[Bloomberg Analyst: Investors Flock to U.S. Treasury ETFs, Cash May Become the 'Last Safe Haven'] Deep Tide TechFlow reports that on March 31, Bloomberg senior ETF analyst Eric Balchunas stated on the X platform that amid a backdrop of declining U.S. stock markets and underwhelming gold performance (the breakdown of their 'zero correlation' surprised the market), investors are pouring into U.S. Treasury ETFs. In March, U.S. Treasury ETFs saw a net inflow of approximately $30 billion, more than double the recent monthly average, primarily concentrated in ultra-short-term products like SGOV and BIL. However, the current market seems to lack many suitable 'safe-haven assets' for investment, making holding cash and patiently observing a potentially better strategy. Earlier reports revealed that Buffett disclosed Berkshire Hathaway's purchase of $17 billion worth of U.S. Treasuries this week.