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IWB vs TSPA: Differences, Returns & Fees

IWB and TSPA hold 69% of their weight in the same names, and TSPA returned +17.4% over the year. Net assets on Oct 9, 2026: $49.6bn for iShares Russell 1000 ETF and $4.7bn for T. Rowe Price U.S. Equity Research ETF.

IWB costs 0.19 points a year less; their one-year returns differ by 0.8 points; IWB is 10.5 times larger.

IWB vs TSPA: Differences, Returns & Fees
IWBTSPA
Expense ratio0.15%0.34%
Net assets$49.6bn$4.7bn
Total return, 1 year+16.6%+17.4%
What it tracksRussell 1000 IndexNo index, actively managed
Holdings in common69%
Top ten holdings, share of the fund36.1%36.3%

Holdings in common uses holdings dated Jun 30, 2026 and Oct 9, 2026.

+16.6%
IWB total return, 1 year
+17.4%
TSPA total return, 1 year
0.15%
IWB expense ratio
0.34%
TSPA expense ratio

What they hold in common

By the books each fund has filed, IWB and TSPA hold 69% of their money in the same securities at the same weight. Above 50%, holding both is close to holding one of them twice. Holdings dated Jun 30, 2026 and Oct 9, 2026.

half

69% in common

Positions both hold, largest shared weight first
Holding IWB TSPA
NVIDIA 7.44% 7.39%
APPLE 6.77% 6.50%
MICROSOFT 5.53% 4.28%
AMAZON.COM INC 3.54% 3.71%
ALPHABET CLASS A 2.85% 2.59%
BROADCOM INC 2.34% 2.65%
ALPHABET CLASS C 2.30% 3.35%
META PLATFORMS CLASS A 2.20% 2.04%
MICRON TECHNOLOGY 1.61% 2.03%
TESLA INC 1.56% 1.77%
ADVANCED MICRO DEVICES 1.38% 1.76%
ELI LILLY 1.31% 1.54%
Only in IWB
JPMORGAN CHASE & CO 1.24%
EXXONMOBIL HOLDINGS CORP 0.97%
APPLIED MATERIAL INC 0.56%
GE VERNOVA 0.38%
TEXAS INSTRUMENT INC 0.36%
INTERNATIONAL BUSINESS MACHINES 0.30%
VERIZON COMMUNICATIONS INC 0.24%
MCDONALDS CORP 0.23%
Only in TSPA
J.P. MORGAN CHASE & CO. 1.27%
APPLIED MATERIALS INC 1.11%
EXXON MOBIL CORP 0.77%
SEAGATE TECHNOLOGY HOLDINGS 0.44%
MCDONALD S CORP 0.35%
MARSH & MCLENNAN COS 0.34%
SCHWAB (CHARLES) CORP 0.32%
GE VERNOVA LLC 0.32%

Check overlap with more funds →

On the same fields

IWB
iShares Russell 1000 ETF
TSPA
T. Rowe Price U.S. Equity Research ETF
Where it sits Stock ETF Stock ETF
Issuer iShares T. Rowe Price
What it is Tracks the Russell 1000 Actively managed
Total return, 1 year +16.6% +17.4%
Its benchmark over the same days +16.8% (VONE) not published
Gap to its benchmark −0.1 pts vs VONE not available
Expense ratio 0.15% 0.34%
Already in the S&P 500 91.7% 95.9%
Holdings 1025 328
Net assets $49.6bn $4.7bn

IWB and TSPA on the fields both publish, as of Oct 9, 2026. Source: ETFIQ.

About IWB

IWB tracks the Russell 1000. Over the year to Oct 9, 2026 it returned +16.6% with distributions reinvested, against +16.8% for its benchmark, the Russell 1000 Index. The prospectus expense ratio is 0.15% a year. By its holdings published by its issuer for Oct 9, 2026, 92% of the fund by weight is stocks the S&P 500 also holds, across 1,025 positions, with the top ten at 36.1%.

About TSPA

TSPA is actively managed and tracks no index. Over the year to Oct 9, 2026 it returned +17.4% with distributions reinvested. The prospectus expense ratio is 0.34% a year. By its holdings filed for Jun 30, 2026, 96% of the fund by weight is stocks the S&P 500 also holds, across 328 positions, with the top ten at 36.3%.

Questions people ask

Which returned more over the last year, IWB or TSPA?
In the year to Oct 9, 2026, with distributions reinvested, IWB returned +16.6% and TSPA +17.4%.
Which is cheaper, IWB or TSPA?
IWB is cheaper, by 0.19 percentage points a year. That is about $19 on $10,000 held for a year. Fees come from each fund's prospectus.
How much do IWB and TSPA overlap with the S&P 500?
By their latest filed holdings, 92% of IWB and 96% of TSPA by weight is stocks the S&P 500 already holds.
Other comparisons
IWB vs OMFLIWB vs VTHRIWB vs USMCIWB vs SUSAQUAL vs TSPASCHB vs TSPARDVY vs TSPATSPA vs USMV
IWB on its own →TSPA on its own →Hold both: look the portfolio through →Rankings →Standards and sources →
Where these figures came from
IWB filings on SEC EDGAR ↗IWB prospectus with the expense ratio (SEC) ↗iShares page for IWB ↗TSPA filings on SEC EDGAR ↗TSPA prospectus with the expense ratio (SEC) ↗T. Rowe Price website ↗

ETFIQ links to the documents behind every figure; a link is not an endorsement. A comparison is not a recommendation.

How this is computed

Overlap adds up the smaller of the two weights for each security both funds hold.

Cite this pageCitation, APA and Markdown

ETFIQ, IWB against TSPA, data as of Oct 9, 2026. https://etfiq.com/compare/any/iwb-vs-tspa

Open data

Free to use with attribution for figures ETFIQ computes; issuer data stays under its owner's terms.