Vanguard Morningstar Mega Cap Growth ETF (MGK) and State Street® SPDR® Portfolio S&P 500® ETF (SPYM) share 50 holdings, with roughly 50.2% of their portfolio weight overlapping.
Holdings as of: MGK September 30, 2026 · SPYM October 22, 2026.
Fund pages: MGK (Vanguard Morningstar Mega Cap Growth ETF) · SPYM (State Street® SPDR® Portfolio S&P 500® ETF)
Weight overlap
50.2%
Shared portfolio weight
Shared holdings
50
Securities in both funds
Funds
MGK · SPYM
Compared side by side
Interactive charts, sector exposure, combined allocation, and the full overlap heatmap.
Every holding both funds own, ranked by shared exposure (how much of the position they hold in common). The weight gap shows which fund tilts more heavily into it.
| Holding | In MGK | In SPYM | Weight gap |
|---|---|---|---|
| NVDANVIDIA | 13.69% | 7.77% | 5.92%MGK |
| AAPLAPPLE | 12.53% | 7.69% | 4.84%MGK |
| MSFTMICROSOFT | 9.46% | 5.85% | 3.61%MGK |
| AMZNAMAZON.COM | 4.23% | 3.72% | 0.51%MGK |
| GOOGLALPHABET | 4.98% | 2.88% | 2.10%MGK |
| AVGOBROADCOM | 4.30% | 2.33% | 1.97%MGK |
| GOOGALPHABET CL C | 3.95% | 2.31% | 1.64%MGK |
| METAMETA PLATFORMS | 4.96% | 2.17% | 2.79%MGK |
| TSLATESLA | 3.14% | 1.60% | 1.54%MGK |
| LLYELI LILLY | 3.11% | 1.58% | 1.53%MGK |
| AMDADVANCED MICRO DEVICES | 3.22% | 1.25% | 1.97%MGK |
| VVISA | 1.85% | 1.07% | 0.78%MGK |
| MAMASTERCARD | 1.48% | 0.77% | 0.71%MGK |
| PLTRPALANTIR TECHNOLOGIES A | 1.45% | 0.68% | 0.77%MGK |
| INTCINTEL | 1.87% | 0.64% | 1.23%MGK |
| AMATAPPLIED MATERIALS | 1.45% | 0.45% | 1.00%MGK |
| LRCXLAM RESEARCH | 1.45% | 0.44% | 1.01%MGK |
| PANWPALO ALTO NETWORKS | 1.22% | 0.44% | 0.78%MGK |
| NFLXNETFLIX | 1.05% | 0.42% | 0.63%MGK |
| CRWDCROWDSTRIKE HOLDINGS | 1.04% | 0.37% | 0.67%MGK |
| GEVGE VERNOVA | 0.97% | 0.33% | 0.64%MGK |
| ORCLORACLE | 0.89% | 0.33% | 0.56%MGK |
| MRVLMARVELL TECHNOLOGY | 0.95% | 0.30% | 0.65%MGK |
| KLACKLA | 0.99% | 0.29% | 0.70%MGK |
| SNDKSANDISK | 0.98% | 0.28% | 0.70%MGK |
| ANETARISTA NETWORKS | 0.88% | 0.27% | 0.61%MGK |
| APHAMPHENOL | 0.84% | 0.27% | 0.57%MGK |
| WELLWELLTOWER OP | 0.71% | 0.26% | 0.45%MGK |
| NOWSERVICENOW | 0.62% | 0.25% | 0.37%MGK |
| TJXTJX Cos | 0.44% | 0.25% | 0.19%MGK |
| ISRGINTUITIVE SURGICAL | 0.67% | 0.24% | 0.43%MGK |
| BABOEING | 0.63% | 0.22% | 0.41%MGK |
| STXSEAGATE TECHNOLOGY HOLDINGS | 0.86% | 0.22% | 0.64%MGK |
| VRTXVERTEX PHARMACEUTICALS | 0.61% | 0.21% | 0.40%MGK |
| WDCWESTERN DIGITAL | 0.68% | 0.19% | 0.49%MGK |
| BKNGBOOKING HOLDINGS | 0.55% | 0.18% | 0.37%MGK |
| FTNTFORTINET | 0.42% | 0.16% | 0.26%MGK |
| GLWCORNING | 0.58% | 0.15% | 0.43%MGK |
| EQIXEQUINIX | 0.52% | 0.14% | 0.38%MGK |
| CDNSCADENCE DESIGN SYS | 0.52% | 0.13% | 0.39%MGK |
| MARMARRIOTT INTERNATIONAL | 0.35% | 0.13% | 0.22%MGK |
| CTASCINTAS NO 2 | 0.32% | 0.12% | 0.20%MGK |
| SNPSSYNOPSYS | 0.50% | 0.12% | 0.38%MGK |
| ABNBAIRBNB | 0.40% | 0.11% | 0.29%MGK |
| APPAPPLOVIN | 0.45% | 0.11% | 0.34%MGK |
| ECLECOLAB | 0.43% | 0.11% | 0.32%MGK |
| MCOMOODYS | 0.41% | 0.11% | 0.30%MGK |
| ORLYOREILLY AUTOMOTIVE | 0.42% | 0.11% | 0.31%MGK |
| MNSTMONSTER BEVERAGE | 0.38% | 0.10% | 0.28%MGK |
| IBKRINTERACTIVE BROKERS GRO CL A | 0.32% | 0.06% | 0.26%MGK |
1–20 of 50
How each fund's equity holdings break down by sector, side by side — the clearest read on where the two funds tilt differently.
| Sector | In MGK | In SPYM |
|---|---|---|
Technology | 62.0% | 38.3% |
Communication Services | 15.5% | 9.3% |
Consumer Cyclical | 9.6% | 9.1% |
Financial Services | 4.1% | 11.9% |
Healthcare | 4.4% | 9.9% |
Industrials | 2.4% | 7.5% |
Consumer Defensive | 0.4% | 4.9% |
Energy | 0.0% | 3.7% |
Real Estate | 1.2% | 1.8% |
Basic Materials | 0.4% | 1.6% |
Utilities | 0.0% | 2.0% |
Weights are of each fund’s classified equity holdings.
MGK
SPYM
Two ETFs overlap when they hold the same underlying securities. Holding both funds can leave you more concentrated than you think — you may own the same large companies twice, at a combined weight neither fund shows on its own. The weight overlap above is the share of portfolio weight the two funds hold in common: for every security both own, it counts only the smaller of the two weights (the slice you genuinely double up on). 0% means completely different books; 100% means effectively identical funds.