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SPY is the original and most recognizable US-listed ETF, designed to mirror the S&P 500 index through full replication of its 500 large-cap US equity constituents.
Structured as a Unit Investment Trust, it passively tracks a market cap-weighted index curated by S&P's index committee, not simply the 500 largest companies by market cap.
With $670B+ in AUM and razor-thin trading spreads, it remains the dominant benchmark instrument in the ETF universe.
You own a tiny slice of 500 of America's biggest companies — think Apple, Microsoft, Amazon — all in one trade. When the US stock market goes up, SPY goes up; when it drops, so does SPY.
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Showing the largest holdings by weight in SPY
| Logo | Ticker | ETF Weight | Market Value | |
|---|---|---|---|---|
NV | NVDA NVIDIA CORP | NVIDIA CORP | 7.63% | $51.8B |
AA | AAPL APPLE INC | APPLE INC | 6.53% | $44.4B |
MS | MSFT MICROSOFT CORP | MICROSOFT CORP | 4.73% | $32.1B |
AM | AMZN AMAZON.COM INC | AMAZON.COM INC | 3.89% | $26.5B |
GO | GOOGL ALPHABET INC CL A | ALPHABET INC CL A | 3.16% | $21.5B |
AV | AVGO BROADCOM INC | BROADCOM INC | 2.87% | $19.5B |
GO | GOOG ALPHABET INC CL C | ALPHABET INC CL C | 2.52% | $17.2B |
ME | META META PLATFORMS INC CLASS A | META PLATFORMS INC CLASS A | 2.35% | $15.9B |
TS | TSLA TESLA INC | TESLA INC | 1.66% | $11.3B |
BR | BRK-B BERKSHIRE HATHAWAY INC CL B | BERKSHIRE HATHAWAY INC CL B | 1.52% | $10.3B |
Breakdown of SPY by sector weightings (%)
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Top countries by weight (%)
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