Resources
Discipline
One Bad Day Calculator
Translate one damaging day into the number of average winning trades it erased.
Educational planning tool only. Results are simplified estimates and do not account for commissions, slippage, liquidity, margin, options Greeks, contract multipliers, tax treatment, or broker-specific requirements.
One Bad Day Calculator
Translate one damaging day into the number of average winning trades it erased.
Result
Winners erased
20.0
If capped
5.0 winners
Damage reduced
75%
More tools
Position Sizing
1R Position Size
Estimate shares or contracts from account risk, entry, stop, and planned dollar risk.
Open toolExpectancy
Expected Value
Estimate whether win probability, planned reward, and planned risk create positive expectancy.
Open toolTrade Planning
Risk / Reward
See planned dollar risk, planned dollar reward, and reward-to-risk before entry.
Open tool