Proshares, a leading issuer of exchange-traded funds (ETFs), has introduced two new Bitcoin-focused products: the Ultra Bitcoin ETF (ticker: BITU) and the Ultrashort Bitcoin ETF (ticker: SBIT). These are the first leveraged and inverse ETFs in the United States that target spot Bitcoin exposure, marking a significant expansion in the cryptocurrency ETF landscape.
BITU and SBIT: Doubling Down on Bitcoin
According to Proshares' official statement, BITU seeks to deliver twice the daily return of Bitcoin, while SBIT aims to provide twice the inverse daily return of Bitcoin. For example, if Bitcoin rises 1% in a day, BITU would be expected to gain 2% (before fees). Conversely, if Bitcoin falls 1%, SBIT would be expected to gain 2%. Both ETFs carry an expense ratio of 95 basis points (0.95%), consistent with other Proshares products.
Bloomberg senior ETF analyst Eric Balchunas commented on X: “The first-ever 2x and -2x spot Bitcoin ETFs hit the market today from Proshares. BITU and SBIT (tickers could have been better). BITX is 2x but it tracks futures, and BITI is -1x but also futures. Fee 95bps on both. Haven’t traded too much so far, under $1m.”
Proshares’ ETF Evolution
Proshares has been a pioneer in the crypto ETF space. In October 2021, the firm launched the first Bitcoin futures ETF in the U.S. (BITO), which ignited a wave of crypto ETF filings. Since then, Proshares has rolled out a short Bitcoin futures ETF (BITI), a short Ether futures ETF (SETH), an Ether performance ETF (EETH), and a combined Bitcoin and Ether ETF (BETE). All of these products utilized futures contracts rather than holding the underlying crypto assets directly. The new BITU and SBIT are the first to aim for spot Bitcoin-linked exposure through swaps, futures, and other derivatives, but they still do not hold Bitcoin directly.
Proshares CEO Michael L. Sapir explained: “BITU and SBIT are designed to address the challenge of acquiring leveraged or short exposure to Bitcoin, which can be onerous and expensive. BITU offers investors the opportunity to pursue magnified Bitcoin returns or target a level of exposure with less money at risk. SBIT allows investors to seek to profit when the price of Bitcoin drops or hedge their Bitcoin exposure.”
Market Reactions and Risk Considerations
Leveraged and inverse ETFs are high-risk, high-volatility instruments intended for short-term trading rather than long-term holding. Due to the daily reset mechanism, long-term investors may experience path dependence and volatility decay, causing actual returns to diverge significantly from the target multiple. Proshares warns that these products are not suitable for all investors and that a strong understanding of the underlying mechanics is essential.
On their first trading day, BITU and SBIT combined saw relatively modest volume, under $1 million. Analysts believe that as the market becomes more familiar with these novel tools, trading activity may increase. The introduction of such products adds depth and diversity to the Bitcoin market but could also amplify short-term price swings.
Nonetheless, Proshares has once again positioned itself at the forefront of crypto ETF innovation, offering investors more sophisticated tools for risk management and return enhancement. The industry will be watching closely to see how these products evolve.

