According to BlockBeats, on February 21, altcoins followed the broader market trend and experienced a widespread decline. Previously strong high market cap cryptocurrencies such as OP saw their 24-hour drop exceed 10%. Specifically, OP's current price is $3.62, with a 24-hour decline of 11.98%. NEAR's current price is $3.11, with a 24-hour decline of 8.98%. AVAX's current price is $36.44, with a 24-hour decline of 6.68%. SOL's current price is $101.71, with a 24-hour decline of 6.69%.

This decline in altcoins comes amidst a broader market downturn, affecting various cryptocurrencies across the board. Investors should be cautious and monitor market trends closely to make informed decisions regarding their cryptocurrency investments.