Grok Dominates Coinbase's AI Trading with 60% Share, but Which Coins Are Being Bought?

Grok, the AI chatbot created by Elon Musk's xAI, has become the leading client for agentic traders on Coinbase, accounting for about 60% of AI agent trading activity on the platform from September 14 to September 21, 2026. This news comes after Coinbase's CEO Brian Armstrong announced that Grok is the frontrunner in automated trading on the exchange. While the platform has not disclosed which coins these AI agents buy, it is clear that they are playing a significant role in the cryptocurrency market.

According to data, Grok holds a commanding lead with about a 60% share of agentic trader activity on Coinbase, followed by custom command-line tools developed by users at 22%, Claude at 13%, Perplexity at 3.5%, and ChatGPT at 1.5%. This distribution shows that Coinbase is already organizing agent trading activity by the AI programs that power them.

Armstrong emphasized the significance of software in executing orders on the largest U.S. crypto exchange, raising the question of which coins these AI agents are buying. However, Coinbase has not provided any information on how agent trading activity breaks down by specific cryptocurrencies, leaving investors to wonder whether any token beyond USDC stands to benefit.