Does dollar cost averaging really work?
If you define dollar cost cost averaging as investing a specific dollar amount over a certain fixed time frame then it does not work statistically better than any other strategy for getting that money in the market.  (IE Aunt Ruth wants to invest $60,000 in the stock market and does it $5000 a month for a year.) It will work better on some markets and worse on others, but on average it won't be any better. Dollar cost averaging of this form is effectively a bet that gains will occur at the end of the time period rather than the beginning, sometimes this bet will pay off, other times it won't. A regular investment contribution of what you can afford over an indefinite time period (IE 401k contribution) is NOT Dollar Cost Averaging but it is an effective investment strategy.