Trading Risk Pack
Risk management first: size positions, estimate edge, and understand ruin probability before you place the next trade.
Position Size Calculator
Calculate trade size based on risk and stop-loss
OpenKelly Criterion
Optimal fraction of capital per trade
OpenTrade Expectancy
E = WR×AvgWin − LR×AvgLoss
OpenRisk of Ruin
Approximation for fixed risk fraction
OpenPip Value
Forex pip value per lot
OpenFutures Position Size
Contracts by risk and stop in ticks
Open