$9mn Polymarket Bet on Spain Lands Minutes Before Kickoff

The bet hit, generating roughly $9mn in profit. Whether that reflects luck, edge or something more troubling is a question the onchain data raises but cannot answer. What it can show is how the capital was staged weeks in advance, activated shortly before the game, then routed back through the same wallet infrastructure after the market resolved.

Two bets, one view

The account, operating under the name "fishalive," placed two large, correlated bets on 15 Jun. Both expressed the same view: that Spain would fall short of market expectations. The first was on the market: "Will Spain win on 2026-06-15?" The account bought 4.74mn "No" shares at roughly $0.09 each, putting up about $428,000 for an implied payout of roughly $4.3mn.

The second was in the "Spread: Spain (-2.5)" market, where the account backed Cabo Verde +2.5 – effectively betting that Spain would fail to win by three goals or more. The account bought 8.54mn shares at roughly $0.44. That position cost about $3.8mn and carried an implied payout of roughly $4.8mn.

Together, the two trades represented a concentrated bet on Spain underperforming. It paid off. By the time the game ended, the account showed $9,063,378 in profit.

Capital was staged

The funding trail makes the trade more notable. The funds trace back to a Coinbase hot wallet – an exchange-controlled wallet kept online to process customer transactions – which had previously funded four feeder wallets. Some of those had been funded about a month earlier, another around two weeks earlier. On 8 Jun, the feeder wallets consolidated into two staging wallets. Then the capital sat idle for roughly a week.

On 15 Jun, less than 70 minutes before kick-off, it moved again. At 14:51:23UTC, Staging Wallet A sent $2.8mn to the collection wallet, the address that would soon fund the Polymarket account. Less than an hour later, at 15:36:47UTC, Staging Wallet B sent another $1.98mn to the same address.

Between 14:54 and 15:50UTC, the collection wallet pushed roughly $4.29mn into the Polymarket account across multiple transactions. Around 15:59UTC, the account placed its bets – just minutes before kick-off.

Proceeds moved fast

After the market resolved, funds moved out quickly. The first observed outflow from the Polymarket account occurred at 18:41:15UTC, shortly after the game ended. In total, 13.8mn USDC – the dollar-pegged stablecoin issued by Circle – was observed leaving the account. Of that, 13.3mn USDC has been traced onwards through the same wallet network used before the bet. That figure represents gross proceeds – original capital plus winnings – not pure profit.

The post-win path retraced part of the original funding route. Funds moved from the Polymarket account back to the collection wallet, then to Staging Wallet B and finally to Feeder Wallet D, one of the wallets that helped fund the trade in the first place. As far as the trace currently goes, the funds have not been observed off-ramping back to Coinbase. The current traced endpoint is Feeder Wallet D.

Intent stays unclear

Onchain data cannot prove intent. It cannot show what the bettor knew, who controlled the wallets, or whether any non-public information was involved. A Coinbase-funded wallet does not identify a specific person; exchange hot wallets serve many users. The pattern is striking. The conclusion is not.

Still, the timing and sizing are difficult to ignore. This was not a casual account slowly building a position. It was a newly funded account that received millions shortly before kick-off, placed two large correlated bets on Spain underperforming against heavy odds, won, then routed the gross proceeds back through part of the same wallet network used beforehand.

Prediction markets produce spectacular losers, too. In the same event, another wallet reportedly bet around $1mn on Spain to win, chasing a potential payout of roughly $80,000 – only to lose.