Last Friday, from the perspective of the US stock market concept fund KWEB, Trump's tariff policy may have been leaked in advance. Ultimately, after the market closed, Trump officially threatened to impose significant tariffs on our country. Before the official announcement of the tariff increase, the concept fund KWEB listed in the US stock market saw a maximum drop of about 8%. On Friday, around 23:00 Beijing time, the S&P 500 index, $Chinese Internet Index ETF-KraneShares(KWEB)$ began to decline, and by 23:30, KWEB had dropped by about 6%, which can be considered a crash; at that moment, the specific reason was unknown, and out of risk control, I liquidated some positions, such as a profit of $12,000 related to Alibaba, a profit of $9,300 from KWEB options, and a profit of over $900 from the bullish options of $Tencent Music(TME)$, as well as a profit of over $700 from the bullish options of the CSI 300 ASHR.