
Yes is at 94.5%, up 20 points from 74.5% when the market opened on 5 Sep 2026.
The high was 94.5% on 8 Oct 2026 and the low 74.5% on 5 Sep 2026. A week ago Yes was at 89.5%; a month ago, 85.5%. Its largest one-day move was 7.5 points up, to 93% on 10 Sep 2026.
It is one of 3 markets under “Meta's "Watermelon" model released by...?”.
$108.23 traded in the last 24 hours, out of $12.26K since listing. The order book holds $2.07K, with a 3.0% gap between the best bid and the best ask. Across the latest 164 trades, $4.33K bought Yes and $286.03 bought No; the largest was a $1.5K buy of Yes at 86.3¢.
The largest Yes position is Contentious-Dinnerdate with 1.7K shares; the largest No position is 0xdc3E831cad with 2.9K. Ten wallets hold 80% of the shares on Polymarket's public holder list.
Trading closes on 30 Nov 2026, 53 days from now.
Polymarket prices as of Oct 9, 8:21 AM UTC
Daily closes of the Yes price, Polymarket CLOB · 36 points · 5 Sep 2026 – 9 Oct 2026 · axis zoomed to 70%–100%
| Observed | Yes price |
|---|---|
| 5 Sep 2026 | 74.5% |
| 9 Oct 2026 | 94.5% |
The ten largest positions on Polymarket's public holder list.
| Trader | Outcome | Shares |
|---|---|---|
| 0xdc3E831cad | No | 2.9K |
| Contentious-Dinnerdate | Yes | 1.75K |
| KimchiCapital | Yes | 783.49 |
On September 2, 2026, alongside the launch of Muse Spark 1.3, Meta announced a roadmap "including bigger models" (https://research.meta.ai/blog/introducing-muse-spark-1-3). Credible reporting has identified Meta's next-generation frontier model by the internal codename "Watermelon." This market will resolve to "Yes" if Meta releases "Watermelon" or a model confirmed to be the model referenced above, and that model is made available to the general public by the listed date (ET). Otherwise, this market will resolve to "No". A qualifying model must be named "Watermelon" or be identified, by Meta or by a consensus of credible reporting, as the model internally codenamed "Watermelon," regardless of the name under which it is ultimately released. A qualifying model must be launched and publicly accessible, including via open beta or open rolling waitlist signups. A closed beta or any form of private access will not suffice. The release must either be clearly defined and publicly announced by Meta as accessible to the general public, or otherwise be made publicly accessible and explicitly labeled on the company's official website. Labeling errors, placeholder text, or version names displayed on the website that do not correspond to a model that is actually accessible to the general public will not qualify. The primary resolution source for this market will be official information from Meta, with additional verification from a consensus of credible reporting.
Official listing: polymarket.com/event/metas-watermelon-model-released-byptptpt
| Safe-Crosscontamination | Yes | 493 |
| M8880 | Yes | 445.41 |
| Bodytobody | No | 352 |
| cigarettes | Yes | 310 |
| maybebrian | No | 166.67 |
| AJSV | No | 165.63 |
| tradetosurvive1 | No | 161.82 |
Every wallet's public record, and 80,000 ranked by lifetime P&L: Polymarket leaderboard
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