BlackRock is starting a fund targeting some of the shortest-dated Treasuries.

The iShares 0-3 Month Treasury Bond ETF invests in securities maturing in three months or less and begins trading Thursday on the NYSE Arca exchange under the ticker SGOV, according to a statement.

The new fund helps round out BlackRock’s Treasury ETF lineup, which now spans nearly every maturity segment on the U.S. yield curve.

Fixed-income ETFs have attracted almost US$59 billion in inflows so far this year as investors sought shelter amid the coronavirus pandemic, according to data compiled by Bloomberg.

BlackRock’s iShares iBoxx $ Investment Grade Corporate Bond ETF is at the top of the leaderboard, with State Street’s ultra-short offering -- the SPDR Bloomberg Barclays 1-3 Month T-Bill ETF -- in second place.

BlackRock manages roughly US$139 billion in Treasury-focused ETFs across 19 products. BlackRock’s US$29.3 billion iShares Short Treasury Bond ETF, which invests in securities maturing in a year or less, is the largest Treasury-focused ETF.