Position sizing, drawdowns, Sharpe, DCA, dividends, FIRE and option payoffs for trading bots and planners.
payments ON MAINNET (real money) · 12 live endpoints
| Endpoint | Price | What it answers |
|---|---|---|
GET /dca-vs-lump | $0.02 | Compare equal periodic buys (dollar-cost averaging) with one lump sum on the first date, over a list of prices. |
GET /dividend-math | $0.02 | Dividend yield, yearly income, and yield on cost and total dividends after years of dividend growth. |
GET /drawdown-recovery | $0.02 | Gain needed to recover a percentage loss, or the maximum drawdown and recovery gain from a list of period returns. |
GET /expected-move | $0.02 | The price range implied by volatility over a number of days: one and two standard deviations, from implied or historical vol. |
GET /fire-number | $0.02 | Financial-independence number from yearly spending and a withdrawal rate, and years to reach it from savings and contributions. |
GET /inflation-adjust | $0.02 | What an amount costs or is worth after years of steady inflation, plus the real return after inflation for a nominal return. |
GET /margin-call | $0.02 | Margin call price for shares bought on margin: your cash, the loan, the maintenance requirement and the trigger price. |
GET /option-payoff | $0.02 | Expiry profit and loss for a long or short call or put: break-even, maximum gain and loss, and a payoff table. |
GET /portfolio-risk | $0.02 | Return and volatility of a two-asset mix from each asset's return, volatility and correlation, plus the lowest-risk weight. |
GET /position-size | $0.02 | Position size from account size, risk percent, entry and stop: units to buy, dollars at risk, cost and R-multiple targets. |
GET /return-stats | $0.02 | Performance stats from period returns: average, volatility, Sharpe, Sortino, compound growth and max drawdown. |
GET /risk-reward | $0.02 | Reward-to-risk ratio from entry, stop and target, the win rate needed to break even, and expectancy at your win rate. |
GET /catalog returns this list as JSON. Activity hub · uptime.
Educational arithmetic from standard formulas. It is not investment, tax or legal advice, a recommendation to buy or sell anything, or a prediction. Results depend entirely on the numbers you supply; past returns do not guarantee future results. Every paid response carries a disclaimer field.