I seem to be having trouble communicating here. Absolutely, dollar cost averaging is the way to go. The other stuff I'm suggesting, I'm suggesting because it's worse, and if you want to show how good dollar cost averaging is, you need to compare it to something that is worse, but that somebody naive might do. I'm suggesting these for your plot, not for your investing strategy. For investing strategy, dollar cost averaging is the way to go, unless you are a genius or you have a better understanding of the particular market and company, then is available to expert investors.