iShares Core S&P Total U.S. Stock Market ETF (ITOT) and State Street® SPDR® S&P® Semiconductor ETF (XSD) share 46 holdings, with roughly 10.1% of their portfolio weight overlapping.
Weight overlap
10.1%
Shared portfolio weight
Shared holdings
46
Securities in both funds
Funds
ITOT · XSD
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 ITOT | In XSD | Weight gap |
|---|---|---|---|
| NVDANVIDIA | 7.10% | 2.75% | 4.35%ITOT |
| AVGOBROADCOM | 2.66% | 2.82% | 0.16%XSD |
| MUMICRON TECHNOLOGY | 1.33% | 2.41% | 1.08%XSD |
| AMDADVANCED MICRO DEVICES | 1.07% | 2.62% | 1.55%XSD |
| INTCINTEL | 0.63% | 2.33% | 1.70%XSD |
| TXNTEXAS INSTRUMENTS | 0.34% | 2.49% | 2.15%XSD |
| ADIANALOG DEVICES | 0.25% | 2.44% | 2.19%XSD |
| MRVLMARVELL TECHNOLOGY | 0.25% | 2.12% | 1.87%XSD |
| QCOMQUALCOMM | 0.23% | 2.15% | 1.92%XSD |
| MPWRMONOLITHIC POWER SYSTEMS | 0.09% | 2.33% | 2.24%XSD |
| NXPINXP SEMICONDUCTORS NV | 0.08% | 2.06% | 1.98%XSD |
| ALABAstera Labs | 0.06% | 2.48% | 2.42%XSD |
| CRDOCredo Technology Group Holding Ltd. | 0.05% | 2.58% | 2.53%XSD |
| MCHPMICROCHIP TECHNOLOGY | 0.05% | 2.36% | 2.31%XSD |
| FSLRFIRST SOLAR | 0.04% | 2.46% | 2.42%XSD |
| ONON SEMICONDUCTOR | 0.04% | 1.81% | 1.77%XSD |
| MTSIMACOM Technology Solutions Holdings | 0.03% | 2.15% | 2.12%XSD |
| LSCCLattice Semiconductor | 0.02% | 2.41% | 2.39%XSD |
| SITMSiTime | 0.02% | 2.68% | 2.66%XSD |
| SMTCSemtech | 0.02% | 2.22% | 2.20%XSD |
| ALGMAllegro MicroSystems | 0.01% | 2.41% | 2.40%XSD |
| CBRSCerebras Systems | 0.01% | 2.34% | 2.33%XSD |
| CRUSCirrus Logic | 0.01% | 1.94% | 1.93%XSD |
| DIODDiodes | 0.01% | 2.57% | 2.56%XSD |
| MXLMaxLinear | 0.01% | 2.56% | 2.55%XSD |
| OLEDUniversal Display | 0.01% | 2.56% | 2.55%XSD |
| PIImpinj | 0.01% | 3.67% | 3.66%XSD |
| QRVOQorvo | 0.01% | 2.56% | 2.55%XSD |
| RGTIRigetti Computing | 0.01% | 2.26% | 2.25%XSD |
| RMBSRambus | 0.01% | 1.80% | 1.79%XSD |
| SLABSilicon Laboratories | 0.01% | 2.47% | 2.46%XSD |
| SWKSSKYWORKS SOLUTIONS | 0.01% | 2.46% | 2.45%XSD |
| SYNASynaptics | 0.01% | 2.02% | 2.01%XSD |
| AMBAAmbarella | 0.00% | 3.40% | 3.40%XSD |
| AMBQAmbiq Micro | 0.00% | 0.80% | 0.80%XSD |
| AOSLAlpha & Omega Semiconductor Ltd. | 0.00% | 1.66% | 1.66%XSD |
| CEVA | 0.00% | 0.91% | 0.91%XSD |
| INDIindie Semiconductor Class A | 0.00% | 1.67% | 1.67%XSD |
| KOPNKopin | 0.00% | 1.28% | 1.28%XSD |
| MRAMEverspin Technologies | 0.00% | 0.50% | 0.50%XSD |
| NVECNVE | 0.00% | 0.56% | 0.56%XSD |
| NVTSNavitas Semiconductor Class A | 0.00% | 1.66% | 1.66%XSD |
| PENGPenguin Solutions | 0.00% | 2.45% | 2.45%XSD |
| POWIPower Integrations | 0.00% | 2.12% | 2.12%XSD |
| TET1 Energy | 0.00% | 1.86% | 1.86%XSD |
| WOLFWolfspeed | 0.00% | 1.86% | 1.86%XSD |
1–20 of 46
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 ITOT | In XSD |
|---|---|---|
Technology | 36.7% | 98.1% |
Financial Services | 12.3% | 0.0% |
Industrials | 9.4% | 1.9% |
Consumer Cyclical | 9.4% | 0.0% |
Healthcare | 9.3% | 0.0% |
Communication Services | 9.1% | 0.0% |
Consumer Defensive | 4.3% | 0.0% |
Energy | 3.4% | 0.0% |
Real Estate | 2.2% | 0.0% |
Utilities | 2.0% | 0.0% |
Basic Materials | 1.8% | 0.0% |
Weights are of each fund’s classified equity holdings.
ITOT
XSD
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.