• Negative or inverse correlation describes when two variables tend to move in the opposite direction and magnitude relative to each other, so that when one variable increases, the other variable decreases, and vice versa.

  • Negative correlation is used when building diversified portfolios so that investors can benefit from rising prices for some assets when others fall.
  • The correlation between two variables can vary greatly over time. Stocks and bonds typically have a negative correlation, but in the 10 years prior to 2018, their measured correlations ranged from -0.8 to +0.2.