The S&P 500 index fell for the fifth day in a row Thursday, ending the week 1.7% lower than it began. Cryptocurrency markets are also down this week, with a combined market valuation of $2.2 trillion today, down from $2.43 trillion on Sunday. According to CoinGecko, Bitcoin has dropped 3% in the previous 24 hours, Ethereum has dropped 7%, and Solana, which had seemed immune to market declines in recent weeks, has dropped 9%.