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Data as of Sep 19, 2026.

ETFIQetfiq.com · independent ETF data

IBIT vs SPY: how they differ

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

iShares Bitcoin Trust ETF and SPDR S&P 500 ETF Trust.

What they hold in common

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

Only in each
Only in IBITOnly in SPY
BITCOIN 100.00%NVIDIA CORP 8.14%
USD CASH 0.00%APPLE INC 7.43%
MICROSOFT CORP 5.55%
AMAZON.COM INC 3.77%
ALPHABET INC CL A 3.10%
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 SPY on the fields both publish, as of Sep 19, 2026. Source: ETFIQ.
IBIT
iShares Bitcoin Trust ETF
SPY
SPDR S&P 500 ETF Trust
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 pts0.0 pts
Expense ratio0.25%0.09%
Holdings2505
Net assets$63.7bn$785.0bn

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.

SPY in plain words

SPY 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 0.09% 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 505 positions, with the top ten at 38.5%.

Questions people ask

Which returned more over the last year, IBIT or SPY?
In the year to Sep 19, 2026, with distributions reinvested, IBIT returned −31.1% and SPY returned +16.6%, so SPY returned more.
Which is cheaper, IBIT or SPY?
IBIT charges 0.25% a year and SPY charges 0.09%, so SPY is cheaper. Fees come from each fund's prospectus.

Other comparisons

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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 SPY, ETFIQ, data as of Sep 19, 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 SPY, data as of Sep 19, 2026. https://etfiq.com/compare/any/ibit-vs-spy Free to use with attribution; the underlying files are at Open data.

A comparison is not a recommendation. Standards and sources