A profitable strategy can still blow up an account if the position sizing is wrong. This shows you how likely that is before it happens.
Position size decides survival
Two traders with the same edge can end the year at +40% and −80%. The difference is almost never the signals — it's how much of the account each trade puts at risk.
Win rate and average reward-to-risk from your journal or backtest.
The percentage of equity a full stop-out costs you.
The drawdown level at which you'd stop, or a prop account would fail you.
Halve the risk per trade and watch the probability collapse.
Estimate how likely a losing streak is to take your account down to a level you can't recover from, given your edge and your risk per trade.
SimpleAlgo V5 prints volatility-based stop and target levels directly on your TradingView chart, so every trade has a measurable R before you enter.
Guides, definitions and indicator pages on the same topic.