
Yes is at 13%, about where the market opened on 19 Sep 2026.
Across the 37 daily closes on record from 19 Sep 2026 to 28 Oct 2026 (3 days in that span have no close), the highest close was 15.5% on 19 Oct 2026 and the lowest 5.5% on 9 Oct 2026. A week before that last close Yes was at 12.5%; a month before, 12.5%. Its largest one-day move was 6 points up, to 12.5% on 11 Oct 2026.
$1.21K traded in the last 24 hours. The order book holds $463.45, with a 6.0% gap between the best bid and the best ask. Across the latest 50 trades, $50.88 bought Yes and $406.99 bought No.
The largest Yes position is xtxpleasecallme with 274 shares; the largest No position is sweetj with 152.
Trading closes on 1 Jan 2027, 66 days from now.
Polymarket prices as of Oct 28, 2:06 AM UTC
Daily closes of the Yes price, Polymarket CLOB, 37 points, 19 Sep 2026 – 28 Oct 2026, chart shows 0%–20%
| Observed | Yes price |
|---|---|
| 19 Sep 2026 | 12.5% |
| 28 Oct 2026 | 12.5% |
The ten largest positions on Polymarket's public holder list.
| Trader | Outcome | Shares |
|---|---|---|
| xtxpleasecallme | Yes | 274.07 |
| sweetj | No | 151.69 |
| macrosteaks | No | 122.98 |
This market will resolve to "Yes" if the Supreme Court of the United States grants certiorari in a case concerning artificial intelligence and United States copyright law by December 31, 2026, 11:59 PM ET. Otherwise, this market will resolve to "No". A case qualifies if at least one of its claims or defenses, as described in the petition for certiorari or in the lower court's decision under review, concerns any of the following: (1) whether using copyrighted works to train, develop, or fine-tune an artificial intelligence model infringes copyright or is fair use; (2) whether outputs generated by an artificial intelligence model infringe copyright, or who is liable for such infringement; (3) whether works created in whole or in part by an artificial intelligence system are eligible for copyright protection, or who may be their author; or (4) any other claim under Title 17 of the United States Code, including the Digital Millennium Copyright Act, that arises from the training or development of an artificial intelligence model or from its outputs. An artificial intelligence model means any system that learns from data or generates content, including machine-learning and generative AI models such as large language, image, audio, and video models; the petition or decision does not need to use the words "artificial intelligence" or "AI". A grant limited to a procedural, jurisdictional, or remedial question in a qualifying case will count. A case in which an artificial intelligence developer is a party but no claim or defense concerns the matters listed above will not qualify. Granting certiorari means an order granting a petition for a writ of certiorari, including certiorari before judgment. An order that grants certiorari, vacates the lower court's judgment, and remands without further review (a GVR order) will not qualify. Denials of certiorari, orders inviting the Solicitor General to file a brief, relisting of a petition, and rulings on emergency applications or stays will not qualify. A qualifying case does not need to be pending before the Court at the time this market is created, and a qualifying grant will resolve this market to "Yes" even if the case is later dismissed, settled, or otherwise removed from the Court's docket. The grant must appear on the Supreme Court's official orders list or docket dated on or before December 31, 2026, 11:59 PM ET; the date of the Court's order governs, regardless of when reporting confirms it. The case does not need to be heard, scheduled, or decided by the deadline to qualify. The primary resolution source for this market will be official information from the Supreme Court of the United States (https://www.supremecourt.gov), including its orders lists and case dockets; however, a consensus of credible reporting may also be used.
| from00 |
| Yes |
| 100 |
| TheWindKnowsmyName | No | 53.66 |
| Maximus374 | No | 40 |
| S888 | No | 30.1 |
| allofit | Yes | 20 |
| Costly-Swell | No | 10.99 |
| PavelIslimnitsky | Yes | 7.69 |
Open a trader’s name to inspect the wallet’s available P&L, positions and recorded trades, with source dates and coverage. A large position alone does not establish a winning track record.
Official listing: polymarket.com/event/supreme-court-accepts-ai-copyright-case-before-2027
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