MDYG vs VIOG: Holdings Overlap
MDYGState Street® SPDR® S&P 400™ Mid Cap Growth ETF
State Street (SPDR) · 245 holdings · $2.9B · as of 2026-08-06
VIOGVanguard S&P Small-cap 600 Growth Index Fund
Vanguard · 342 holdings · $1.1B · as of 2026-05-31
Holdings snapshots are 67 days apart (MDYG: 2026-08-06, VIOG: 2026-05-31). Weights and index membership change between snapshots, so the true current overlap is typically higher than shown. For funds tracking the same index, the gap can be 5–15 points.
How similar are MDYG and VIOG?
State Street® SPDR® S&P 400™ Mid Cap Growth ETF (MDYG, by State Street (SPDR)) holds 245 positions; Vanguard S&P Small-cap 600 Growth Index Fund (VIOG, by Vanguard) holds 342. They have 5 holdings in common, and by portfolio weight the two funds are 2.5% identical. In practical terms the pair is essentially distinct, holding almost none of the same securities.
- Overlap by Weight
- 2.5%Sum of the smaller weight of each shared holding
- Shared Holdings
- 5MDYG holds 245 · VIOG holds 342
- Weight in Shared Holdings
- MDYG 3%·VIOG 6%Share of each fund's weight in stocks both funds own
Based on each fund's latest official holdings. How is this calculated?
What makes each fund different
Only in MDYG
240 of 245 positions (97.3% of the fund) are not held by VIOG. Showing the top 30 by weight.
Sector Breakdown
| Sector | MDYG | VIOG |
|---|---|---|
| Industrials | 29.8% | 21.8% |
| Information Technology | 20.2% | 18.4% |
| Health Care | 15.5% | 14.7% |
| Financials | 8.0% | 14.2% |
| Consumer Discretionary | 9.0% | 10.8% |
| Other Sectors | 17.3% | 19.9% |
Share of each fund's portfolio weight by GICS-style sector, compiled from issuer fund data and our own classification of the holdings, not the issuers' published sector charts.
Performance
| Fund | 1M | YTD | 1Y | 3Y (ann.) | 5Y (ann.) | 10Y (ann.) | Yield |
|---|---|---|---|---|---|---|---|
| MDYG | +3.3% | +21.6% | +28.0% | +16.0% | +8.5% | +11.3% | 0.56% |
| VIOG | +1.1% | +25.9% | +33.8% | +15.2% | +6.8% | +11.2% | 0.75% |
Total returns including dividends, from adjusted daily closes as of 2026-08-07. 3Y/5Y/10Y are annualized. Yield is trailing-12-month distributions over the last close. Past performance does not predict future results.
Project the growth of $10,000 in MDYG vs VIOG →
Shared Holdings(5)
The top 5 shared positions account for 100% of the overlap, led by SANM, BTSG and VIAV.
Frequently Asked Questions
How much do MDYG and VIOG overlap?
MDYG and VIOG overlap by 2.5% of portfolio weight. They share 5 holdings (MDYG holds 245 positions and VIOG holds 342), based on each fund's latest SEC-reported holdings.
Is it redundant to own both MDYG and VIOG?
The two portfolios are 2.5% identical by weight. Owning both is genuine diversification: the funds hold almost none of the same securities.
What are the biggest shared holdings of MDYG and VIOG?
The largest positions held by both funds are SANM, BTSG, VIAV, SMTC and KRYS. Together the top 5 shared positions account for 100% of the total overlap.
What does MDYG own that VIOG doesn't?
240 positions (97.3% of MDYG) are unique to MDYG, led by ATI, TWLO and FTI. In the other direction, 337 positions (93.7% of VIOG) are unique to VIOG.