ArthaPilot Research

Interactive research for portfolio decisions

Read the conclusion, change the assumptions, and inspect the historical paths behind the result.

Published 2026-07-28

Lump Sum vs. Dollar-Cost Averaging

Across 1,081 rolling 10-year periods in extended U.S. large-cap history since 1926, investing immediately beat a 12-month DCA schedule 67.2% of the time, even while waiting cash earned Treasury-bill returns. DCA generally led when the market fell during deployment.

Read and explore