VTI vs VGT Overlap: You Already Own These Stocks — Here Is How Much
VTI holds the full US market, including all of VGT's IT sector stocks. VTI's IT exposure is already 30%+. Adding VGT concentrates you further in hardware, software, and semiconductors.
What the VTI and VGT Overlap Means
Every stock in VGT is also in VTI. VGT tracks the MSCI US Investable Market Information Technology index — the IT sector of the US market. VTI holds the entire US market, including that IT sector at its natural market-cap weight. The difference is concentration: VGT holds Apple at roughly 17% of its portfolio; VTI holds Apple at about 6.5%. The same company, held at 2.5 times the weight.
VTI's IT sector allocation is approximately 30-32% of total portfolio weight. That is already a significant technology tilt from passive market-cap weighting — technology has grown to dominate US market cap over the past 15 years. Adding VGT on top increases that concentration to 40%, 50%, or higher depending on your allocation between the two funds.
If you have a thesis that IT companies will continue to outperform the broader market, VGT is a clean, 0.10% way to express it. If you are adding VGT because you want "more tech in your portfolio" without a specific outperformance thesis, be aware that VTI's existing 30%+ IT weight means you already have substantial technology exposure before adding a single share of VGT.
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Top-10 holdings data, updated regularly from public sources. Shared position counts reflect top-10 positions only — not full portfolio overlap. For broad market funds like VTI and VOO, true full-portfolio overlap is significantly higher than the top-10 figure. Nothing here is personalized financial advice. Full disclosures.
Frequently Asked Questions
Yes — completely at the holdings level. Every company in VGT is also in VTI. VGT holds the IT sector of the US market; VTI holds the entire US market including the IT sector. The difference is weight: VGT holds IT companies at 5-8x the concentration of VTI.
Approximately 30-32% of VTI's total portfolio weight is in the IT sector (GICS classification). This includes Apple, Microsoft, Nvidia, Broadcom, and others. As technology companies have grown to dominate US market cap, VTI's IT weighting has increased naturally over time.
Only if you want to express an active thesis that IT sector companies will outperform the broader US market. VGT does not add diversification to VTI — it increases concentration in companies you already own. For genuine diversification, adding international exposure (VXUS) is more useful than adding a sector tilt.
VTI (Vanguard Total Stock Market ETF) holds all ~3,700 US stocks at market-cap weights. VGT (Vanguard Information Technology ETF) holds ~400 IT sector stocks at market-cap weights within that sector. VTI costs 0.03%; VGT costs 0.10%. VGT is a sub-portfolio of VTI, concentrated in one sector at much higher weight per company.
VGT is purer IT sector (GICS-classified). QQQ is Nasdaq-100, which includes companies like Amazon, Alphabet, and Meta that GICS classifies outside IT. VGT includes Visa and Mastercard; QQQ excludes all financial sector companies. For pure IT sector, VGT. For broad Nasdaq-listed growth companies, QQQ. VGT charges 0.10%; QQQ charges 0.20% (QQQM charges 0.15%).