Get the weekly note

Data as of Sep 12, 2026. Both funds on the fields they both publish, from the same sources.

ETFIQetfiq.com · independent ETF data

BOXX vs MDY: how they differ

BOXX is a short-term Treasury fund and MDY an equity index fund, and over the year MDY returned more, +13.0% against +4.0%.

Alpha Architect 1-3 Month Box ETF and SPDR S&P MidCap 400 ETF Trust.

BOXX and MDY on the fields both publish, as of Sep 12, 2026. Source: ETFIQ.
BOXX
Alpha Architect 1-3 Month Box ETF
MDY
SPDR S&P MidCap 400 ETF Trust
Where it sitsCore index fundCore index fund
IssuerAlphaState Street
What it is1-3 Month BoxS&P MidCap 400, book from IJH
Total return, 1 year+4.0%+13.0%
S&P 500 over the same days+17.5%+17.5%
Gap to the S&P 500−13.5 pts−4.5 pts
Expense ratio0.19%0.23%
Holdingsnot filed400

BOXX in plain words

BOXX is a cash and treasury bills tracking the 1-3 Month Box. Over the year to Sep 11, 2026 it returned +4.0% with distributions reinvested, against +17.5% for the S&P 500 and +23.0% for the Nasdaq-100. The prospectus expense ratio is 0.19% 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 Jun 30, 2026, 0% of the fund by weight is stocks the S&P 500 also holds, across 400 positions, with the top ten at 7.7%. 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, BOXX or MDY?
In the year to Sep 12, 2026, with distributions reinvested, BOXX returned +4.0% and MDY returned +13.0%, so MDY returned more. One year is one year; the longer windows are in the table.
Which is cheaper, BOXX or MDY?
BOXX charges 0.19% a year and MDY charges 0.23%, so BOXX is cheaper. Fees come from each fund's prospectus.

Other comparisons

Where to next

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.

BOXX against MDY, ETFIQ, data as of Sep 12, 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, BOXX against MDY, data as of Sep 12, 2026. https://etfiq.com/compare/any/BOXX-MDY Free to use with attribution; the underlying files are at Open data.

A comparison is not a recommendation. Standards and sources