Trading & Investing Tools
Practical calculators for sizing trades, stress-testing strategy costs, planning hedges, and modeling long-term investment growth.
These tools turn common investing and trading questions into explicit calculations. Each one shows the assumptions that drive the result so you can change the inputs instead of relying on a rule of thumb.
Trading & Backtesting
Futures Position Sizing
Size ES, MES, NQ, and MNQ positions from account equity, risk limit, and stop distance.
Open tool →Backtest Transaction Costs
Stress-test how annual turnover and per-dollar trading friction reduce gross backtest alpha.
Open tool →Trading Losing Streak Calculator
Calculate the exact chance of a losing streak across a finite trade sample and the fixed-fraction drawdown it would create.
Open tool →