SPY vs XLK: how much do they overlap?
SPDR S&P 500 ETF Trust (SPY) · Technology Select Sector SPDR ETF (XLK)
overlap by weight · 74 shared holdings
SPY: 504 holdings · XLK: 74 holdings · data as of 09-Jul-2026
Moderate overlap
What this means
SPY and XLK share a meaningful slice of holdings. They are related but not interchangeable; check the shared names below to see where your exposure doubles up.
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 SPY | in XLK |
|---|---|---|---|
| Nvidia Corp | NVDA | 7.57% | 13.18% |
| Apple Inc | AAPL | 7.16% | 12.47% |
| Microsoft Corp | MSFT | 4.4% | 7.66% |
| Broadcom Inc | AVGO | 2.93% | 5.1% |
| Micron Technology Inc | MU | 1.72% | 4.13% |
| Advanced Micro Devices | AMD | 1.37% | 4.56% |
| Intel Corp | INTC | 0.82% | 3.48% |
| Applied Materials Inc | AMAT | 0.72% | 3.06% |
| Cisco Systems Inc | CSCO | 0.72% | 3.06% |
| Lam Research Corp | LRCX | 0.68% | 2.89% |
FAQ
How much do SPY and XLK overlap?
SPY and XLK have a 37.6% overlap by weight, sharing 74 holdings (out of 504 in SPY and 74 in XLK), based on official issuer holdings as of 09-Jul-2026.
What does 37.6% overlap mean?
SPY and XLK share a meaningful slice of holdings. They are related but not interchangeable; check the shared names below to see where your exposure doubles up.
Which stocks do SPY 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.