MDY vs VTI: how much do they overlap?
SPDR S&P MIDCAP 400 ETF Trust (MDY) · Vanguard Total Stock Market ETF (VTI)
overlap by weight · 397 shared holdings
MDY: 400 holdings (as of 09-Jul-2026) · VTI: 3503 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.
Low overlap
What this means
MDY and VTI hold mostly different stocks. Combining them genuinely spreads your exposure across different parts of the market.
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 MDY | in VTI |
|---|---|---|---|
| Technipfmc Plc | FTI | 0.78% | 0.04% |
| United Therapeutics Corporation | UTHR | 0.65% | 0.04% |
| Curtiss-Wright Corporation | CW | 0.78% | 0.04% |
| Royal Gold Inc. | RGLD | 0.45% | 0.03% |
| Xpo Inc. | XPO | 0.68% | 0.03% |
| Woodward Inc. | WWD | 0.67% | 0.03% |
| Burlington Stores Inc. | BURL | 0.56% | 0.03% |
| Us Foods Holding Corp. | USFD | 0.61% | 0.03% |
| Mastec Inc. | MTZ | 0.66% | 0.03% |
| Ati Inc | ATI | 0.71% | 0.03% |
FAQ
How much do MDY and VTI overlap?
MDY and VTI have a 5% overlap by weight, sharing 397 holdings (out of 400 in MDY and 3503 in VTI), based on official issuer holdings as of 09-Jul-2026.
What does 5% overlap mean?
MDY and VTI hold mostly different stocks. Combining them genuinely spreads your exposure across different parts of the market.
Which stocks do MDY and VTI both hold?
The largest shared positions are Technipfmc Plc, United Therapeutics Corporation, Curtiss-Wright Corporation, Royal Gold Inc., Xpo Inc.. The full list of top shared holdings with weights in each fund is shown on this page.