BIL vs SGOV

BILAState Street SPDR Bloomberg 1-3 Month T-Bill ETF

SGOVAiShares 0-3 Month Treasury Bond ETF

In short

BIL The original T-bill ETF, running since 2007: a giant, heavily traded stack of one-to-three-month Treasury bills that pays out monthly. Newer copycats undercut it on fee, but few match its trading footprint.

SGOV A cash-parking tool that owns nothing but US Treasury bills maturing in three months or less, pays out monthly, and charges 0.09%. Launched in 2020, it has grown into one of the largest bond ETFs around.

Stated mandate

BIL The fund seeks to track the price and yield performance of the Bloomberg 1-3 Month U.S. Treasury Bill Index before fees and expenses. It provides exposure to publicly issued U.S. Treasury bills with maturities of one to three months.

SGOV The fund seeks to track an index of U.S. Treasury bills with remaining maturities of three months or less.

Why people hold it

• BIL Holds publicly issued US Treasury bills maturing in one to three months, so the credit is the US government and rate sensitivity is measured in weeks, not years.ssga.com
• A straight index job against the Bloomberg 1-3 Month U.S. Treasury Bill Index, tracked closely: no credit tiers, no duration calls, no moving parts to second-guess.
• One of the most actively traded funds in its category, with a multi-billion-dollar asset base behind it, so getting in and out is rarely the hard part.
• Pays monthly and has run this same narrow mandate since 2007, across zero-rate years and high-rate years alike.

• SGOV 0.09% a year against a 0.14% median for its T-bill peer group, and it is very actively traded, which tends to keep the round-trip cost of getting in and out thin.
• One job, done plainly: track an index of Treasury bills with three months or less to run, and hand out the income monthly. Tracking has been close to the index.ishares.com
• Holdings mature in weeks, so interest-rate sensitivity is minimal and the share price moves very little when yields swing.ishares.com

Worth knowing

• BIL The 0.14% fee is the trade-off. Rivals run near-identical bill exposure for less (VBIL at 0.06%, CLIP at 0.07%), and on T-bills the fee is most of the gap.
• Income moves with short-term Treasury rates. The monthly payout is whatever bills are yielding, so it rises and falls with them rather than sitting fixed.
• A few dozen bills, all maturing inside three months. That is a cash parking spot by design, with no mechanism for capital growth.

• SGOV Cheaper bill funds exist. VBIL lists at 0.06% and CLIP at 0.07%, so the fee advantage here is over the pricier half of the group, not the whole field.
• Income tracks short-term rates. Bills roll every few weeks, so the monthly payout resets quickly in whichever direction rates go.
• The flip side of near-zero duration: no price kicker when rates drop, the way longer-dated Treasury funds get.

Full BIL profile⁠

Full SGOV profile⁠