QuantStreet August 2026 Letter: Sector Rotation Continues

Published on August 5, 2026

July 2026 was a flattish month for markets. The S&P 500 index was down slightly. Value did well, while momentum did poorly. Smallcaps, midcaps, and emerging markets, all of which have been the year’s best performers, had a bad month. Commodities, driven largely by oil prices, led the pack, as the fragile ceasefire in Iran failed to hold.