ProShares Ultra Bitcoin ETF (BITU) offers 2x daily exposure to the Bloomberg Bitcoin Index via swaps and charges a 0.98% expense ratio. Because BITU resets daily, volatility decay and compounding materially penalize buy-and-hold investors in choppy markets: year-to-date Bitcoin is down ~10% while BITU is down ~31%, and over the trailing year BTC is down ~17% vs BITU down ~53%. BITU can approximate 2x in clean trending rallies but multi-day/volatile drawdowns and swap financing/funding costs create a persistent downside drag that can nearly wipe out a 2x product in large drawdowns.

Facts: BITU is a 2x daily swap-based fund with a 0.98% expense ratio; daily resets cause volatility decay and compounding losses in choppy markets; YTD performance shows BTC ~-10% vs BITU ~-31%, and trailing-year BTC ~-17% vs BITU ~-53%; swap financing and funding costs add an ongoing headwind. These facts explain bearish outlook for BITU relative to BTC and represent actionable information for leveraged-ETF traders.