Compounding

Earning returns on past returns. Slow, then sudden: 7% a year doubles money in a decade and quadruples it in two. The most consequential arithmetic in finance — try the calculator on the equities page.

Where Compounding is explained in depth

The definition above is the short version. These pages put it to work, in the order they use it most:

Calculators that compute it

The whole glossary

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