Sharplink Gaming's stock plunged 67% in after-hours trading following a misunderstood SEC filing. The sports betting firm filed an S-3 registration, which many investors misinterpreted as a major stock sell-off, causing panic. This reaction came shortly after Sharplink announced plans to build a $1 billion Ethereum treasury, initially boosting its stock price. Joseph Lubin, Chairman of Sharplink and CEO of Consensys, clarified that the filing was a standard procedure for potential resale by prior PIPE investors, not an indication of actual sales. Despite reassurances, the market remained jittery, with the stock dropping from $32.53 to as low as $8 before slightly recovering. The incident underscores the volatility in crypto-linked stocks and the impact of misunderstood legal filings.