Resolution criteria on PolyGram: This market will resolve to "Up" if the Close price for Coinbase Global, Inc. (COIN) on May 15, 2026 is higher than the Close price for Coinbase Global, Inc. (COIN) on the most recent prior trading day. This market will resolve to "Down" if the Close price for Coinbase Global, Inc. (COIN) on May 15, 2026 is lower than the Close price for Coinbase Global, Inc. (COIN) on the most recent prior trading day. E.g., ordinarily, a market on Monday would refer to the previous Friday for its most recent closing price, unless that Friday were a market holiday, in which case it would refer to Thursday, or the next most recent trading day.
PolyGram is an on-chain prediction market where you trade YES or NO outcome shares with real USDC on Polygon. For this market, buy YES if you believe the event will happen, or NO if you think it won't. Your maximum loss is your stake — winning shares pay $1.00 each at resolution. Unlike sportsbooks, there is no house edge: prices are set by supply and demand from other traders and reflect the crowd's real-time probability.
Market outcomes
| Coinbase (COIN) Up or Down on May 15? | 50% YES | 50% NO |
Coinbase's stock price movement on 15 May 2026 will be determined by whether the closing price exceeds the prior trading day's close. The current order book on Polymarket reflects a 50-50 split, indicating genuine uncertainty amongst traders about the direction of a single-day move. This even probability suggests the market perceives no strong directional bias heading into that specific date, with neither bullish nor bearish sentiment commanding a clear edge.
Single-day equity moves of this nature typically hinge on intraday volatility rather than fundamental shifts. Historical analysis of COIN's trading patterns shows the stock experiences regular daily fluctuations of 2-4% depending on broader crypto market sentiment and macroeconomic conditions. The 50% implied probability aligns with what one would expect for a coin flip scenario when no material corporate event or market catalyst is scheduled for that particular date. Comparable prediction markets on individual stock daily movements have historically resolved near their midpoint probabilities when settlement dates lack announced earnings, regulatory decisions, or significant news.
Traders monitoring this position should track any scheduled announcements for mid-May 2026, including potential regulatory developments affecting cryptocurrency exchanges, broader equity market volatility, and Bitcoin price movements, which typically correlate with COIN's daily performance. Macroeconomic data releases and Federal Reserve communications in the days preceding 15 May could establish momentum that carries into the settlement window. The absence of a known catalyst at present supports the market's neutral positioning.
Coinbase, Inc. v. Suski, 602 U.S. 143 (2024), was a United States Supreme Court case in which the Court held that where one contract between parties sends disputes to arbitration and another contract sends disputes to courts, a court must decide which contract governs.
Coinbase, Inc. v. Bielski, 599 U.S. 736 (2023), was a United States Supreme Court case in which the Court held that a federal district court must stay its proceedings while an interlocutory appeal on the question of arbitrability is ongoing.
This market settles from the official outcome published at https://pythdata.app/explore/Equity.US.COIN%2FUSD. A proposer submits the final result to the UMA optimistic oracle on Polygon; the two-hour dispute window closes and payouts clear in USDC.
The mechanics for trading "Coinbase (COIN) Up or Down on May 15?" are the same as any other PolyGram event contract. Each YES share resolves to $1 if the event happens, or $0 if it doesn't. The current price between 0¢ and 100¢ is the market's probability estimate, set live by the order book.
$0 in lifetime turnover and $15 of resting liquidity puts this market in the below the median by volume for coin contracts on PolyGram. Order-book depth is thin — large orders may need to be split across the book or executed as limit orders.
The market has been open for under a month — fresh enough that information asymmetry remains a real factor.
Higher-volume markets tend to have tighter spreads and faster price discovery — meaning the displayed YES/NO percentages are more likely to reflect the true crowd-implied probability rather than a single trader's directional view.
As of today, traders on Polymarket price this outcome at 50%. The number updates continuously as the order book clears. PolyGram mirrors the same live odds with locale-aware formatting and USDC settlement.
Resolution is sourced from https://pythdata.app/explore/Equity.US.COIN%2FUSD. Settlement is executed by the UMA optimistic oracle on Polygon, with a 2-hour dispute window before payouts clear.
This prediction market is scheduled to close on 15 May 2026. After the resolving event occurs, settlement typically clears within 24 hours once the UMA optimistic oracle confirms the outcome. All payouts are in USDC on the Polygon network.
To trade on this prediction market, create a free PolyGram account at polygram.ink, deposit USDC via Polygon, and place a YES or NO order on the outcome you believe in. You can learn more on our how-it-works page. Your maximum loss is limited to your stake — there is no leverage or margin.
When the outcome is determined, winning YES shares pay out $1.00 each in USDC, while losing shares pay $0. Settlement is handled by the UMA optimistic oracle on Polygon — a proposer submits the result, a two-hour dispute window opens, and if uncontested, payouts are distributed automatically. You can withdraw your winnings to any Polygon wallet.
Prediction-market positions can lose 100% of staked capital. Outcomes are uncertain by definition — historical accuracy of crowd-implied probabilities is high in aggregate but not for any single market. PolyGram does not provide investment advice. Trade only with capital you can afford to lose.
Regulatory status varies by jurisdiction. Germany, the United States, and most EU countries treat Polymarket-style event contracts under one of three frameworks: financial derivative, gambling product, or unregulated novel asset. Consult local counsel before trading.
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