3 ms·

It is only over 10 years, but Vanguard has a short analysis of Dollar Cost Averaging at https://pressroom.vanguard.com/nonindexed/7.23.2012_Dollar-cost_Averagin

• pilom 10y ago
  The gist of their analysis was "since the market always goes up eventually, investing all up front will give you higher average returns but significantly higher variability"