There are 3 known instances where the Nasdaq rose more than 10% in a single day.

First time: January 3, 2001, rise of 14.17%
Event Background: This is the largest single-day rise in Nasdaq history, occurring during the recovery period after the internet bubble burst. After the tech stock crash in 2000, market sentiment was extremely bleak. In early 2001, the Federal Reserve unexpectedly cut interest rates, boosting investor confidence, especially in tech stocks. The Nasdaq index surged significantly on this day but subsequently failed to maintain its upward momentum, eventually hitting a lower point in October 2002 (1108.49).

Second time: October 13, 2008, rise of 11.81%
Event Background: During the global financial crisis, the market was extremely volatile due to events such as the bankruptcy of Lehman Brothers. On that day, the U.S. government and the Federal Reserve announced a series of rescue plans, including injecting capital into the banking system to stabilize the financial markets. Investor optimism about policy intervention drove a rebound in the stock market, particularly in the tech-heavy Nasdaq.

Third time: April 9, 2025, rise of 12%
Event background: Global trade war, Trump suspends tariffs for 90 days on over 75 countries.