Before the U.S. stock market opened on Monday, extreme insider trading data was recorded. According to public trading disclosures, corporate executives and insiders executed a total of 1,382 sell transactions, with zero buy transactions, cashing out a total of $13.58 billion. Among all industry sectors facing a broad sell-off, only oil-related assets were spared from this wave of selling. The data distribution reveals a rare one-sided liquidity flow. Typically, post-earnings tax planning or option exercises are accompanied by a certain proportion of buy-side hedging, but the 1382:0 buy-sell ratio this time breaks the average trend of insider trading in recent years. The $13.58 billion withdrawn before the market opened directly drained liquidity from overall equity assets. This caused an inversion in the structure of the secondary market. Retail investors and passive index funds were forced to absorb the massive selling pressure after Monday's market open. Meanwhile, the oil sector, excluded from the sell-off, became the only safe haven for capital. Traditional energy companies received asymmetric premium support during this round of capital reshuffling.