Circle Internet Corp. (CRCL) shares plummeted 5.06% during intraday trading on Wednesday, as the stablecoin issuer faced a combination of competitive pressures and broader market headwinds.

The decline followed reports that cryptocurrency exchange Coinbase may join the stablecoin platform space, potentially introducing new competition for Circle's USDC stablecoin. This news added to existing concerns about regulatory challenges for stablecoins, particularly in the UK where authorities have warned that strict Bank of England rules could hinder the growth of pound-backed tokens.

Broader weakness in the cryptocurrency market also contributed to the selloff, with Bitcoin continuing its decline as capital flows shift toward artificial intelligence equities. The crypto sector has been under pressure with postponed IPO plans and record outflows from Bitcoin exchange-traded funds, creating a challenging environment for digital asset companies like Circle.