A statistic from The Stock Traders Alamanac reflecting, with 88% accuracy, that the overall stock market rises for the year when the S&P is up in the month of January and drops when the index for that month was down.
JANUARY BAROMETER
Meaning of JANUARY BAROMETER in English
Campbell R. Harvey. Hypertextual finance English glossary. Английский словарь гипертекстовых финансов. 2012