How the d'Alembert Strategy Works on Deriv
d'Alembert is a gentler cousin of Martingale: it moves your stake up and down one unit at a time instead of multiplying it.
How d'Alembert works
After every loss, the next stake goes up by one unit. After every win, it goes down by one unit, but never below your starting stake.
Because the steps are small and additive, stakes grow far more slowly than with Martingale. The trade-off is that it takes longer to recover from a losing run.
The rules
- Start at one unit.
- Loss: add one unit to the next stake.
- Win: subtract one unit, to a minimum of one unit.
A worked example
| Trade | Result | Stake (USD) |
|---|---|---|
| Trade 1 | Loss | 10.00 |
| Trade 2 | Loss | 20.00 |
| Trade 3 | Loss | 30.00 |
| Trade 4 | Win | 40.00 |
| Trade 5 | Loss | 30.00 |
| Trade 6 | Win | 40.00 |
| Trade 7 | Win | 30.00 |
d'Alembert with a 10 USD unit.
Risks to understand
Still no edge
Adding and removing a unit does not change the odds of any trade. It only changes how much you have at stake.
Slow recovery
After a long losing run, one win only lowers the stake by one step, so you can stay at higher stakes for a while.
Use limits
Turn on risk management and set a stop loss before you run it.
Using d'Alembert in Tradely
Choose it from the Progression Strategies dropdown in the Trading Panel, then turn on risk management to add a stop loss and take profit. Practice on a Deriv demo account first and review drawdown and largest loss in Trade analytics. No staking plan creates an edge: progressions only reshape how much you stake, not whether a trade wins.
Test d'Alembert on a Deriv demo account before you risk real money.
Get StartedFrequently asked questions
- Is d'Alembert safer than Martingale?
- Stakes grow more slowly, so a losing run costs less than under Martingale. It is still a progression, and you can lose your entire stake.
- What does d'Alembert do after a win?
- It lowers the next stake by one unit, never going below the starting stake.
Keep reading
- FibonacciFibonacci stakes follow the sequence 1, 1, 2, 3, 5, 8 and so on, moving forward after a loss and back after a win.
- Grand MartingaleGrand Martingale is Martingale with an extra step: after a loss you double the stake and add one more unit.
- All strategy guidesCompare every staking strategy in one place.
Risk warning: Trading binary options involves a high level of risk and you could lose your entire stake. Only trade with money you can afford to lose. This page is educational and is not financial advice.