Does the January Barometer Work? 97 Years of S&P 500 Data, and How My 2017 Call Turned Out
By Spencer Li, CFTe · Last updated: 26 October 2026 The January Barometer is the Wall Street saying “as January goes, so goes the year”. If the stock market rises in January, the full year should rise too. I recounted it on S&P 500 month-end closes from 1929 to 2025, and January’s direction matched the […]
