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Quantitative tools · Free forever

Analyze. Compare.Decide.

Free quantitative tools, for investors who think in numbers.

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AAPL
NVDA
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Apple (AAPL) vs. NVIDIA (NVDA): Growth of a $10,000 investment over the past three years. Adjusted for dividends and splits.
Industry benchmark

See where a stock stands in its industry.

Box plots show how a stock’s key metric distributes against its industry peers. The box captures the middle 50% of companies—instantly answering whether the number is healthy, ordinary, or an outlier.

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Apple (AAPL) vs. NVIDIA (NVDA): A comparison of their P/E ratio against their respective Technology Hardware & Equipment and Semiconductors & Semiconductor Equipment industry group benchmarks.
Options · Payoff diagrams

See where the strategy breaks even.

Adjust strike, premium, and implied volatility to see breakevens, max loss, and payoff shape update in real time. Start with a few core strategies here, then explore the full options concepts library.

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Covered Call Calculator
Trade Inputs
$
$
$
d
×100 shares

Expiration Results

Exact trade-level results at expiration, before commissions, taxes, dividends, and financing costs.

Premium Income
$300.00
Max Profit
$1,300.00
Breakeven
$97.00
Max Loss
-$9,700.00
Stock Cost
$10,000.00
Downside Protection
3.00%
Return If Called
13.00%
Annualized If Called
158.17%

1 standard contract represents 100 shares. Annualized return uses simple annualization and does not imply the trade can be repeated at the same return.

Advanced Pre-Expiration Scenario

These assumptions change the payoff chart, not the expiration results above. Day 0 is the entry date; the expiration day shows the terminal payoff.

%

IV does not affect the payoff at expiration

%
d

Total Profit/Loss at Expiration

The chart shows total position profit and loss across possible stock prices, with the stock-only position as a reference.

Free calculators

Crunch the numbers without a spreadsheet.

From ROI to annuity factors, our calculators turn repeat formulas into quick answers, so you can compare scenarios without rebuilding a spreadsheet.

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$
$
Return on Investment (ROI)+50.00%

With an initial investment of $1,000.00 and a final value of $1,500.00, the ROI is +50.00%.