Shares of Coinbase Global Inc. ( COIN ) plunged more than 16% following second-quarter results. The report fell short of expectations, raising questions about the resilience of the crypto exchange's core business—even as digital assets rallied during the same period. Despite a 3.3% year-over-year increase in revenue to $1.5 billion, results came in below Wall Street forecasts. More notably, transaction revenue—long the company’s bread and butter—dropped 39% from a year earlier, totaling $764.3 million, compared to estimates of $814 million. The shortfall points to a slowdown in trading activity, particularly among retail users, in what should have been a strong environment for digital asset platforms. While net income came in at a staggering $1.5 billion, that figure was boosted almost entirely by unrealized gains from Coinbase’s crypto holdings and strategic investments, including a stake in Circle Internet Group ( CRCL ). Adjusted net income, which strips out those gains, was jus...