RSP vs VO overlap - what they share and where they differ
RSP and VO share 46.9% of their weight across 247 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.
RSP and VO
46.9%
247 shared positions
RSP
Invesco S&P 500 Equal Weight ETF
Reported positions cover 100% of the fund, 500 positions · Jul 31, 2026
Top 10: 2.6%·Holdings of RSP
VO
VANGUARD MID-CAP INDEX FUND
Reported positions cover 100% of the fund, 279 positions · Jun 30, 2026
Top 10: 9.5%·Holdings of VO
Reported positions cover RSP 100%, VO 100% of each fund. An overlap cannot exceed the smaller coverage, so a low figure can mean little overlap or thin reporting.
VO vs RSP side by side
RSPInvesco S&P 500 Equal Weight ETF
500
stock positions reported to the SEC
50.5% of its weight is in 253 names VO does not hold
VOVANGUARD MID-CAP INDEX FUND
279
stock positions reported to the SEC
8.6% of its weight is in 32 names RSP does not hold
Where each fund's weight sits
Largest sectors for both funds
The widest gap is Healthcare: RSP has 12.5 points more of it.
The figures side by side
| RSP | VO | |
|---|---|---|
| Filing date | Jul 31, 2026 | Jun 30, 2026 |
| Stock positions reported | 500 | 279 |
| Weight of the ten largest | 2.6% | 9.5% |
| Largest position | PYPL 0.3% | VRT 1.2% |
| Held alone | 253 positions, 50.5% | 32 positions, 8.6% |
| Covered by stock positions | 100% | 100% |
Holdings they share
| Stock | In RSP | In VO | Counted |
|---|---|---|---|
| EXPEExpedia Group, Inc. | 0.26% | 0.28% | 0.26% |
| DASHDoorDash, Inc. | 0.25% | 0.66% | 0.25% |
| IQVIQVIA Holdings Inc. | 0.25% | 0.31% | 0.25% |
| CMGChipotle Mexican Grill, Inc. | 0.24% | 0.42% | 0.24% |
| GRMNGarmin Ltd. | 0.24% | 0.38% | 0.24% |
| MTDMettler-Toledo International Inc. | 0.24% | 0.25% | 0.24% |
| REGNRegeneron Pharmaceuticals, Inc. | 0.24% | 0.31% | 0.24% |
| TRVTravelers Cos., Inc. (The) | 0.24% | 0.34% | 0.24% |
| VEEVVeeva Systems Inc. | 0.24% | 0.25% | 0.24% |
| WTWWillis Towers Watson PLC | 0.25% | 0.24% | 0.24% |
What each holds alone
The heaviest positions one fund reports and the other does not.
Only in RSP
Only in VO
Questions people ask
Is RSP the same as VO?
46.9% of their weight sits in the same 247 holdings. RSP also reports TECH, ZBRA, BAX, which the other does not. VO also reports BE, NET, RKLB, which the other does not.
How is the overlap between RSP and VO 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 RSP and 100% of VO, so the number cannot exceed the smaller coverage.
Which holds more, VO or RSP?
RSP reports 500 stock positions and VO reports 279. 50.5% of RSP's weight sits in names VO does not hold, and 8.6% of VO's weight in names RSP does not hold. The ten largest positions are 2.6% of RSP and 9.5% of VO.
How do RSP and VO differ by sector?
The widest gap is Healthcare: RSP has 12.5 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.
Add a third fund in the tool·All fund pairs
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.