Crypto reserve and tariff policy frame Sunday's closed-market news

U.S. markets remained closed for the weekend, with QQQ and SPY carrying Friday's closing levels of $503.05 and $588.10. President Trump announced plans for a U.S. crypto reserve. Warren Buffett said tariffs act as a tax on goods and can hurt consumers, while a 25% tariff on goods from Mexico and Canada was due to take effect on March 4. China's February Caixin manufacturing PMI was 50.8, above the 50.4 estimate and January's 50.1. Trump also criticized a U.K. order seeking access to Apple's encrypted cloud storage.