ITOT vs XLK: how much do they overlap?
iShares Core S&P Total U.S. Stock Market ETF (ITOT) · Technology Select Sector SPDR ETF (XLK)
overlap by weight · 74 shared holdings
ITOT: 2470 holdings (as of 2026-03-31) · XLK: 74 holdings (as of 09-Jul-2026)
Note: the two funds' latest official filings have different dates, which can understate overlap slightly for funds tracking similar indexes.
Low overlap
What this means
ITOT and XLK hold mostly different stocks. Combining them genuinely spreads your exposure across different parts of the market.
Overlap by weight sums the smaller of the two funds' weights for every stock they both hold — it answers "how much of my money is in the same stocks either way?" See methodology.
Top shared holdings
| Company | Ticker | in ITOT | in XLK |
|---|---|---|---|
| NVIDIA Corp. | NVDA | 6.69% | 13.18% |
| Apple, Inc. | AAPL | 5.88% | 12.47% |
| Microsoft Corp. | MSFT | 4.34% | 7.66% |
| Broadcom, Inc. | AVGO | 2.32% | 5.1% |
| Micron Technology, Inc. | MU | 0.6% | 4.13% |
| Palantir Technologies, Inc. | PLTR | 0.53% | 1.94% |
| Advanced Micro Devices, Inc. | AMD | 0.52% | 4.56% |
| Cisco Systems, Inc. | CSCO | 0.48% | 3.06% |
| Applied Materials, Inc. | AMAT | 0.43% | 3.06% |
| Lam Research Corp. | LRCX | 0.42% | 2.89% |
FAQ
How much do ITOT and XLK overlap?
ITOT and XLK have a 29.2% overlap by weight, sharing 74 holdings (out of 2470 in ITOT and 74 in XLK), based on official issuer holdings as of 2026-03-31.
What does 29.2% overlap mean?
ITOT and XLK hold mostly different stocks. Combining them genuinely spreads your exposure across different parts of the market.
Which stocks do ITOT and XLK both hold?
The largest shared positions are NVIDIA Corp., Apple, Inc., Microsoft Corp., Broadcom, Inc., Micron Technology, Inc.. The full list of top shared holdings with weights in each fund is shown on this page.