SPY - My Current View Of The S&P 500 Index: September 2021 Edition September, 01 2021 01:05 PM SPDR S&P 500 SPY continues to be the dominant ETF that I follow. All ETFs are within striking distance of new highs. AGG was the only ETF that declined in August. For further details see: My Current View Of The S&P 500 Index: September 2021 Edition