XRT (SPDR S&P Retail ETF)

An exchange-traded fund that tracks the S&P Retail Select Industry Index, providing equal-weighted exposure to U.S. retail companies across all market capitalizations. XRT gained notoriety during the GameStop saga because its holdings included GME shares, and short sellers used it as a vehicle to maintain indirect short exposure to meme stocks. Traders monitor XRT as a barometer for U.S. consumer spending trends and retail sector health.