BlackRock’s iShares 0-3 Month Treasury Bond ETF, known by its ticker SGOV, has swelled to roughly $98.5 billion in assets as of mid-July 2026. That puts it within spitting distance of becoming the first ultra-short bond ETF to crack the $100 billion threshold.
To put that number in perspective, SGOV is now more than double the size of its closest rival, the SPDR Bloomberg 1-3 Month T-Bill ETF (BIL), which sits at approximately $46.8 billion in assets under management. What started as a modest cash-parking vehicle launched in May 2020 has quietly become one of the most important funds in fixed income.
A fund that eats competitors for breakfast
SGOV has attracted $28.9 billion in net inflows just in the year to date through mid-July 2026. That’s not a typo. Nearly $29 billion in fresh capital has flowed into a single fund that essentially buys the shortest-dated US government debt available.
The fund now ranks as the third-largest fixed-income ETF in the entire US market. Only the Vanguard Total Bond Market ETF (BND) and the iShares Core US Aggregate Bond ETF (AGG) sit above it. SGOV does one thing: it holds Treasury bills maturing in zero to three months, tracking the ICE 0-3 Month US Treasury Securities Index.
