iShares U.S. Technology ETF (IYW) and State Street® SPDR® Portfolio S&P 500® Growth ETF (SPYG) share 38 holdings, with roughly 58.3% of their portfolio weight overlapping.
Weight overlap
58.3%
Shared portfolio weight
Shared holdings
38
Securities in both funds
Funds
IYW · SPYG
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 IYW | In SPYG | Weight gap |
|---|---|---|---|
| NVDANVIDIA | 16.77% | 14.72% | 2.05%IYW |
| MSFTMicrosoft | 11.85% | 10.02% | 1.83%IYW |
| AAPLApple | 15.55% | 6.64% | 8.91%IYW |
| METAMETA PLATFORMS CLASS A | 3.67% | 4.64% | 0.97%SPYG |
| AVGOBROADCOM | 3.11% | 4.51% | 1.40%SPYG |
| MUMICRON TECHNOLOGY | 3.07% | 3.31% | 0.24%SPYG |
| AMDADVANCED MICRO DEVICES | 3.31% | 2.78% | 0.53%IYW |
| GOOGLAlphabet | 2.46% | 5.44% | 2.98%SPYG |
| GOOGALPHABET CL C | 1.99% | 4.36% | 2.37%SPYG |
| PLTRPALANTIR TECHNOLOGIES A | 2.05% | 1.20% | 0.85%IYW |
| LRCXLAM RESEARCH | 1.84% | 1.04% | 0.80%IYW |
| AMATAPPLIED MATERIALS | 1.80% | 1.02% | 0.78%IYW |
| CRWDCROWDSTRIKE HOLDINGS A | 1.25% | 0.72% | 0.53%IYW |
| SNDKSANDISK | 1.22% | 0.69% | 0.53%IYW |
| KLACKLA | 1.17% | 0.66% | 0.51%IYW |
| APHAMPHENOL CL A | 0.97% | 0.55% | 0.42%IYW |
| PANWPALO ALTO NETWORKS | 1.50% | 0.48% | 1.02%IYW |
| ORCLORACLE | 1.14% | 0.34% | 0.80%IYW |
| IBMInternational Business Machines | 1.02% | 0.30% | 0.72%IYW |
| MRVLMARVELL TECHNOLOGY | 1.08% | 0.29% | 0.79%IYW |
| NOWSERVICENOW | 0.68% | 0.24% | 0.44%IYW |
| APPAPPLOVIN CLASS A | 0.36% | 0.23% | 0.13%IYW |
| DDOGDATADOG CLASS A | 0.40% | 0.23% | 0.17%IYW |
| GLWCORNING | 0.58% | 0.23% | 0.35%IYW |
| DASHDOORDASH A | 0.34% | 0.19% | 0.15%IYW |
| FTNTFORTINET | 0.52% | 0.19% | 0.33%IYW |
| MPWRMONOLITHIC POWER SYSTEMS | 0.30% | 0.18% | 0.12%IYW |
| CDNSCADENCE DESIGN SYS | 0.42% | 0.15% | 0.27%IYW |
| COHRCOHERENT | 0.26% | 0.15% | 0.11%IYW |
| INTUINTUIT | 0.35% | 0.12% | 0.23%IYW |
| FLEXFLEX LTD | 0.20% | 0.11% | 0.09%IYW |
| PPure Storage Class A | 0.18% | 0.11% | 0.07%IYW |
| TERTERADYNE | 0.29% | 0.10% | 0.19%IYW |
| ADSKAUTODESK | 0.21% | 0.07% | 0.14%IYW |
| VRSNVERISIGN | 0.11% | 0.06% | 0.05%IYW |
| JBLJABIL | 0.15% | 0.05% | 0.10%IYW |
| WDAYWORKDAY CLASS A | 0.18% | 0.05% | 0.13%IYW |
| RDDTReddit Class A | 0.10% | 0.04% | 0.06%IYW |
1–20 of 38
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 IYW | In SPYG |
|---|---|---|
Technology | 90.6% | 53.8% |
Communication Services | 8.7% | 15.7% |
Financial Services | 0.2% | 8.6% |
Consumer Cyclical | 0.4% | 7.9% |
Healthcare | 0.0% | 6.2% |
Industrials | 0.1% | 5.5% |
Consumer Defensive | 0.0% | 1.0% |
Real Estate | 0.0% | 0.6% |
Basic Materials | 0.0% | 0.4% |
Utilities | 0.0% | 0.3% |
Weights are of each fund’s classified equity holdings.
IYW
SPYG
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.