Get the weekly note

Data as of Sep 21, 2026.

ETFIQetfiq.com · independent ETF data

IBIT vs SPYM: how they differ

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

iShares Bitcoin Trust ETF and State Street SPDR Portfolio S&P 500 ETF.

What they hold in common

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

Only in each
Only in IBITOnly in SPYM
BITCOIN 100.00%NVIDIA CORP 8.15%
USD CASH 0.00%APPLE INC 7.44%
MICROSOFT CORP 5.56%
AMAZON.COM INC 3.77%
ALPHABET INC CL A 3.11%
BROADCOM INC 2.57%
ALPHABET INC CL C 2.48%
META PLATFORMS INC CLASS A 2.22%

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 SPYM on the fields both publish, as of Sep 21, 2026. Source: ETFIQ.
IBIT
iShares Bitcoin Trust ETF
SPYM
State Street SPDR Portfolio S&P 500 ETF
Where it sitsCore fundCore fund
IssueriSharesState Street
What it isHolds bitcoinTracks the S&P 500
Total return, 1 year−31.1%+16.6%
S&P 500 over the same days+16.6%+16.6%
Gap to the S&P 500−47.6 pts+0.1 pts
Expense ratio0.25%1.30%
Holdings2508
Net assets$63.7bn$172.2bn

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.

SPYM in plain words

SPYM tracks the S&P 500. Over the year to Sep 18, 2026 it returned +16.6% with distributions reinvested, against +16.6% for the S&P 500 and +21.8% for the Nasdaq-100. The prospectus expense ratio is 1.30% a year. By its holdings published by its issuer for Sep 18, 2026, 100% of the fund by weight is stocks the S&P 500 also holds, across 508 positions, with the top ten at 38.6%.

Questions people ask

Which returned more over the last year, IBIT or SPYM?
In the year to Sep 21, 2026, with distributions reinvested, IBIT returned −31.1% and SPYM returned +16.6%, so SPYM returned more.
Which is cheaper, IBIT or SPYM?
IBIT charges 0.25% a year and SPYM charges 1.30%, so IBIT 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.

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

A comparison is not a recommendation. Standards and sources