On October 11th, Beijing time, following Trump's threat to impose tariffs, the collective market capitalization of U.S. tech behemoths took a massive hit, plummeting by a staggering $770 billion (approximately 5.5 trillion yuan) on Friday. Stocks of Amazon, NVIDIA, and Tesla all witnessed a roughly 5% decline, triggering a 3.6% drop in the Nasdaq Composite Index and a 2.7% fall in the S&P 500 Index. These losses represent the steepest single-day declines since April of this year. At the close of September, NVIDIA made history by becoming the inaugural company to hit a market capitalization of $4.5 trillion. However, its market value took a significant tumble, shedding nearly $229 billion on Friday. Tesla, Amazon, and Microsoft also suffered substantial losses, with their market caps dwindling by $71 billion, $121 billion, and $85 billion, respectively. Meanwhile, shares of Alphabet (Google's parent company) and Meta (Facebook's parent company) slid by 2% and nearly 4%, correspondingly. In after-hours trading, the stocks of Amazon, NVIDIA, and Tesla continued their downward trajectory, falling by an additional 2% or so.