Are you ignoring dividend reinvestment creating compounding growth?
Even god couldn't beat dollar cost averaging, https://ofdollarsanddata.com/even-god-couldnt-beat-dollar-co...
Even god couldn't beat dollar cost averaging, https://ofdollarsanddata.com/even-god-couldnt-beat-dollar-co...
I have seen a similar analysis (but can’t find it right now). Even if you invest at the all time highs, so the market drops right after you buy, you still win with the all-at-once strategy.
The general lesson: Get your money into the market as soon as possible. Maybe more memorable: Time in the market beats timing the market.
Adjusted for dividends since 2012
VUKE - Vanguard UK 100 up 100% VUSA - Vanguard S&P500 up 350%
For a US centric view: https://www.investopedia.com/articles/investing/032615/how-t...