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

In the year to Sep 21, 2026, with distributions reinvested, IBIT returned −31.1% and MDY returned +11.6%, so MDY returned more.

Which is cheaper, IBIT or MDY?

IBIT charges 0.25% a year and MDY charges 0.23%, so MDY is cheaper. Fees come from each fund's prospectus.

Data as of Sep 21, 2026.

ETFIQetfiq.com · independent ETF data

IBIT vs MDY: how they differ

IBIT and MDY hold 0% of their weight in the same names, and MDY returned more over the year.

iShares Bitcoin Trust ETF and SPDR S&P MidCap 400 ETF Trust.

What they hold in common

By the books each fund has filed, IBIT and MDY hold 0% of their money in the same securities at the same weight.

Only in each
Only in IBIT	Only in MDY
BITCOIN 100.00%	Twilio Inc. Class A 1.06%
USD CASH 0.00%	Illumina Inc. 1.04%
	Everpure Inc. Class A 0.94%
	Okta Inc. Class A 0.88%
	U.S. Dollar 0.84%
	TechnipFMC plc 0.82%
	ATI Inc 0.75%
	nVent Electric plc 0.73%

Weight overlap is an ETFIQ calculation: for every security both funds hold, the smaller of the two weights, summed. Above 50%, holding both is close to holding one of them twice. Holdings dated Sep 18, 2026.

IBIT and MDY on the fields both publish, as of Sep 21, 2026. Source: ETFIQ.
	IBIT iShares Bitcoin Trust ETF	MDY SPDR S&P MidCap 400 ETF Trust
Where it sits	Core fund	Core fund
Issuer	iShares	State Street
What it is	Holds bitcoin	Tracks the S&P MidCap 400
Total return, 1 year	−31.1%	+11.6%
S&P 500 over the same days	+16.6%	+16.6%
Gap to the S&P 500	−47.6 pts	−5.0 pts
Expense ratio	0.25%	0.23%
Holdings	2	401
Net assets	$63.7bn	$25.5bn

IBIT in plain words

IBIT holds bitcoin. Over the year to Sep 18, 2026 it returned −31.1% with distributions reinvested, against +16.6% for the S&P 500 and +21.8% for the Nasdaq-100. The prospectus expense ratio is 0.25% a year. It sat 35.5% below its high of Oct 6, 2025 on Sep 18, 2026.

MDY in plain words

MDY tracks the S&P MidCap 400. Over the year to Sep 18, 2026 it returned +11.6% with distributions reinvested, against +16.6% for the S&P 500 and +21.8% for the Nasdaq-100. The prospectus expense ratio is 0.23% a year. By its holdings published by its issuer for Sep 18, 2026, 0% of the fund by weight is stocks the S&P 500 also holds, across 401 positions, with the top ten at 8.3%. It sat 6.8% below its high of Aug 14, 2026 on Sep 18, 2026.

Questions people ask

Which returned more over the last year, IBIT or MDY?: In the year to Sep 21, 2026, with distributions reinvested, IBIT returned −31.1% and MDY returned +11.6%, so MDY returned more.
Which is cheaper, IBIT or MDY?: IBIT charges 0.25% a year and MDY charges 0.23%, so MDY 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.

IBIT against MDY, ETFIQ, data as of Sep 21, 2026. Every figure is calculated from a named public source; the method is at etfiq.com/methodology. A comparison is not a recommendation.

Cite this page. ETFIQ, IBIT against MDY, data as of Sep 21, 2026. https://etfiq.com/compare/any/ibit-vs-mdy Free to use with attribution; the underlying files are at Open data.

A comparison is not a recommendation. Standards and sources