You have 10,000 Swiss Francs. You want to buy Bitcoin. And now you're facing THE question:
All in at once? Or a little bit every month?
Reddit says: "Time in the market beats timing the market. All in!"
YouTube says: "DCA is safer! 500 Francs every month!"
Both sound convincing. Both have arguments. And both are right. Sort of.
So I tested it. Not with opinions. Not with feelings. With 6 years of real Bitcoin data. And the result is more surprising than you think.
In this article you'll learn:
- What DCA and Lump Sum actually mean
- Who wins in the data (and why)
- When DCA is STILL the better choice
- And what our bot does with both
Let's go.
Quick Explainer: What Is What?
Lump Sum (All at once): You have 10,000 Francs. You buy Bitcoin TODAY. All of it. Immediately. Done.
DCA (Dollar Cost Averaging): You have 10,000 Francs. You buy 500 Francs worth of Bitcoin every month. For 20 months. Regardless of whether the price is high or low.
Sounds like a small difference. It's not.
The Test: 6 Years of Bitcoin Data
I compared both approaches over the period 2019 to 2025. Same starting capital. Same end date. Only the method is different.
Scenario: CHF 10,000, Start January 2020
| Method | Final Value (April 2026) | Return |
|---|---|---|
| Lump Sum (all on January 1, 2020) | ~CHF 50,700 | +407% |
| DCA (CHF 500/month over 20 months) | ~CHF 28,400 | +184% |
Lump Sum wins. By a lot. More than double the return. The interactive chart shows the performance over the entire period. Hover over the lines and you'll see the exact portfolio values at every point:
But wait. Before you throw everything in at once, keep reading.
Why Lump Sum USUALLY Wins
The math is simple: Bitcoin goes up long-term. If something goes up long-term, you want to be invested as EARLY as possible. Every day your money is NOT invested is a day it earns no return.
Studies on stocks (Vanguard, 2012) show the same picture: In roughly 68% of historical periods, Lump Sum beats DCA. Not just with Bitcoin. With almost all asset classes that rise long-term.
Remember: If you believe Bitcoin goes up long-term, the mathematically optimal time is ALWAYS "now." Not "next month." Not "when it dips again." Now.
Why DCA Can STILL Be Better
Now comes the part the Lump Sum fans ignore.
1. You don't always buy at the bottom
In the example above, Lump Sum starts in January 2020. Bitcoin was at $7,200. A good entry point.
But what if you had done Lump Sum in November 2021? At $69,000? Then your Lump Sum would STILL be in the red TODAY. DCA would have performed significantly better in the same period thanks to cheaper purchases during the 2022 bear market.
The problem: You don't know BEFOREHAND whether you're buying at the bottom or the top.
2. The psychological factor
Imagine this: You invest 10,000 Francs all at once. Next week Bitcoin drops 30%. Your portfolio shows CHF 7,000. You've "lost" 3,000 Francs.
How do you feel? Panicked? Angry? Sleepless?
With DCA you would have only invested 500 Francs. The rest sits safely in your account. The same 30% crash costs you 150 Francs instead of 3,000. You sleep better. You make better decisions. You don't panic sell.
Remember: The best strategy isn't the one with the highest return. It's the one you STICK WITH. And DCA is easier to stick with than Lump Sum after a crash.
3. DCA automatically buys cheaper on dips
When Bitcoin drops, DCA buys you MORE Bitcoin for the same amount. That automatically lowers your average price. Without you actively doing anything. No timing. No decisions.
With Lump Sum you buy once. At one price. Done. If the price drops afterwards, you sit it out. Or you manually buy the dip, which is emotionally extremely hard.
What the Studies Say
Vanguard (2012): Lump Sum beats DCA in 68% of historical 12-month periods for US stocks. But in 32% of cases DCA is better. And those 32% are often the most painful periods (crashes, bear markets).
My own data (Bitcoin, 2019-2025): Lump Sum wins when you hit a good entry point. DCA wins when you hit a bad one. Since you don't know beforehand which one you'll hit, DCA is the SAFER bet.
Psychology studies: Loss aversion (Kahneman) shows: A loss of CHF 3,000 hurts twice as much as a gain of CHF 3,000 feels good. DCA reduces the maximum losses and therefore the emotional pain.
My Personal Experience
I've done both. And I know what WORKED better.
XRP: DCA over 3 years. Bought at an average of $0.80. Sold half at $2.40. Clean profit. No stress. Slept well.
FARTBOY: Lump Sum. 2,500 Francs all at once. Went to 178,000. Didn't sell. Down to 40,000. Sleepless nights. FOMO. Panic.
Which trade was better for my LIFE? The boring DCA.
And What Does Our Bot Do?
Great question. Our bot is neither Lump Sum nor DCA. It's a third thing:
Signal-based investing.
It invests 100% when its 3 filters are green. And it goes to 0% when a filter turns red. It's like Lump Sum, but only at the RIGHT moments.
In our DCA calculator you can compare all three approaches. The orange line (bot) sits almost always above the purple (DCA) and the gray (invested).
The Summary
| Lump Sum | DCA | Bot | |
|---|---|---|---|
| Return (theoretical) | Higher (68% of cases) | Lower | Highest (backtest) |
| Risk | High (one entry point) | Low (spread out) | Medium (rule-based) |
| Emotional stress | High after crash | Low | Very low (automatic) |
| Discipline needed | A lot (don't panic sell) | Little (automatable) | None (bot decides) |
| For whom? | Experienced with strong nerves | Beginners and everyone with a life | Bot users |
My Advice
If you have 10,000 Francs and don't know what to do:
1. Start with DCA. 500 Francs per month. Automatic. Via standing order through Relai or another Swiss provider. No thinking. No timing.
2. When you feel more comfortable, increase. After 6 months of DCA you'll have a feel for the volatility. Then you can add the remaining amount as Lump Sum.
3. Or let the bot decide. Our traffic light shows you whether the timing is favorable. If all 3 filters are green: good time for Lump Sum. If one is red: wait. Or just keep doing DCA.
Remember: DCA is not the strategy with the highest return. But it's the strategy you can't screw up. And that's usually worth more.
-> DCA Savings Plan Calculator -- Calculate your own savings plan with bot comparison
-> HODL Beats 27 Out of 30 Strategies -- Why doing nothing beats almost everything
-> My Rule #1: Take Out Your Investment -- When you should lock in profits
-> What Does the Bot Say Right Now? -- Current signal
Your Dominic, the guy who tried both and knows: sleeping well is worth more than 2% extra return.
Sources
- Vanguard: "Dollar-cost averaging just means taking risk later" (2012)
- Kahneman & Tversky: Prospect Theory (1979)
Disclaimer: This is not investment advice. All calculations are based on historical data and do not guarantee future results. Only invest what you can afford to lose.
