Get the weekly note

Data as of Sep 19, 2026.

ETFIQetfiq.com · independent ETF data

IBIT vs IWM: how they differ

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

iShares Bitcoin Trust ETF and iShares Russell 2000 ETF.

What they hold in common

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

Positions IBIT and IWM both hold, largest shared weight first
HoldingIBITIWM
USD CASH0.00%-0.13%
Only in each
Only in IBITOnly in IWM
BITCOIN 100.00%TWIST BIOSCIENCE 0.36%
MOOG INC CLASS A 0.34%
HUT CORP 0.33%
JFROG 0.33%
UMB FINANCIAL 0.33%
VIASAT INC 0.32%
BRIGHTSPRING HEALTH SERVICES INC 0.31%
GLAUKOS 0.31%

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 IWM on the fields both publish, as of Sep 19, 2026. Source: ETFIQ.
IBIT
iShares Bitcoin Trust ETF
IWM
iShares Russell 2000 ETF
Where it sitsCore fundCore fund
IssueriSharesiShares
What it isHolds bitcoinTracks the Russell 2000
Total return, 1 year−31.1%+17.2%
S&P 500 over the same days+16.6%+16.6%
Gap to the S&P 500−47.6 pts+0.6 pts
Expense ratio0.25%0.19%
Holdings21963
Net assets$63.7bn$77.2bn

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.

IWM in plain words

IWM tracks the Russell 2000. Over the year to Sep 18, 2026 it returned +17.2% with distributions reinvested, against +16.6% for the S&P 500 and +21.8% for the Nasdaq-100. The prospectus expense ratio is 0.19% 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 1963 positions, with the top ten at 3.5%. It sat 6.6% below its high of Aug 14, 2026 on Sep 18, 2026.

Questions people ask

Which returned more over the last year, IBIT or IWM?
In the year to Sep 19, 2026, with distributions reinvested, IBIT returned −31.1% and IWM returned +17.2%, so IWM returned more.
Which is cheaper, IBIT or IWM?
IBIT charges 0.25% a year and IWM charges 0.19%, so IWM 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 IWM, 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 IWM, data as of Sep 19, 2026. https://etfiq.com/compare/any/ibit-vs-iwm Free to use with attribution; the underlying files are at Open data.

A comparison is not a recommendation. Standards and sources