The SPDR S&P 500 trust is an exchange-traded fund which trades on the NYSE Arca under the symbol. SPDR is an acronym for the Standard & Poor's Depositary Receipts, the former name of the ETF. It is designed to track the S&P 500 stock market index. This fund is the largest and oldest ETF in the world.
SPDR S&P 500 ETF (SPY) Trend Analysis

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