MDY vs VTI ETF holdings comparison
SPDR S&P MIDCAP 400 ETF Trust (MDY) · Vanguard Total Stock Market ETF (VTI)
MDY and VTI overlap by 5% by portfolio weight. The remaining 95.0 percentage points are not counted as shared holdings weight by this calculation. They share 397 stocks; the largest shared position is Corteva Inc (CTVA), contributing 0.08% to the overlap.
The holdings dates differ. This can slightly understate overlap for funds tracking similar indexes.
What this means
MDY and VTI share a smaller portion of their portfolio weight in the same underlying stocks. OverlapCheck labels this "low holdings overlap" using house ranges of 70% or more, 30% to under 70%, and under 30%. These descriptive ranges are not industry standards or investment guidance. Holdings overlap does not measure correlation, volatility, geographic or factor exposure, fees, or suitability.
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.
This comparison covers normalized equity positions represented in the dataset. Cash, derivatives, options, structured notes, and other non-equity assets are not included, so the result is not a complete comparison of every asset or risk in either fund.
Top shared holdings
| Company | Ticker | in MDY | in VTI |
|---|---|---|---|
| Corteva Inc | CTVA | 0.27% | 0.08% |
| Mks Inc. | MKSI | 0.51% | 0.04% |
| Carpenter Technology Corporation | CRS | 0.56% | 0.04% |
| Curtiss-Wright Corporation | CW | 0.54% | 0.04% |
| Entegris Inc. | ENTG | 0.72% | 0.04% |
| Nvent Electric Plc | NVT | 0.77% | 0.04% |
| Ati Inc | ATI | 0.74% | 0.04% |
| Technipfmc Plc | FTI | 0.79% | 0.04% |
| Mastec Inc. | MTZ | 0.39% | 0.04% |
| Macom Technology Solutions Holdings Inc. | MTSI | 0.65% | 0.04% |
Holdings only in MDY or VTI
MDY has 3 fund-only positions representing approximately 0.8 percentage points of reported exposure; VTI has 2783 fund-only positions representing approximately 94.8 percentage points of reported exposure. These are positions whose normalized security identifiers appear in one issuer file but not the other.
Largest positions only in MDY
| Company | Ticker | Weight |
|---|---|---|
| Sharkninja Inc. | SN | 0.45% |
| Autoliv Inc. | ALV | 0.21% |
| Livanova Plc | LIVN | 0.12% |
Largest positions only in VTI
| Company | Ticker | Weight |
|---|---|---|
| NVIDIA Corp | NVDA | 6.36% |
| Apple Inc | AAPL | 5.87% |
| Microsoft Corp | MSFT | 3.83% |
| Amazon.com Inc | AMZN | 3.19% |
| Alphabet Inc | GOOGL | 2.90% |
| Broadcom Inc | AVGO | 2.47% |
| Alphabet Inc | GOOG | 2.28% |
| Micron Technology Inc | MU | 1.80% |
| Meta Platforms Inc | META | 1.71% |
| Tesla Inc | TSLA | 1.64% |
FAQ
How much do MDY and VTI overlap?
MDY and VTI have 5% overlap by weight, sharing 397 equity positions (out of 400 in MDY and 3180 in VTI). The official holdings files used are dated 2026-10-08 for MDY and 2026-06-30 for VTI.
What does 5% overlap mean?
MDY and VTI share a smaller portion of their portfolio weight in the same underlying stocks. OverlapCheck labels this "low holdings overlap" using house ranges of 70% or more, 30% to under 70%, and under 30%. These descriptive ranges are not industry standards or investment guidance. Holdings overlap does not measure correlation, volatility, geographic or factor exposure, fees, or suitability.
Which stocks do MDY and VTI both hold?
The largest shared positions are Corteva Inc, Mks Inc., Carpenter Technology Corporation, Curtiss-Wright Corporation, Entegris Inc.. The top shared holdings with weights in each fund are shown on this page.
What holdings are different between MDY and VTI?
MDY has 3 positions not found in VTI, while VTI has 2783 positions not found in MDY. The largest fund-only positions and their weights are shown on this page.