US Stock Market Plunges in First 10 Minutes: Suspected Informed Whale Precisely Adds $147 Million Short Position, Briefly Profits $3.6 Million

June 10, per Hyperinsight monitoring (Hyperinsight monitoring), a whale on the Hyperliquid platform built a leveraged short position on the S&P 500 overnight at 50x leverage. The whale completed its position building by 21:50 last night, holding 20,000 contracts equivalent to roughly $147 million at an average price of $7,428. During the final batch of position additions, the S&P 500 was trading around $7,466—nearly its recent peak at the time. Just 10 minutes after wrapping up the position build, the U.S. stock market made a sharp U-turn, with the S&P 500 dropping more than 3.1% over two hours. The short position briefly reached an unrealized profit of $3.6 million; as of press time, the position remains open, with unrealized gains narrowing slightly, likely as traders wait for upcoming key data. Fundamentally, the recent steep decline is traced to two major bearish triggers: First, U.S. officials signaled plans for a second military strike on Iran, spiking geopolitical risk. Second, a SemiAnalysis report cited delays in related production capacity, weighing on the U.S. stock’s "light" and "electric" sectors. The market is eagerly awaiting the U.S. May Consumer Price Index (CPI), scheduled for release tomorrow at 20:30 Beijing time. Following last week’s stronger-than-expected nonfarm payrolls data, this CPI print will further confirm whether inflation is picking up, a critical factor shaping expectations for the Federal Reserve’s interest rate cut path. Address: 0x97f8219e401f07752a60ddb0a75efda96d1389d9