According to The Kobeissi Letter, the number of unsold completed single-family homes in the US rose by 31,000 year-over-year in March 2025, reaching 119,000—the highest level since July 2009. Over the past three years, unsold inventory has tripled, and unsold homes now represent approximately 12% of housing starts. This surge in unsold inventory signals growing risks for real estate market liquidity and could trigger price corrections or increased selling pressure on homebuilders' stocks (source: The Kobeissi Letter, April 28, 2025). Traders should monitor housing sector ETFs and related equities for heightened volatility.