Eight free investment and trading calculators with PNG charts and editable result links.
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First seen 16 Oct 2026. One server, whatever directories list it: each directory listing keeps its own page and history.
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8
Tools
From an anonymous probe
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Tools
| Tool | Description | Behaviour |
|---|---|---|
| compound_interest | Compound interest in USD: initial dollars, monthly dollars, annual return/fees/inflation in percent, and whole years. Creates a free calc-compound PNG. Returns results, conditions, assumptions, an editable link, share page and PNG. No account access or order execution. | Read-only |
| dca_backtest | Dollar-cost-averaging backtest using installed monthly closes, not live quotes. Asset ticker, start/end months YYYY-MM, initial deposit in USD, monthly in USD per purchase, frequency in months (1, 3 or 12), buying fee in percent, optional benchmark and total/price return basis. Initial deposit and first recurring purchase occur at the selected start month-end. Omitted dates use calculator defaults clamped to coverage. Returns data metadata and the free calc-dca PNG. Returns results, conditions, assumptions, an editable link, share page and PNG. No account access or order execution. | Read-only |
| drawdown_recovery | Drawdown recovery: balances/deposits in USD, drawdown and monthly return in percent, target horizon in whole months. Returns results, conditions, assumptions, an editable link, share page and PNG. No account access or order execution. | Read-only |
| historical_return | Historical investment return using installed monthly closes, not live quotes. Asset ticker, start/end months YYYY-MM, amount in USD (unit=cash) or historical shares/coins (unit=coins), buying fee in percent, optional benchmark and total/price return basis. Omitted dates use calculator defaults clamped to asset/benchmark coverage. Returns data coverage/source metadata and the free calc-return PNG. Returns results, conditions, assumptions, an editable link, share page and PNG. No account access or order execution. | Read-only |
| inventory_quotes | Inventory quotes: mid and tick in USD, inventory weights in percent, spread/skew/cap in basis points. Skew is bps per 10 percentage points of inventory deviation. Returns results, conditions, assumptions, an editable link, share page and PNG. No account access or order execution. | Read-only |
| position_size | Position sizing for linear USD shares/coins: prices in USD, account risk in percent, fees/slippage in basis points, quantity increment in units. Returns results, conditions, assumptions, an editable link, share page and PNG. No account access or order execution. | Read-only |
| spread_and_fees | Round-trip spread economics: one-side notional in USD; full spread, fee per fill and adverse cost in basis points (1 bp = 0.01%). Negative fees are rebates. Returns results, conditions, assumptions, an editable link, share page and PNG. No account access or order execution. | Read-only |
| trade_expectancy | Trade expectancy and fractional Kelly: balance in USD, win rate/buffer/cap in percent, wins/losses/cost in R, fraction 0–1. Returns results, conditions, assumptions, an editable link, share page and PNG. No account access or order execution. | Read-only |
| Directory | Listing | Tier | First seen |
|---|---|---|---|
| Official MCP Registry | PNL Toolkit | - | 16 Oct 2026 |