CSPX vs VUG ETF holdings comparison
iShares Core S&P 500 UCITS ETF (USD Acc) (CSPX) · Vanguard Growth ETF (VUG)
CSPX and VUG overlap by 56.5% by portfolio weight. The remaining 43.5 percentage points are not counted as shared holdings weight by this calculation. They share 128 stocks; the largest shared position is Nvidia (NVDA), contributing 7.80% to the overlap.
The holdings dates differ. This can slightly understate overlap for funds tracking similar indexes.
What this means
CSPX and VUG share a material portion of their portfolio weight in the same underlying stocks. OverlapCheck labels this "moderate holdings overlap" using house ranges of 70% or more, 30% to under 70%, and under 30%. These descriptive ranges are not industry standards or investment guidance. Holdings overlap does not measure correlation, volatility, geographic or factor exposure, fees, or suitability.
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.
This comparison covers normalized equity positions represented in the dataset. Cash, derivatives, options, structured notes, and other non-equity assets are not included, so the result is not a complete comparison of every asset or risk in either fund.
Top shared holdings
| Company | Ticker | in CSPX | in VUG |
|---|---|---|---|
| Nvidia | NVDA | 7.80% | 13.31% |
| Apple | AAPL | 6.88% | 12.32% |
| Microsoft | MSFT | 5.52% | 9.09% |
| Amazon.Com Inc | AMZN | 3.86% | 4.59% |
| Alphabet Class A | GOOGL | 3.07% | 5.54% |
| Broadcom Inc | AVGO | 2.55% | 4.40% |
| Alphabet Class C | GOOG | 2.45% | 4.39% |
| Meta Platforms Class A | META | 1.89% | 4.15% |
| Tesla Inc | TSLA | 1.49% | 3.47% |
| Eli Lilly | LLY | 1.48% | 2.60% |
Holdings only in CSPX or VUG
CSPX has 375 fund-only positions representing approximately 42.9 percentage points of reported exposure; VUG has 24 fund-only positions representing approximately 1.9 percentage points of reported exposure. These are positions whose normalized security identifiers appear in one issuer file but not the other.
Largest positions only in CSPX
| Company | Ticker | Weight |
|---|---|---|
| Micron Technology | MU | 1.59% |
| Jpmorgan Chase & Co | JPM | 1.44% |
| Berkshire Hathaway Inc Class B | BRKB | 1.40% |
| Exxonmobil Holdings Corp | XOM | 1.01% |
| Johnson & Johnson | JNJ | 0.99% |
| Abbvie | ABBV | 0.71% |
| Walmart Inc | WMT | 0.70% |
| Cisco Systems Inc | CSCO | 0.66% |
| Intel Corporation | INTC | 0.65% |
| Bank Of America | BAC | 0.62% |
Largest positions only in VUG
| Company | Ticker | Weight |
|---|---|---|
| Cloudflare Inc | NET | 0.22% |
| Snowflake Inc | SNOW | 0.18% |
| Alnylam Pharmaceuticals Inc | ALNY | 0.16% |
| Waste Connections Inc | WCN | 0.15% |
| ROBLOX Corp | RBLX | 0.13% |
| LPL Financial Holdings Inc | LPLA | 0.10% |
| Coreweave Inc | CRWV | 0.09% |
| Insmed Inc | INSM | 0.08% |
| MongoDB Inc | MDB | 0.08% |
| Bloom Energy Corp | BE | 0.08% |
FAQ
How much do CSPX and VUG overlap?
CSPX and VUG have 56.5% overlap by weight, sharing 128 equity positions (out of 503 in CSPX and 152 in VUG). The official holdings files used are dated 2026-08-25 for CSPX and 2026-03-31 for VUG.
What does 56.5% overlap mean?
CSPX and VUG share a material portion of their portfolio weight in the same underlying stocks. OverlapCheck labels this "moderate holdings overlap" using house ranges of 70% or more, 30% to under 70%, and under 30%. These descriptive ranges are not industry standards or investment guidance. Holdings overlap does not measure correlation, volatility, geographic or factor exposure, fees, or suitability.
Which stocks do CSPX and VUG both hold?
The largest shared positions are Nvidia, Apple, Microsoft, Amazon.Com Inc, Alphabet Class A. The top shared holdings with weights in each fund are shown on this page.
What holdings are different between CSPX and VUG?
CSPX has 375 positions not found in VUG, while VUG has 24 positions not found in CSPX. The largest fund-only positions and their weights are shown on this page.