Coinbase, market share at an all-time high, so why did its stock price plummet 11%?

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Coinbase Global (COIN) for the first time accounted for over 10% of global cryptocurrency trading volume, but its stock price plummeted by about 11% due to poor earnings and a sluggish trading market.

According to the investment media The Motley Fool on August 1 (local time), Coinbase's second-quarter net revenue was $1.22 billion, a decrease from approximately $1.5 billion in the same period last year, marking a decline for three consecutive quarters. It also fell short of market expectations of $1.35 billion. The GAAP net loss was approximately $360 million, or $1.36 per share, significantly exceeding the market's expected loss of $0.01 per share.

On the other hand, its share of global cryptocurrency trading volume surpassed 10% for the first time, reaching 10.3%. Starting from 5.6% in Q3 2025, the market share subsequently rose for three consecutive quarters to 8.4%, 9.1%, and 10.3%. The GAAP loss decreased from $394 million in the previous quarter and approximately $667 million in Q4 last year, and adjusted EBITDA also maintained a surplus for 14 consecutive quarters.

The problem is that nearly half of its revenue still relies on cryptocurrency trading. Geopolitical instability, including the Iran conflict, and weak digital asset prices led to a double-digit decrease in global trading volume compared to the previous quarter and the same period last year, impacting fee revenue. Trading revenue in Q2 decreased by 22% to $599 million, and subscription and services revenue also fell by 12% to $555 million.

Stablecoins and the subscription business were identified as key to reducing earnings volatility. Through a partnership with Circle Internet Group, Coinbase receives 100% of the interest income from reserves of USD Coin (USDC) held on its platform and 50% of the interest income from reserves generated in external ecosystems. Related revenue decreased by 6% year-over-year to $292 million, performing relatively better than the cryptocurrency trading segment. Other subscription and services revenue, including Coinbase One, which charges $4.99 to $299.99 per month, decreased by 4% to $114 million.

The media assessed that the investment appeal of Coinbase stock is limited until its subscription and services business grows significantly to secure stable and predictable recurring revenue. As expanding global trading market share alone makes it difficult to offset the earnings impact of declining trading volume, the key to investment decisions is business diversification and actual revenue growth, rather than market share.

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