Which returned more over the last year, BITO or IWC?

In the year to Sep 13, 2026, with distributions reinvested, BITO returned −34.8% and IWC returned +31.3%, so IWC returned more. One year is one year; the longer windows are in the table.

Data as of Sep 13, 2026. Both funds on the fields they both publish, from the same sources.

ETFIQetfiq.com · independent ETF data

BITO vs IWC: how they differ

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

ProShares Bitcoin ETF and iShares Micro-Cap ETF.

What they hold in common

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

Largest positions each one holds and the other does not
Only in BITO	Only in IWC
CME BITCOIN FUT DIGITAL ASSETS 25/SEP/20 81.49%	CAREDX 0.61%
COINBASE BIT FUT DIGITAL ASSETS 25/SEP/2 14.27%	SELLAS LIFE SCIENCES GROUP INC 0.60%
S&P CME BITCOIN FUTURES DAILY ROLL INDEX 4.24%	NURIX THERAPEUTICS 0.59%
	PENGUIN SOLUTIONS INC 0.58%
	OUSTER 0.52%
	VIRIDIAN THERAPEUTICS ORS 0.48%
	INTERFACE 0.47%
	MBX BIOSCIENCES 0.45%

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 10, 2026 and Sep 11, 2026.

BITO and IWC on the fields both publish, as of Sep 13, 2026. Source: ETFIQ.
	BITO ProShares Bitcoin ETF	IWC iShares Micro-Cap ETF
Where it sits	Core index fund	Core index fund
Issuer	ProShares	iShares
What it is	Bitcoin	Russell Microcap
Total return, 1 year	−34.8%	+31.3%
S&P 500 over the same days	+17.5%	+17.5%
Gap to the S&P 500	−52.3 pts	+13.8 pts
Expense ratio	0.95%	not published
Holdings	3	1252

BITO in plain words

BITO is a digital asset fund tracking the Bitcoin. Over the year to Sep 11, 2026 it returned −34.8% with distributions reinvested, against +17.5% for the S&P 500 and +23.0% for the Nasdaq-100. The prospectus expense ratio is 0.95% a year. It sat 40.3% below its high of Oct 6, 2025 on Sep 11, 2026.

IWC in plain words

IWC is an index equity fund tracking the Russell Microcap. Over the year to Sep 11, 2026 it returned +31.3% with distributions reinvested, against +17.5% for the S&P 500 and +23.0% for the Nasdaq-100. By its holdings filed for Sep 10, 2026, 92% of the fund by weight is stocks the S&P 500 also holds, across 1252 positions, with the top ten at 5.1%. It sat 5.0% below its high of Aug 14, 2026 on Sep 11, 2026.

Questions people ask

Which returned more over the last year, BITO or IWC?: In the year to Sep 13, 2026, with distributions reinvested, BITO returned −34.8% and IWC returned +31.3%, so IWC returned more. One year is one year; the longer windows are in the table.

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.

BITO against IWC, ETFIQ, data as of Sep 13, 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, BITO against IWC, data as of Sep 13, 2026. https://etfiq.com/compare/any/bito-vs-iwc Free to use with attribution; the underlying files are at Open data.

A comparison is not a recommendation. Standards and sources