The Polymarket contract asking if SpaceX Starship Flight Test 13 will launch by July 17 saw a dramatic collapse in YES odds over the last 24 hours, plunging 86.9 percentage points from 87.0% to just 0.15%. This massive repricing occurred despite net whale buying of $28K into YES contracts during the same period, with whale buy volume totaling $47K against $19K in sells.
The market’s total 24-hour volume was $50K, nearly matching its lifetime volume of $54K, pointing to intense recent trading activity. Eighty-two unique whales participated in the flow, alongside 172 unique traders overall, illustrating a broad engagement from large and retail participants alike.
Notably, this price move and whale flow diverged sharply, as the large bets on YES contrasted with the market’s steep drop in YES price. Such a disconnect suggests conflicting signals between the tape and whale conviction, with retail or smaller traders likely driving the price down despite whale accumulation.
This divergence complicates interpreting market sentiment on the Starship launch timing question. While whales increased exposure to a July 17 launch, the contract’s price action reflects mounting skepticism or fresh information pushing probabilities toward a no-launch scenario. The combination signals a contested outlook rather than a consensus among Polymarket participants.
| Market | Will SpaceX Starship Flight Test 13 launch by July 17? |
|---|---|
| Market ID | 2911983 |
| 24h price change | +86.9 pp |
| YES now (PM Breaking) | 0.15% |
| YES ~24h ago (est.) | 87.0% |
| YES (Polydata overview) | 0.15% |
| Whale net flow (24h) | $28K |
| Whale buy / sell (24h) | $47K / $19K |
| Unique whales (24h) | 82 |
| Volume 24h (PM) | $50K |
| Unique traders (Polydata) | 172 |
Source: Polydata API v3 · /whales/flow + Polymarket Breaking · snapshot 2026-07-18. 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.