RSP vs VO: how much do they overlap?
Invesco S&P 500 Equal Weight ETF (RSP) · Vanguard Mid-Cap ETF (VO)
overlap by weight · 252 shared holdings
RSP: 503 holdings (as of 2026-04-30) · VO: 289 holdings (as of 2026-03-31)
Note: the two funds' latest official filings have different dates, which can understate overlap slightly for funds tracking similar indexes.
Moderate overlap
What this means
RSP and VO share a meaningful slice of holdings. They are related but not interchangeable; check the shared names below to see where your exposure doubles up.
Overlap by weight sums the smaller of the two funds' weights for every stock they both hold — it answers "how much of my money is in the same stocks either way?" See methodology.
Top shared holdings
| Company | Ticker | in RSP | in VO |
|---|---|---|---|
| Seagate Technology Holdings PLC | STX | 0.34% | 0.93% |
| Western Digital Corp. | WDC | 0.31% | 1% |
| Ciena Corp. | CIEN | 0.3% | 0.3% |
| Monolithic Power Systems, Inc. | MPWR | 0.29% | 0.55% |
| Microchip Technology Inc. | MCHP | 0.27% | 0.38% |
| ON Semiconductor Corp. | ON | 0.33% | 0.27% |
| Lumentum Holdings Inc. | LITE | 0.26% | 0.27% |
| Hewlett Packard Enterprise Co. | HPE | 0.26% | 0.34% |
| Nucor Corp. | NUE | 0.25% | 0.4% |
| Comfort Systems USA, Inc. | FIX | 0.25% | 0.26% |
FAQ
How much do RSP and VO overlap?
RSP and VO have a 47.5% overlap by weight, sharing 252 holdings (out of 503 in RSP and 289 in VO), based on official issuer holdings as of 2026-04-30.
What does 47.5% overlap mean?
RSP and VO share a meaningful slice of holdings. They are related but not interchangeable; check the shared names below to see where your exposure doubles up.
Which stocks do RSP and VO both hold?
The largest shared positions are Seagate Technology Holdings PLC, Western Digital Corp., Ciena Corp., Monolithic Power Systems, Inc., Microchip Technology Inc.. The full list of top shared holdings with weights in each fund is shown on this page.