The market on whether SpaceX Starship Flight Test 13 will launch by July 17 saw a dramatic shift in sentiment, with the YES price collapsing 75.0 percentage points from approximately 81.5% to 6.6% over 24 hours. This sharp decline signals a major reassessment of the launch probability by the broader market.
Contrary to the price plunge, whale activity diverged from the downward price move. Large traders collectively bought $34K worth of YES contracts while selling $12K, resulting in a net inflow of $23K into YES positions. This flow divergence indicates that while smaller traders or the tape pushed prices down sharply, whales maintained or increased their exposure to the launch occurring.
The 24-hour trading volume for this market was $26K on Polymarket, nearly matching the lifetime market volume of $27K recorded by Polydata, underlining a surge in recent trading interest. A total of 75 unique whales participated in the last 24 hours, among 148 unique traders overall, showing broad engagement from large and retail participants alike.
This juxtaposition of a steep drop in odds alongside sustained whale buying suggests a split in conviction between different market segments. The combined price and flow data highlight a contested market view on the SpaceX Starship Flight Test 13 launch timing as of July 17.
| Market | Will SpaceX Starship Flight Test 13 launch by July 17? |
|---|---|
| Market ID | 2911983 |
| 24h price change | +75.0 pp |
| YES now (PM Breaking) | 6.6% |
| YES ~24h ago (est.) | 81.5% |
| YES (Polydata overview) | 6.6% |
| Whale net flow (24h) | $23K |
| Whale buy / sell (24h) | $34K / $12K |
| Unique whales (24h) | 75 |
| Volume 24h (PM) | $26K |
| Unique traders (Polydata) | 148 |
Source: Polydata API v3 · /whales/flow + Polymarket Breaking · snapshot 2026-07-17. 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.