Circle's stablecoin business is booming, but many investors ran for the exits in August anyway. Here's what spooked them.Shares of Circle Internet Group (CRCL -8.71%) took a 28.1% hit in August 2025, according to data from S&P Global Market Intelligence. The group behind the USDC (USDC 0.00%) stablecoin posted its first earnings report as a public company in the middle of the month, and it wasn't strong enough to support Circle's early price jump.Circle's earnings landed with a thudFrom the initial public o ...