MDYG vs XAR: Holdings Overlap
MDYGState Street® SPDR® S&P 400™ Mid Cap Growth ETF
State Street (SPDR) · 245 holdings · $2.9B · as of 2026-08-06
XARState Street® SPDR® S&P® Aerospace & Defense ETF
State Street (SPDR) · 47 holdings · $6.4B · as of 2026-08-06
How similar are MDYG and XAR?
State Street® SPDR® S&P 400™ Mid Cap Growth ETF (MDYG, by State Street (SPDR)) holds 245 positions; State Street® SPDR® S&P® Aerospace & Defense ETF (XAR, by State Street (SPDR)) holds 47. They have 10 holdings in common, and by portfolio weight the two funds are 8.6% identical. In practical terms the pair is lightly overlapping, with most of each portfolio distinct.
- Overlap by Weight
- 8.6%Sum of the smaller weight of each shared holding
- Shared Holdings
- 10MDYG holds 245 · XAR holds 47
- Weight in Shared Holdings
- MDYG 9%·XAR 28%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
235 of 245 positions (91.3% of the fund) are not held by XAR. Showing the top 30 by weight.
Sector Breakdown
| Sector | MDYG | XAR |
|---|---|---|
| Industrials | 29.8% | 98.4% |
| Information Technology | 20.2% | 0.0% |
| 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% | 1.6% |
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, 2% of XAR).
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% |
| XAR | +2.7% | +19.0% | +33.7% | +33.2% | +18.5% | +18.1% | 0.28% |
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 XAR →
Shared Holdings(10)
The top 10 shared positions account for 100% of the overlap, led by ATI, CRS and CW.
 ATIATI Inc COMMON STOCK | 1.63% | 3.15% | 1.63% |
|---|---|---|---|
 CRSCarpenter Technology Corporation COM | 1.48% | 2.76% | 1.48% |
 CWCurtiss-Wright Corporation | 1.41% | 2.57% | 1.41% |
 WWDWoodward Inc. COM | 1.16% | 2.58% | 1.16% |
 BWXTBWX Technologies Inc. COM | 0.81% | 2.36% | 0.81% |
 MOG-AMoog, Inc., Class A | 0.62% | 2.78% | 0.62% |
 KTOSKratos Defense & Security Solutions, Inc. COM NEW | 0.57% | 2.71% | 0.57% |
 HXLHexcel Corporation COM | 0.42% | 2.91% | 0.42% |
 AVAVAeroVironment, Inc. COM | 0.29% | 2.56% | 0.29% |
 SAROStandardAero Inc. COM | 0.19% | 3.13% | 0.19% |
Frequently Asked Questions
How much do MDYG and XAR overlap?
MDYG and XAR overlap by 8.6% of portfolio weight. They share 10 holdings (MDYG holds 245 positions and XAR holds 47), based on each fund's latest SEC-reported holdings.
Is it redundant to own both MDYG and XAR?
The two portfolios are 8.6% identical by weight. Owning both is not redundant. Most of each portfolio is distinct, so the funds can serve different roles.
What are the biggest shared holdings of MDYG and XAR?
The largest positions held by both funds are ATI, CRS, CW, WWD and BWXT. Together the top 10 shared positions account for 100% of the total overlap.
What does MDYG own that XAR doesn't?
235 positions (91.3% of MDYG) are unique to MDYG, led by TWLO, FTI and P. In the other direction, 37 positions (72.4% of XAR) are unique to XAR.