State Street SPDR S&P 500 ETF Trust (SPY)
NYSE Arca · ETF
As of Jul 20, 2026
Price history
Key statistics
- Market cap
- —
- Volume
- 49,855,561
- 52-week high
- —
- 52-week low
- —
- Open
- $747.06
- Day high
- $748.73
- Day low
- $741.51
Top holdings
About State Street SPDR S&P 500 ETF Trust
SPY is the best-recognized and oldest US listed ETF and typically tops rankings for largest AUM and greatest trading volume. The fund tracks the massively popular US index, the S&P 500. Few realize that S&P's index committee chooses 500 securities to represent the US large-cap space - not necessarily the 500 largest by market cap, which can lead to some omissions of single names. Still, the index offers outstanding exposure to the US large-cap space. It's important to note, SPY is a unit investment trust, an older but entirely viable structure. As a UIT, SPY must fully replicate its index (it probably would anyway) and forgo the small risk and reward of securities lending. It also can`t reinvest portfolio dividends between distributions, the resulting cash drag will slightly hurt performance in up markets and help in downtrends. SPY is a favored vanilla trading vehicle.