Performance marketing company QuinStreet (NASDAQ:QNST) announced better-than-expected revenue in Q2 CY2026, with sales up 42.7% year on year to $373.9 million. On top of that, next quarter’s revenue guidance ($375 million at the midpoint) was surprisingly good and 4.5% above what analysts were expecting. Its non-GAAP profit of $0.50 per share was 13.2% above analysts’…