Guardfolio Research · ETF Overlap
VGT vs ITOT Overlap: 34.9% of Weight in Shared Holdings
VGT (Vanguard Information Technology) and ITOT (iShares Core S&P Total US Stock Market) overlap by 34.9% of normalized weight through 300 shared securities, led by NVDA, AAPL, MSFT, AVGO, MU. Here is which positions contribute most and what the result can and cannot say about diversification.
Overlap Summary
Bottom line
VGT and ITOT share 34.9% of normalized fund weight across 300 securities. That is significant overlap: the funds reinforce some of the same positions, so combining them may diversify less than expected..
The Data
Exactly which securities VGT and ITOT share
The table below shows the largest contributors to overlap across the licensed full holdings, with each fund's normalized weight and the lesser weight that counts toward overlap.
| Data basis | Licensed full holdings |
|---|---|
| Fund dates | VGT 2026-08-24; ITOT 2026-08-24 |
| Coverage gate | At least 97% retained per fund |
| Holding | VGT weight | ITOT weight | Shared (min) |
|---|---|---|---|
| NVIDIA Corp (NVDA) | 17.17% | 6.98% | 6.98% |
| Apple Inc (AAPL) | 16.26% | 6.10% | 6.10% |
| Microsoft Corp (MSFT) | 10.97% | 4.82% | 4.82% |
| Broadcom Inc (AVGO) | 4.21% | 2.34% | 2.34% |
| Micron Technology Inc (MU) | 3.82% | 1.46% | 1.46% |
| Advanced Micro Devices Inc (AMD) | 3.18% | 1.04% | 1.04% |
| Intel Corp (INTC) | 1.65% | 0.59% | 0.59% |
| Cisco Systems Inc (CSCO) | 1.91% | 0.59% | 0.59% |
| Palantir Technologies Inc (PLTR) | 1.14% | 0.55% | 0.55% |
| Lam Research Corp (LRCX) | 1.54% | 0.53% | 0.53% |
| Applied Materials Inc (AMAT) | 1.69% | 0.52% | 0.52% |
| Palo Alto Networks Inc (PANW) | 1.16% | 0.39% | 0.39% |
| Oracle Corp (ORCL) | 0.90% | 0.33% | 0.33% |
| Texas Instruments Inc (TXN) | 1.07% | 0.32% | 0.32% |
| KLA Corp (KLAC) | 1.02% | 0.32% | 0.32% |
| Sandisk Corp (SNDK) | 0.75% | 0.32% | 0.32% |
| International Business Machines Corp (IBM) | 0.87% | 0.30% | 0.30% |
| Marvell Technology Inc (MRVL) | 0.70% | 0.28% | 0.28% |
| Crowdstrike Holdings Inc (CRWD) | 0.83% | 0.26% | 0.26% |
| Arista Networks Inc (ANET) | 0.83% | 0.26% | 0.26% |
| Total full-holdings overlap | 99.7% | 35.0% | 34.9% |
Showing the 20 largest contributors of 300 shared securities. The total uses every shared security.
The 34.9% figure uses all reported non-cash holdings and sums the lesser normalized weight for each shared security. VGT is dated 2026-08-24 with 99.963% retained coverage; ITOT is dated 2026-08-24 with 99.91% retained coverage.
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Sector Picture
VGT vs ITOT: sector exposure side by side
Two funds can share few holdings yet still concentrate the same sectors. Here is how the top sectors compare (32.0% combined sector overlap).
| Sector | VGT | ITOT |
|---|---|---|
| Technology | 100.0% | 32.2% |
| Financial Services | 0.0% | 12.8% |
| Consumer Discretionary | 0.0% | 10.5% |
| Industrials | 0.0% | 9.6% |
| Healthcare | 0.0% | 9.1% |
| Communication Services | 0.0% | 7.6% |
The Verdict
Should you hold both VGT and ITOT?
VGT and ITOT share 34.9% of normalized fund weight across 300 securities. That is significant overlap: the funds reinforce some of the same positions, so combining them may diversify less than expected.
FAQ
VGT vs ITOT overlap: common questions
How much do VGT and ITOT overlap?
VGT (Vanguard Information Technology) and ITOT (iShares Core S&P Total US Stock Market) overlap by approximately 34.9% of normalized weight across their licensed full holdings. They share 300 securities; the largest contributors include NVDA, AAPL, MSFT, AVGO, MU, AMD, INTC, CSCO. The separately dated sector reference shows 32.0% overlap.
What stocks do VGT and ITOT both hold?
Both VGT and ITOT hold NVIDIA Corp (NVDA), Apple Inc (AAPL), Microsoft Corp (MSFT), Broadcom Inc (AVGO), Micron Technology Inc (MU), Advanced Micro Devices Inc (AMD), Intel Corp (INTC), Cisco Systems Inc (CSCO) among their top positions. These shared names account for the 34.9% weight overlap.
Is it worth holding both VGT and ITOT?
VGT and ITOT share 34.9% of normalized fund weight across 300 securities. That is significant overlap: the funds reinforce some of the same positions, so combining them may diversify less than expected.
What is the difference between VGT and ITOT?
VGT is a technology-sector fund (US Sector – Technology, 0.10% expense ratio) and ITOT is a total US market fund (US Total Market, 0.03% expense ratio). The dataset includes 320 VGT holdings as of 2026-08-24 and 2429 ITOT holdings as of 2026-08-24.
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