Fintech stocks Upstart, Affirm, Block hit hard in market rout as persistent inflation continues Financial-technology stocks are among the biggest losers in the tech sector Tuesday after the August consumer-price index showed a surprise monthly increase, even as the year-over-year growth rate dropped to 8.3% from 8.5%. Shares of artificial-intelligence lending company Upstart Holdings Inc. are off 9.3% in Tuesday morning trading, while shares of buy-now-pay-later operator Affirm Holdings Inc. are down 8.9%. Shares of cryptocurrency exchange Coinbase Global Inc. are down 7.3% Tuesday, and shares of Square-parent Block Inc. are off 7.0%. Shares of more established payment-technology names were seeing smaller losses Tuesday, with Visa Inc.''s stock off 2.4%, Mastercard Inc.''s stock off 2.8%, and PayPal Holdings Inc.''s stock down 2.0%. The Global X Fintech ETF is off 4.1% Tuesday morning. Market Pulse Stories are Rapid-fire, short news bursts on stocks and markets as they move. Visit MarketWatch.com for more information on this news.