Odaily Planet Daily News: According to BitMart's market report on May 21st, the total market value of the cryptocurrency market is $3.39 trillion, up 0.76% from the previous day; BTC's intraday volatility eased, with a temporary drop reaching $102000 before rebounding to the $106000 mark. High volatility may be the main trend for Bitcoin in the near future; Yesterday, BTC ETF had a net inflow of 361 million US dollars; ETH followed the rise and fall of the market, falling below $2400 at one point during trading, and then rebounded to break through the $2500 mark; The inflow and outflow data of ETH ETF yesterday were almost negligible. In terms of market sentiment, the fear and greed index is 69, continuing to be in the "greed" range; The overall long short ratio is 1.18, with bullish sentiment dominating; The rise and fall of altcoins are mixed, and the seasonal index of altcoins has further fallen to 23; Investors are advised to closely monitor the subsequent flow of funds and emotional changes.