MDYG vs XSD: Holdings Overlap
MDYGState Street® SPDR® S&P 400™ Mid Cap Growth ETF
State Street (SPDR) · 245 holdings · $2.9B · as of 2026-08-06
XSDState Street® SPDR® S&P® Semiconductor ETF
State Street (SPDR) · 46 holdings · $2.9B · as of 2026-08-06
How similar are MDYG and XSD?
State Street® SPDR® S&P 400™ Mid Cap Growth ETF (MDYG, by State Street (SPDR)) holds 245 positions; State Street® SPDR® S&P® Semiconductor ETF (XSD, by State Street (SPDR)) holds 46. They have 9 holdings in common, and by portfolio weight the two funds are 4.1% identical. In practical terms the pair is essentially distinct, holding almost none of the same securities.
- Overlap by Weight
- 4.1%Sum of the smaller weight of each shared holding
- Shared Holdings
- 9MDYG holds 245 · XSD holds 46
- Weight in Shared Holdings
- MDYG 4%·XSD 21%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
236 of 245 positions (95.7% of the fund) are not held by XSD. Showing the top 30 by weight.
Sector Breakdown
| Sector | MDYG | XSD |
|---|---|---|
| Information Technology | 20.2% | 95.2% |
| Industrials | 29.8% | 1.8% |
| Health Care | 15.5% | 0.0% |
| Consumer Discretionary | 9.0% | 0.0% |
| Financials | 8.0% | 0.0% |
| Other Sectors | 17.3% | 0.0% |
| Unclassified | 0.0% | 2.9% |
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. “Unclassified” is weight we could not classify (0% of MDYG, 3% of XSD).
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% |
| XSD | +1.8% | +69.5% | +104.0% | +35.6% | +22.7% | +27.6% | 0.14% |
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 XSD →
Shared Holdings(9)
The top 9 shared positions account for 100% of the overlap, led by MTSI, SITM and RMBS.
 MTSIMACOM Technology Solutions Holdings Inc. COM | 1.06% | 2.19% | 1.06% |
|---|---|---|---|
 SITMSitime Corporation COM | 0.81% | 2.66% | 0.81% |
 RMBSRambus Inc. COM | 0.56% | 1.82% | 0.56% |
 LSCCLattice Semiconductor Corporation COM | 0.55% | 2.49% | 0.55% |
 SMTCSemtech Corporation COM | 0.47% | 2.24% | 0.47% |
 SLABSilicon Laboratories, Inc. COM | 0.20% | 2.57% | 0.20% |
 CRUSCirrus Logic, Inc. COM | 0.19% | 2.01% | 0.19% |
 ALGMAllegro MicroSystems Inc COM | 0.18% | 2.45% | 0.18% |
 OLEDUniversal Display Corporation | 0.09% | 2.56% | 0.09% |
Frequently Asked Questions
How much do MDYG and XSD overlap?
MDYG and XSD overlap by 4.1% of portfolio weight. They share 9 holdings (MDYG holds 245 positions and XSD holds 46), based on each fund's latest SEC-reported holdings.
Is it redundant to own both MDYG and XSD?
The two portfolios are 4.1% 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 XSD?
The largest positions held by both funds are MTSI, SITM, RMBS, LSCC and SMTC. Together the top 9 shared positions account for 100% of the total overlap.
What does MDYG own that XSD doesn't?
236 positions (95.7% of MDYG) are unique to MDYG, led by ATI, TWLO and FTI. In the other direction, 37 positions (79.0% of XSD) are unique to XSD.