IWP vs IWR overlap - what they share and where they differ
IWP and IWR share 34.2% of their weight across 261 common positions, read from what each fund reported to the SEC.
Each week Ploutos reads the reported positions of the largest US equity ETFs and measures, pair by pair, the weight they share: for every stock both funds hold, the smaller of the two weights counts. Two funds tracking the same index land near 100%. A sector fund inside a broad index fund lands at roughly that sector's weight.
IWP and IWR
34.2%
261 shared positions
IWP
iShares Russell Mid-Cap Growth ETF
Reported positions cover 100% of the fund, 261 positions · Jun 30, 2026
Top 10: 19.7%·Holdings of IWP
IWR
iShares Russell Mid-Cap ETF
Reported positions cover 100% of the fund, 808 positions · Jun 30, 2026
Top 10: 5.6%·Holdings of IWR
Reported positions cover IWP 100%, IWR 100% of each fund. An overlap cannot exceed the smaller coverage, so a low figure can mean little overlap or thin reporting.
IWR vs IWP side by side
IWPiShares Russell Mid-Cap Growth ETF
261
stock positions reported to the SEC
0.0% of its weight is in 0 names IWR does not hold
IWRiShares Russell Mid-Cap ETF
808
stock positions reported to the SEC
59.4% of its weight is in 547 names IWP does not hold
Where each fund's weight sits
Largest sectors for both funds
The widest gap is Technology: IWP has 13.7 points more of it.
The figures side by side
| IWP | IWR | |
|---|---|---|
| Filing date | Jun 30, 2026 | Jun 30, 2026 |
| Stock positions reported | 261 | 808 |
| Weight of the ten largest | 19.7% | 5.6% |
| Largest position | DDOG 2.3% | DDOG 0.6% |
| Held alone | 0 positions, 0.0% | 547 positions, 59.4% |
| Covered by stock positions | 100% | 100% |
Holdings they share
| Stock | In IWP | In IWR | Counted |
|---|---|---|---|
| DDOGDatadog, Inc. | 2.34% | 0.62% | 0.62% |
| SNOWSnowflake, Inc. | 2.33% | 0.61% | 0.61% |
| RCLRoyal Caribbean Cruises Ltd. | 1.24% | 0.58% | 0.58% |
| HOODRobinhood Markets, Inc. | 1.75% | 0.56% | 0.56% |
| NETCloudflare, Inc. | 2.12% | 0.56% | 0.56% |
| TERTeradyne, Inc. | 2.07% | 0.55% | 0.55% |
| MPCMarathon Petroleum Corp. | 1.05% | 0.54% | 0.54% |
| ALABAstera Labs, Inc. | 2.02% | 0.53% | 0.53% |
| SPGSimon Property Group, Inc. | 1.96% | 0.52% | 0.52% |
| FIXComfort Systems USA, Inc. | 1.89% | 0.50% | 0.50% |
What each holds alone
The heaviest positions one fund reports and the other does not.
Only in IWP
Nothing among its reported positions that the others do not also hold.
Only in IWR
Questions people ask
Is IWP the same as IWR?
34.2% of their weight sits in the same 261 holdings. Among its reported positions, IWP holds nothing the other does not also hold. IWR also reports WBD, DLR, KMI, which the other does not.
How is the overlap between IWP and IWR measured?
For every stock both funds report, the smaller of the two weights counts, and the sum is the overlap. The reported positions cover 100% of IWP and 100% of IWR, so the number cannot exceed the smaller coverage.
Which holds more, IWR or IWP?
IWP reports 261 stock positions and IWR reports 808. 0.0% of IWP's weight sits in names IWR does not hold, and 59.4% of IWR's weight in names IWP does not hold. The ten largest positions are 19.7% of IWP and 5.6% of IWR.
How do IWP and IWR differ by sector?
The widest gap is Technology: IWP has 13.7 points more of it. Sectors come from each holding's SIC code in its SEC record, summed by the weight the fund reports.
Where do the numbers come from?
From each fund's own N-PORT filing to the SEC, which lists every position and its weight. The comparison uses every equity position the fund reports; cash, futures and bonds are not counted, which is why a coverage figure sits next to every result. Holdings change between filings.
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Descriptive data from public SEC filings. Nothing on this page is a recommendation to buy, sell or hold any fund or stock, and holdings change between filings.