Fidelity Investments takes 8% of the capital of Riot Platforms

Investment giant Fidelity – with some $6.4 trillion in assets under management as of June 2025 – has disclosed an 8% stake in Texas-based bitcoin miner Riot Platforms (Nasdaq: RIOT), according to SEC filings.

Fidelity held shares of Riot prior to the September 29 filing date in quantities below the 5% reporting threshold, according to previous SEC filings.

Riot recently announced record third-quarter revenue of $180.2 million, producing 1,406 BTC during the quarter. It also initiated development of 112 megawatts (MW) for AI/HPC loads at its Corsicana facility. Riot reported revenue of $180.2 million for the third quarter of 2025, more than double the $84.8 million for the same period in 2024.

Riot operates one of the largest Bitcoin mining fleets in the United States at 36.6 EH/s and mined 437 BTC last month.

At press time, Riot was down 2.9% at $18.72.