iShares Core S&P Total U.S. Stock Market ETF (ITOT) and iShares U.S. Technology ETF (IYW) share 145 holdings, with roughly 37.6% of their portfolio weight overlapping.
Both funds' holdings are as of November 5, 2026.
Fund pages: ITOT (iShares Core S&P Total U.S. Stock Market ETF) · IYW (iShares U.S. Technology ETF)
Weight overlap
37.6%
Shared portfolio weight
Shared holdings
145
Securities in both funds
Funds
ITOT · IYW
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 IYW | Weight gap |
|---|---|---|---|
| AAPLAPPLE | 7.05% | 18.82% | 11.77%IYW |
| NVDANVIDIA | 6.17% | 16.02% | 9.85%IYW |
| MSFTMICROSOFT | 5.59% | 15.07% | 9.48%IYW |
| GOOGLALPHABET | 2.33% | 2.40% | 0.07%IYW |
| AVGOBROADCOM | 1.95% | 3.06% | 1.11%IYW |
| GOOGALPHABET CL C | 1.88% | 1.95% | 0.07%IYW |
| METAMETA PLATFORMS | 1.87% | 3.38% | 1.50%IYW |
| MUMICRON TECHNOLOGY | 1.04% | 2.20% | 1.16%IYW |
| AMDADVANCED MICRO DEVICES | 0.93% | 2.51% | 1.58%IYW |
| PLTRPALANTIR TECHNOLOGIES A | 0.50% | 1.95% | 1.44%IYW |
| INTCINTEL | 0.36% | 1.35% | 0.98%IYW |
| PANWPALO ALTO NETWORKS | 0.36% | 1.43% | 1.07%IYW |
| TXNTEXAS INSTRUMENTS | 0.36% | 1.43% | 1.07%IYW |
| AMATAPPLIED MATERIALS | 0.36% | 1.43% | 1.07%IYW |
| IBMINTERNATIONAL BUSINESS MACHINES | 0.33% | 1.31% | 0.99%IYW |
| LRCXLAM RESEARCH | 0.33% | 1.31% | 0.98%IYW |
| ORCLORACLE | 0.32% | 1.15% | 0.83%IYW |
| CRWDCROWDSTRIKE HOLDINGS | 0.31% | 1.23% | 0.92%IYW |
| CRMSALESFORCE | 0.26% | 1.00% | 0.74%IYW |
| APHAMPHENOL | 0.25% | 0.99% | 0.75%IYW |
| ADIANALOG DEVICES | 0.25% | 1.00% | 0.75%IYW |
| KLACKLA | 0.24% | 0.96% | 0.72%IYW |
| QCOMQUALCOMM | 0.24% | 0.93% | 0.70%IYW |
| SNDKSANDISK | 0.17% | 0.66% | 0.50%IYW |
| MRVLMARVELL TECHNOLOGY | 0.16% | 0.66% | 0.49%IYW |
| NOWSERVICENOW | 0.15% | 0.59% | 0.45%IYW |
| ADBEADOBE | 0.14% | 0.55% | 0.42%IYW |
| INTUINTUIT | 0.14% | 0.54% | 0.40%IYW |
| APPAPPLOVIN | 0.14% | 0.48% | 0.35%IYW |
| WDCWESTERN DIGITAL | 0.14% | 0.52% | 0.38%IYW |
| DELL | 0.13% | 0.54% | 0.40%IYW |
| SNOWSnowflake | 0.13% | 0.51% | 0.38%IYW |
| CDNSCADENCE DESIGN SYS | 0.12% | 0.49% | 0.37%IYW |
| SNPSSYNOPSYS | 0.12% | 0.46% | 0.34%IYW |
| GLWCORNING | 0.12% | 0.46% | 0.35%IYW |
| NETCloudflare Class A | 0.11% | 0.44% | 0.33%IYW |
| FTNTFORTINET | 0.11% | 0.42% | 0.31%IYW |
| DASHDOORDASH A | 0.10% | 0.38% | 0.29%IYW |
| HPEHEWLETT PACKARD ENTERPRISE | 0.08% | 0.33% | 0.25%IYW |
| DDOGDATADOG CLASS A | 0.08% | 0.32% | 0.24%IYW |
| ADSKAUTODESK | 0.08% | 0.32% | 0.24%IYW |
| MPWRMONOLITHIC POWER SYSTEMS | 0.08% | 0.30% | 0.22%IYW |
| ROPROPER TECHNOLOGIES | 0.07% | 0.27% | 0.21%IYW |
| MSTRMicroStrategy Class A | 0.07% | 0.26% | 0.19%IYW |
| WDAYWORKDAY | 0.06% | 0.22% | 0.17%IYW |
| MCHPMICROCHIP TECHNOLOGY | 0.05% | 0.19% | 0.14%IYW |
| COHRCOHERENT | 0.05% | 0.18% | 0.13%IYW |
| NTAPNETAPP | 0.05% | 0.19% | 0.14%IYW |
| TERTERADYNE | 0.05% | 0.19% | 0.14%IYW |
| PPure Storage Class A | 0.04% | 0.16% | 0.12%IYW |
| TWLOTwilio Class A | 0.04% | 0.17% | 0.12%IYW |
| CTSHCOGNIZANT TECH SOLUTIONS A | 0.04% | 0.17% | 0.13%IYW |
| TEAMATLASSIAN | 0.04% | 0.16% | 0.12%IYW |
| OKTAOkta | 0.04% | 0.16% | 0.12%IYW |
| ALABAstera Labs | 0.04% | 0.16% | 0.12%IYW |
| HPQHP | 0.04% | 0.15% | 0.11%IYW |
| VRSNVERISIGN | 0.04% | 0.14% | 0.11%IYW |
| JBLJABIL | 0.03% | 0.14% | 0.10%IYW |
| FLEXFLEX LTD | 0.03% | 0.14% | 0.10%IYW |
| ONON SEMICONDUCTOR | 0.03% | 0.14% | 0.11%IYW |
| MDBMongoDB Class A | 0.03% | 0.13% | 0.10%IYW |
| ZMZoom Video Communications Inc - Class A | 0.03% | 0.13% | 0.10%IYW |
| QQNITY ELECTRONICS | 0.03% | 0.13% | 0.10%IYW |
| ZSZscaler | 0.03% | 0.12% | 0.09%IYW |
| PTC | 0.03% | 0.12% | 0.09%IYW |
| CDWCDW CORP/DE | 0.03% | 0.11% | 0.09%IYW |
| ENTGEntegris | 0.03% | 0.11% | 0.08%IYW |
| CRDOCredo Technology Group Holding Ltd. | 0.03% | 0.11% | 0.08%IYW |
| SWKSSKYWORKS SOLUTIONS | 0.03% | 0.10% | 0.08%IYW |
| TOSTToast Class A | 0.03% | 0.09% | 0.07%IYW |
| FFIVF5 | 0.02% | 0.10% | 0.07%IYW |
| UUnity Software | 0.02% | 0.10% | 0.07%IYW |
| RBRKRubrik Class A | 0.02% | 0.09% | 0.07%IYW |
| SNXTD SYNNEX | 0.02% | 0.09% | 0.07%IYW |
| LDOSLEIDOS | 0.02% | 0.10% | 0.07%IYW |
| CRWVCoreWeave Class A | 0.02% | 0.08% | 0.05%IYW |
| TYLTYLER TECHNOLOGIES | 0.02% | 0.10% | 0.08%IYW |
| GENGEN DIGITAL | 0.02% | 0.09% | 0.07%IYW |
| SSNCSS&C Technologies Holdings | 0.02% | 0.09% | 0.07%IYW |
| NTNXNUTANIX A | 0.02% | 0.09% | 0.07%IYW |
| IOTSamsara Class A | 0.02% | 0.08% | 0.06%IYW |
| GDDYGODADDY CLASS A | 0.02% | 0.09% | 0.06%IYW |
| SMCISUPER MICRO COMPUTER | 0.02% | 0.09% | 0.06%IYW |
| DOCUDocusign Class A | 0.02% | 0.09% | 0.07%IYW |
| MANHManhattan Associates | 0.02% | 0.08% | 0.06%IYW |
| GWREGuidewire Software | 0.02% | 0.08% | 0.06%IYW |
| LSCCLattice Semiconductor | 0.02% | 0.08% | 0.06%IYW |
| RDDTReddit Class A | 0.02% | 0.07% | 0.05%IYW |
| CACICACI International Class A | 0.02% | 0.07% | 0.06%IYW |
| MTSIMACOM Technology Solutions Holdings | 0.02% | 0.07% | 0.05%IYW |
| DTDynatrace | 0.02% | 0.07% | 0.05%IYW |
| ITGARTNER | 0.02% | 0.07% | 0.06%IYW |
| BMNRBITMINE IMMERSION TECHNOLOGI | 0.02% | 0.06% | 0.05%IYW |
| AKAMAKAMAI TECHNOLOGIES | 0.02% | 0.06% | 0.05%IYW |
| IONQIonQ | 0.02% | 0.06% | 0.04%IYW |
| FNFabrinet | 0.01% | 0.06% | 0.04%IYW |
| HUBSHubSpot | 0.01% | 0.06% | 0.04%IYW |
| PAYCPaycom Software | 0.01% | 0.06% | 0.04%IYW |
| MTCHMatch Group | 0.01% | 0.05% | 0.04%IYW |
| PINSPinterest Class A | 0.01% | 0.05% | 0.04%IYW |
| CARTMaplebear | 0.01% | 0.05% | 0.04%IYW |
| PCORProcore Technologies | 0.01% | 0.05% | 0.04%IYW |
| ARWARROW ELECTRONICS | 0.01% | 0.05% | 0.04%IYW |
| EPAMEPAM Systems | 0.01% | 0.05% | 0.04%IYW |
| SMTCSemtech | 0.01% | 0.05% | 0.04%IYW |
| SITMSiTime | 0.01% | 0.04% | 0.03%IYW |
| ONTOOnto Innovation | 0.01% | 0.04% | 0.03%IYW |
| ESTCElastic NV | 0.01% | 0.04% | 0.03%IYW |
| RMBSRambus | 0.01% | 0.04% | 0.03%IYW |
| SSentinelOne Class A | 0.01% | 0.04% | 0.03%IYW |
| GTLBGitlab Class A | 0.01% | 0.04% | 0.03%IYW |
| AEISAdvanced Energy Industries | 0.01% | 0.04% | 0.03%IYW |
| BSYBentley Systems Class B | 0.01% | 0.04% | 0.03%IYW |
| SANMSanmina | 0.01% | 0.04% | 0.03%IYW |
| DOCNDigitalOcean Holdings | 0.01% | 0.04% | 0.03%IYW |
| TTMITTM Technologies | 0.01% | 0.04% | 0.03%IYW |
| SAICScience Applications International | 0.01% | 0.03% | 0.03%IYW |
| AVTAVNET | 0.01% | 0.04% | 0.03%IYW |
| MBGLMOBILITY GLOBAL 144A | 0.01% | 0.03% | 0.02%IYW |
| CRUSCirrus Logic | 0.01% | 0.03% | 0.02%IYW |
| RNGRingCentral Class A | 0.01% | 0.03% | 0.02%IYW |
| FORMFormFactor | 0.01% | 0.03% | 0.02%IYW |
| APPFAppfolio | 0.01% | 0.03% | 0.02%IYW |
| PATHUiPath Class A | 0.01% | 0.03% | 0.02%IYW |
| DBXDropbox Class A | 0.01% | 0.03% | 0.02%IYW |
| FIGFigma Class A | 0.01% | 0.02% | 0.01%IYW |
| KBR | 0.01% | 0.03% | 0.02%IYW |
| WULFTerawulf | 0.01% | 0.02% | 0.01%IYW |
| CCCCCC Intelligent Solutions Holdings | 0.01% | 0.02% | 0.02%IYW |
| OLEDUniversal Display | 0.01% | 0.02% | 0.02%IYW |
| DLBDolby Laboratories Class A | 0.01% | 0.02% | 0.02%IYW |
| APLDApplied Digital | 0.01% | 0.02% | 0.02%IYW |
| KDKYNDRYL HOLDINGS | 0.01% | 0.02% | 0.01%IYW |
| AMKRAmkor Technology | 0.01% | 0.02% | 0.02%IYW |
| ALGMAllegro MicroSystems | <0.01% | 0.02% | 0.01%IYW |
| PEGAPegasystems | <0.01% | 0.02% | 0.01%IYW |
| PPLIPeople | <0.01% | 0.01% | 0.01%IYW |
| FIGRFigure Technology Solutions Class A | <0.01% | 0.02% | 0.01%IYW |
| PSNParsons | <0.01% | 0.02% | 0.01%IYW |
| KVYOKlaviyo Class A | <0.01% | 0.02% | 0.01%IYW |
| IPGPIPG Photonics | <0.01% | 0.01% | 0.01%IYW |
| NIQNIQ Global Intelligence | <0.01% | 0.01% | ≈ even |
| SAILSailPoint | <0.01% | 0.01% | ≈ even |
| INGMIngram Micro Holding | <0.01% | 0.01% | 0.01%IYW |
| QNTQuantinuum Class A | <0.01% | <0.01% | ≈ even |
1–20 of 145
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 IYW |
|---|---|---|
Technology | 34.3% | 90.9% |
Communication Services | 8.2% | 8.4% |
Financial Services | 12.8% | 0.1% |
Healthcare | 11.1% | 0.0% |
Consumer Cyclical | 9.7% | 0.4% |
Industrials | 8.7% | 0.1% |
Consumer Defensive | 5.0% | 0.0% |
Energy | 3.7% | 0.0% |
Real Estate | 2.4% | 0.0% |
Utilities | 2.1% | 0.0% |
Basic Materials | 2.0% | 0.0% |
Weights are of each fund’s classified equity holdings.
ITOT
IYW
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.