DCA vs lump sum · real data

DCA vs lump sum

Same money, two timings. See which one actually won — on real history, no cherry-picking.

The eternal question

Lump sum means investing the whole amount on day one. DCA drip-feeds the same total in, a little each month. Studies say lump sum wins about two-thirds of the time — markets rise more often than they fall, so money invested sooner compounds longer.

But "two-thirds of the time" isn't "always," and averages hide the path. Pick an asset and a window above and watch the two lines settle it on real prices — including the brutal stretches where DCA's smoother ride mattered.

Try it on any asset

Questions

Is DCA or lump sum better?

On average, lump sum wins roughly two-thirds of the time for diversified assets, because markets trend up and money invested earlier compounds longer. DCA wins in volatile or falling markets and removes timing risk — the chance of investing everything right before a drop.

Why would anyone choose DCA then?

Two reasons. Most people don't have a lump sum — they invest from each paycheck, which is DCA by definition. And DCA is psychologically easier: it removes regret and the 'is now a good time?' paralysis. A smoother ride you actually stick with beats an optimal one you abandon.

Does lump sum beat DCA for Bitcoin too?

Often yes — in Bitcoin's big bull runs lump sum crushed DCA. But Bitcoin's drawdowns are brutal and DCA softened the worst stretches a lot. Switch the asset to BTC above and compare.

How is this calculated?

Real monthly historical prices, price-return only (dividends and yield excluded for fairness). Lump sum invests the full amount at the start; DCA invests an equal slice each month. The inflation-adjusted view uses US CPI.