When it comes to trading, making profits is only one part of the story. What truly separates a disciplined trader from a lucky one is consistency. At Top One Trader, we introduced the Equity Stability Score (ESS) to measure not just how much you earn, but how steadily you earn it while maintaining your risk and profits at the same time.
Prime payout requirement: your ESS must be 20% or lower when you request a payout from a Prime account.
What Is the Equity Stability Score (ESS)?
The ESS is a percentage that reflects how balanced and consistent your trading has been. It considers both your largest winning day and your largest losing day, then compares those to your overall profit.
A lower ESS means your trading results are more stable and sustainable, while a higher ESS suggests that your performance may rely too heavily on just one or two outsized trades.
ESS Formula
ESS = [ Largest Winning Day + |Largest Losing Day| ] ÷ Total Profit × 100
Term | Meaning |
Largest Winning Day | Your single biggest profitable day |
Largest Losing Day | Your single biggest losing day (counted as a positive number) |
Total Profit | Your overall net profit |
ESS Requirement for Prime Accounts
When you request a payout from a Prime account, your ESS must be 20% or lower.
If your ESS is ≤ 20%, you are qualified for a payout (as long as other rules are also met).
If your ESS is > 20%, you need to continue trading until your score improves.
Examples of ESS in Action
Example | Largest Win | Largest Loss | Total Profit | Calculation | ESS | Result |
1. ESS meets requirement | $400 | -$350 | $3,750 | ($400 + $350) ÷ $3,750 × 100 | 20% | Qualifies for payout |
2. ESS too high | $1,200 | -$800 | $3,000 | ($1,200 + $800) ÷ $3,000 × 100 | 67% | Does not qualify |
3. Small profit, large day impact | $500 | -$400 | $1,200 | ($500 + $400) ÷ $1,200 × 100 | 75% | Does not qualify |
4. Break-even situation | $600 | -$550 | $1,000 | ($600 + $550) ÷ $1,000 × 100 | 115% | Does not qualify |
Example 1: since the ESS is 20%, this trader qualifies for payout.
Example 2: this trader does not qualify because the ESS is too high. They need to keep trading and increase total profit steadily (without setting new largest days) until the percentage falls to 20% or lower.
Example 3: although the trader is profitable overall, the ESS is very high because a few big days dominate their account. They need to build more steady profits until the ratio drops.
Example 4: the ESS is way above 20% because the total profit is still too small compared to the largest win/loss days. The trader needs to grow their profit base significantly before requesting a payout.
How to Maintain a Healthy ESS
Tip | Details |
Balance wins and losses | Do not let one day dominate your performance |
Avoid oversized trades | A single big win or loss can distort your ESS |
Grow total profit | If your ESS is too high, building up more steady profits will naturally bring it down |
Stay consistent | Trade steadily, avoid chasing "make-or-break" setups, and let time improve your score |
Why Do We Use ESS?
At Top One Trader, we do not just look for big profits, we look for smart and sustainable trading. Traders who grow their accounts steadily, with solid risk management, are more likely to succeed in the long run. ESS helps us reward consistency, not chaos.
For any questions or assistance, feel free to contact our support team at [email protected].