U.S. filing on 10 December 2025 proposes Bitcoin ETF limited to after-hours trading

On 10 December 2025, a filing outlined an ETF that would gain Bitcoin exposure only after regular U.S. equity trading hours and exit the position by the next morning. The strategy is based on historical data indicating stronger Bitcoin performance in late-evening and overnight sessions. Analysts describe it as part of broader financial-engineering experiments in the ETF space and position it as a specialized complement to existing spot Bitcoin ETFs.