IWP vs RSP Overlap

IWP is a U.S. growth equity ETF from IShares, while RSP is an equal-weight U.S. equity ETF from Invesco. IWP and RSP show limited overlap, with an estimated weighted overlap of 13.3%. They share 81 holdings in the loaded dataset, led by TPL, FIX, and HWM.

13.3% overlap
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81Shared Holdings
OK
Low Overlap

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Quick Answer

IWP is a U.S. growth equity ETF from IShares, while RSP is an equal-weight U.S. equity ETF from Invesco. IWP and RSP show limited overlap, with an estimated weighted overlap of 13.3%. They share 81 holdings in the loaded dataset, led by TPL, FIX, and HWM.

  • 13.3% weighted overlap across 81 shared holdings.
  • The top three shared holdings explain 6.51% of the measured overlap.
  • RSP is the broader fund, while IWP is more targeted.
  • The overlap is mostly explained by the top shared positions rather than sector labels alone.
  • Holding both can still add materially different exposure.

Data Freshness

IWP holdings
Mar 12, 2026
RSP holdings
Mar 12, 2026
Overlap computed
Mar 15, 2026
Data source
Financial Modeling Prep

Review the methodology for the overlap formula and refresh policy.

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About These ETFs

ETF A

IWP

iShares Russell Mid-Cap Growth ETF

Issuer
IShares
Asset class
Equity
Expense ratio
0.23%
AUM
$19B
Inception
Jul 17, 2001

ETF B

RSP

Invesco S&P 500 Equal Weight ETF

Issuer
Invesco
Asset class
Equity
Expense ratio
0.2%
AUM
$87B
Inception
Apr 24, 2003

What Stands Out In This Comparison

01

What This Means

IWP is a U.S. growth equity ETF from IShares, while RSP is an equal-weight U.S. equity ETF from Invesco. IWP and RSP do not own much of the same portfolio weight. That usually means you are combining different parts of the market, with only a small amount of duplication through names like TPL, FIX, and HWM.

02

How They Differ

IWP is a U.S. growth equity ETF from IShares, while RSP is an equal-weight U.S. equity ETF from Invesco. RSP is the broader fund, while IWP is the more targeted sleeve. RSP has the lower expense ratio, while IWP charges more for its exposure.

03

What Drives The Overlap

The overlap is driven by a relatively small set of large shared positions. The top three shared holdings account for 6.51% of the score, which means the result is heavily influenced by the biggest common weights rather than a long tail of tiny positions.

04

When One May Fit Better

If you want the broader portfolio building block, RSP is usually the wider choice. If you want the more focused tilt, IWP is the narrower expression. RSP has the lower expense ratio, while IWP charges more for its exposure.

Overlap Driver Snapshot

Concentration

The top three shared holdings explain 6.51% of the full overlap score.

That helps show whether the score comes from a handful of giant shared positions or from a broader mix of common holdings.

Shared Sector Tilt

Sector tags are not consistently available for the biggest shared positions in this dataset, so this comparison leans more on the specific holdings than on sector labels.

Top Shared Holdings

These are the holdings contributing the most to the overlap score between IWP and RSP.

HoldingIWP Wt.RSP Wt.Overlap
TPL1.04%0.34%0.34%
FIX1.66%0.27%0.27%
HWM3.52%0.26%0.26%
TRGP1.71%0.25%0.25%
TPR0.97%0.25%0.25%
PWR2.22%0.24%0.24%
LYV0.91%0.23%0.23%
ROST0.47%0.23%0.23%
EME0.38%0.23%0.23%
SYY0.75%0.22%0.22%

Why These ETFs Overlap

IWP is a U.S. growth equity ETF from IShares, while RSP is an equal-weight U.S. equity ETF from Invesco. The overlap exists because both funds allocate meaningful weight to the same holdings. In this dataset, the biggest shared drivers are TPL, FIX, and HWM, which appear in both portfolios and push the overlap score higher.

Holding both IWP and RSP can make sense if you want exposure to different sleeves of the market. The overlap is small enough that both funds may still improve diversification.

Related Comparisons

Frequently Asked Questions About IWP and RSP

What is the overlap between IWP and RSP?+
IWP and RSP currently show an estimated weighted overlap of 13.3% based on the loaded holdings data.
How many holdings do IWP and RSP share?+
They share 81 holdings in the current dataset.
Is the IWP and RSP overlap high?+
The current verdict is Low Overlap. That means the two ETFs have limited duplication in portfolio weight.
Why do IWP and RSP overlap?+
IWP and RSP overlap because the same large positions appear in both funds. In this comparison, the top three shared holdings explain 6.51% of the measured overlap score.
Which ETF is broader, IWP or RSP?+
RSP is the broader fund, while IWP is the more targeted sleeve. That does not automatically make one better, but it helps explain why the pair can overlap while still serving different roles.

How Overlap Is Calculated

A straightforward approach used by portfolio analysts.

Overlap = sum(min(Weight_A, Weight_B)) for each shared holding

For every stock that appears in both ETFs, we take the smaller of the two weights. Adding up all those minimums gives the total overlap percentage. A score of 100% means the two ETFs hold the exact same stocks in the same proportions.

Want the full explanation? Read the methodology page.

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