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S&P 500 ETF (SPY): What Is It? Definition & Explanation
SPY is an exchange-traded fund that tracks the S&P 500 index, covering the 500 largest US companies. Follow SPY's price and technical analysis on COINOTAG.
By COINOTAG Research DeskLast updated Sources
SPY (SPDR S&P 500 ETF Trust) is the world's largest exchange-traded fund by assets under management, launched in 1993. SPY has become the primary reference point for investors seeking to follow the pulse of the US economy.
What Is It?
SPDR S&P 500 ETF Trust is an exchange-traded fund managed by State Street Global Advisors that tracks the S&P 500 index. Its annual expense ratio of 0.0945% makes it an extremely low-cost instrument. The index is market-cap weighted, with technology giants such as Apple, Microsoft, NVIDIA, Amazon, and Meta holding the largest shares.
What Does It Track?
SPY closely tracks the S&P 500 index, which includes the 500 largest US companies. The index covers 11 sectors including technology, healthcare, financials, energy, and consumer staples. This diversification transforms SPY into an investment vehicle targeting the entire US equity market rather than a single sector.
Why Does It Matter?
The S&P 500 is one of the most important barometers of global risk appetite. A rising SPY signals risk-on sentiment; a falling SPY signals demand for safe havens. The correlation between crypto markets and the S&P 500 becomes especially pronounced during periods of macroeconomic uncertainty — so SPY moves indirectly affect BTC and ETH prices too.
| Feature | Detail |
|---|---|
| Founded | 1993 |
| Manager | State Street Global Advisors |
| Expense Ratio | 0.0945% |
| Tracked Index | S&P 500 |
| Trading Hours | 09:30–16:00 ET |
S&P 500 ETF historical performance chart and sector allocation breakdown
How is SPY traded?
The underlying (SPY) trades on its own market during that market's session hours.
SPY price and technical analysis →
Risks
Because traditional exchanges are open from 09:30–16:00 ET, price gaps that form between closing and opening sessions can negatively affect positions. Leverage amplifies both gains and losses equally; always keep liquidation risk in mind.
COINOTAG Perspective
SPY is a critical reference instrument for investors tracking macroeconomic developments and balancing their portfolios between crypto and traditional assets.
Frequently Asked Questions
What is the SPY ETF?
SPY is the world's largest exchange-traded fund, managed by State Street Global Advisors, tracking the S&P 500 index. It was founded in 1993 and carries an annual expense ratio of 0.0945%.
Where can I follow SPY's price and technical analysis?
You can follow SPY's price, chart and technical analysis on COINOTAG.
What is the relationship between SPY and crypto?
The correlation between the S&P 500 and crypto markets strengthens particularly during periods of macroeconomic uncertainty. Sharp drops in SPY can negatively affect BTC and ETH prices as well.
What are the risks of using leverage on SPY?
Leverage amplifies both gains and losses equally. Additionally, since traditional exchanges close at fixed hours, gap risk between sessions must be taken into account.