The market on whether SpaceX’s Starship Flight Test 13 will launch by July 23 experienced a dramatic shift, with the YES contract price plunging from 86.5% to 53.5% over the past 24 hours, a 33.0 percentage point decline. This swing signals a substantial drop in market confidence on the launch occurring by the specified date.
However, the price movement diverges from whale trading behavior. Despite the sharp price drop, whale flow did not follow the downward trend, indicating that large traders were not driving the sell-off. Instead, whale activity moved against the price direction, suggesting a disconnect between large bets and the broader market sentiment reflected in the contract price.
Trading volume in the last 24 hours reached $15K, reflecting moderate activity around this event.
This combination of a steep decline in the YES price alongside opposing whale flow points to uncertainty and mixed signals about the likelihood of the Starship Flight Test 13 launching on time. Market participants appear divided, with large traders maintaining a different stance than the general market consensus reflected in the price.
| Market | Will SpaceX Starship Flight Test 13 launch by July 23? |
|---|---|
| Market ID | 2954495 |
| 24h price change | +33.0 pp |
| YES now (PM Breaking) | 53.5% |
| YES ~24h ago (est.) | 86.5% |
| YES (Polydata overview) | — |
| Whale net flow (24h) | $0 |
| Whale buy / sell (24h) | — / — |
| Unique whales (24h) | — |
| Volume 24h (PM) | $15K |
| Unique traders (Polydata) | — |
Source: Polydata API v3 · /whales/flow + Polymarket Breaking · snapshot 2026-07-20. Data: Polydata API v3. On-chain figures are public. Realized PnL is computed over resolved markets only and excludes open positions, so it is conservative versus the Polymarket UI. This is not investment advice.