Which returned more over the last year, BIL or MDY?

In the year to Sep 13, 2026, with distributions reinvested, BIL returned +3.7% and MDY returned +13.0%, so MDY returned more. One year is one year; the longer windows are in the table.

Which is cheaper, BIL or MDY?

BIL charges 0.14% a year and MDY charges 0.23%, so BIL is cheaper. Fees come from each fund's prospectus.

Data as of Sep 13, 2026. Both funds on the fields they both publish, from the same sources.

ETFIQetfiq.com · independent ETF data

BIL vs MDY: how they differ

BIL is a short-term Treasury fund and MDY an equity index fund, and over the year MDY returned more, +13.0% against +3.7%.

SPDR Bloomberg 1-3 Month T-Bill ETF and SPDR S&P MidCap 400 ETF Trust.

BIL and MDY on the fields both publish, as of Sep 13, 2026. Source: ETFIQ.
	BIL SPDR Bloomberg 1-3 Month T-Bill ETF	MDY SPDR S&P MidCap 400 ETF Trust
Where it sits	Core index fund	Core index fund
Issuer	State Street	State Street
What it is	1-3 month T-bills	S&P MidCap 400
Total return, 1 year	+3.7%	+13.0%
S&P 500 over the same days	+17.5%	+17.5%
Gap to the S&P 500	−13.8 pts	−4.5 pts
Expense ratio	0.14%	0.23%
Holdings	not filed	401

BIL in plain words

BIL is a cash and treasury bills tracking the 1-3 month T-bills. Over the year to Sep 11, 2026 it returned +3.7% with distributions reinvested, against +17.5% for the S&P 500 and +23.0% for the Nasdaq-100. The prospectus expense ratio is 0.14% a year.

MDY in plain words

MDY is an index equity fund tracking the S&P MidCap 400. Over the year to Sep 11, 2026 it returned +13.0% with distributions reinvested, against +17.5% for the S&P 500 and +23.0% for the Nasdaq-100. The prospectus expense ratio is 0.23% a year. By its holdings filed for Sep 10, 2026, 0% of the fund by weight is stocks the S&P 500 also holds, across 401 positions, with the top ten at 7.9%. It sat 5.3% below its high of Aug 14, 2026 on Sep 11, 2026.

Questions people ask

Which returned more over the last year, BIL or MDY?: In the year to Sep 13, 2026, with distributions reinvested, BIL returned +3.7% and MDY returned +13.0%, so MDY returned more. One year is one year; the longer windows are in the table.
Which is cheaper, BIL or MDY?: BIL charges 0.14% a year and MDY charges 0.23%, so BIL is cheaper. Fees come from each fund's prospectus.

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Where these figures came from

ETFIQ links to the documents behind every figure. It is not affiliated with any issuer, and a link is not an endorsement.

BIL against MDY, ETFIQ, data as of Sep 13, 2026. Every figure is arithmetic on a named public source; the method is at etfiq.com/methodology. A comparison is not a recommendation.

Cite this page. ETFIQ, BIL against MDY, data as of Sep 13, 2026. https://etfiq.com/compare/any/bil-vs-mdy Free to use with attribution; the underlying files are at Open data.

A comparison is not a recommendation. Standards and sources