this market is the arena.ai Code Arena | WebDev Leaderboard. … (condensed)
Resolution source: https://arena.ai/leaderboard/code/webdev?rankBy=labs
The largest current holder of the leading market holds 1,033 shares of No.
| Holder | Outcome held | Shares | Value at current price |
|---|---|---|---|
| 0xa5ef39c3… | No | 1,033 | $387 |
| All-Calculator | Yes | 377 | $235 |
| Triangular-Genre | Yes | 318 | $199 |
| Sore-Pitching | Yes | 212 | $132 |
| Shameful-Ram | Yes | 190 | $119 |
| Silver-Eyebrows-Instruction | Yes | 172 | $108 |
| Arid-Cinema | No | 150 | $56 |
| Silent-Raffle | Yes | 105 | $66 |
| Belated-Glue | No | 74 | $28 |
| Direct-Chainstay | No | 45 | $17 |
| Time | Outcome | Side | Price | Size |
|---|---|---|---|---|
| Oct 24, 05:14 PM ET | No | SELL | 37.0% | $11 |
| Oct 24, 03:24 PM ET | Yes | BUY | 60.2% | $66 |
| Oct 24, 03:24 PM ET | Yes | BUY | 62.0% | $12 |
| Oct 24, 03:24 PM ET | Yes | BUY | 62.0% | $12 |
| Oct 24, 08:28 AM ET | Yes | SELL | 57.0% | $6 |
| Oct 24, 07:40 AM ET | No | BUY | 82.0% | $16 |
| Oct 24, 07:40 AM ET | No | BUY | 78.0% | $32 |
| Oct 24, 07:30 AM ET | No | BUY | 77.0% | $15 |
| Oct 24, 04:19 AM ET | No | SELL | 39.0% | $8 |
| Oct 24, 03:10 AM ET | Yes | BUY | 22.0% | $5 |
As of October 24, 2026, 06:19 PM ET, the leading outcome is OpenAI at 62.5%. Next is Other at 50.0%. See the live book on Polymarket: https://polymarket.com/event/second-best-code-arena-webdev-ai-lab-end-of-november?via=bro
$33.1K in total volume, with $663 traded in the last 24 hours across 30 markets.
The market is scheduled to end November 30, 2026, 11:59 PM ET. It resolves based on https://arena.ai/leaderboard/code/webdev?rankBy=labs.
OpenAI, priced at 62.5% as of October 24, 2026, 06:19 PM ET. Prices are implied probabilities backed by real-money trading.
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