# Long Call Calculator: Options Profit & Loss Chart

> Long call calculator: chart the profit and loss of buying a call option, today and at expiration, with end-of-day prices, implied volatility and Greeks.

Data as of Oct 20, 2026 (end of day). **Data is delayed**: the latest session is Nov 10, 2026. [Subscribe](https://www.optionistics.com/subscribe) to get the latest end-of-day data.

Stock at **524.36**. Build a position of up to 8 option legs plus stock; the chart shows P/L today and at expiration.

## Settings

| Field | Value |
|---|---|
| Stock price | 524.36 |
| Solve For | Price Change |
| Valuation date | Oct 20, 2026 |
| Model | European |
| Rate % | 3.88 |
| Volatility | Leg IV (each leg's implied volatility) |
| Hist Vol | 0.1235 |
| Indexed IV | 0.1513 |
| Div Amt | - |
| Ex-Date | - |
| Frequency | Quarterly |

## Position

| Expiry | Strike | P/C | Quan | Side | Cost | TPrice | Vol | Delta | Gamma | Theta | Vega | Rho |
|---|---:|---|---:|---|---:|---:|---:|---:|---:|---:|---:|---:|
| 2026-10-23 | 524.00 | Call | 1 | Long | 3.3000 | 3.3861 | 0.1644 | 0.5299 | 0.0509 | -0.5472 | 0.1891 | 0.0226 |

**Cost** is the entry price per share, **TPrice** the theoretical value on the valuation date, **Vol** the volatility it is priced with; Greeks are per share (short legs negative). Quantities are contracts of 100 shares, or shares for the stock leg.

### Position totals ($)

| Cost | Value | P/L | Delta | Gamma | Theta | Vega | Rho |
|---:|---:|---:|---:|---:|---:|---:|---:|
| 330.00 | 338.61 | 8.61 | 52.99 | 5.09 | -54.72 | 18.91 | 2.26 |

Cost is the net debit paid (negative: a net credit), Value the position's theoretical value on the valuation date, P/L the difference; Greeks are position totals in shares.

## Profit and loss

Breakevens (where the P/L line crosses zero): **523.85**.

P/L by stock price from 262.18 to 781.13 (the chart spans 50% either side of the stock price; narrow it with `factor`, e.g. `factor=0.1` for 10%), every 4th of its 97 points.

At expiration, over the charted range, P/L runs from **-330.00** (at 262.18) to **25,383.42** (at 781.13).

| Stock price | P/L on Oct 20, 2026 | P/L at expiration |
|---:|---:|---:|
| 262.18 | -330.00 | -330.00 |
| 283.80 | -330.00 | -330.00 |
| 305.43 | -330.00 | -330.00 |
| 327.05 | -330.00 | -330.00 |
| 348.67 | -330.00 | -330.00 |
| 370.30 | -330.00 | -330.00 |
| 391.92 | -330.00 | -330.00 |
| 413.54 | -330.00 | -330.00 |
| 435.16 | -330.00 | -330.00 |
| 456.79 | -330.00 | -330.00 |
| 478.41 | -330.00 | -330.00 |
| 500.03 | -329.81 | -330.00 |
| 521.66 | -115.93 | -330.00 |
| 543.28 | 1,616.61 | 1,598.02 |
| 564.90 | 3,777.04 | 3,760.33 |
| 586.53 | 5,939.35 | 5,922.64 |
| 608.15 | 8,101.66 | 8,084.95 |
| 629.77 | 10,263.97 | 10,247.26 |
| 651.40 | 12,426.27 | 12,409.57 |
| 673.02 | 14,588.58 | 14,571.88 |
| 694.64 | 16,750.89 | 16,734.19 |
| 716.26 | 18,913.20 | 18,896.49 |
| 737.89 | 21,075.51 | 21,058.80 |
| 759.51 | 23,237.82 | 23,221.11 |
| 781.13 | 25,400.13 | 25,383.42 |

## About the Long Call

The calculator opens with one at-the-money call in the nearest expiration.

A long call is a net debit position: you pay the premium when you enter the trade. It profits when the stock rises; at expiration the breakeven is the strike plus the premium paid. The loss is limited to the premium, and the gain is unlimited.

To find candidates, use the [Cheap Calls Screener](https://www.optionistics.com/screener/cheap-calls.md).

### Other strategy calculators

- [Long Put Calculator](https://www.optionistics.com/calculators/long-put-calculator.md)
- [Bull Call Spread Calculator](https://www.optionistics.com/calculators/bull-call-spread-calculator.md)
- [Bear Call Spread Calculator](https://www.optionistics.com/calculators/bear-call-spread-calculator.md)
- [Bull Put Spread Calculator](https://www.optionistics.com/calculators/bull-put-spread-calculator.md)
- [Bear Put Spread Calculator](https://www.optionistics.com/calculators/bear-put-spread-calculator.md)
- [Straddle Calculator](https://www.optionistics.com/calculators/straddle-calculator.md)
- [Strangle Calculator](https://www.optionistics.com/calculators/strangle-calculator.md)
- [Covered Call Calculator](https://www.optionistics.com/calculators/covered-call-calculator.md)
- [Covered Put Calculator](https://www.optionistics.com/calculators/covered-put-calculator.md)
- [Calendar Call Spread Calculator](https://www.optionistics.com/calculators/calendar-call-spread-calculator.md)
- [Calendar Put Spread Calculator](https://www.optionistics.com/calculators/calendar-put-spread-calculator.md)
- [Diagonal Call Spread Calculator](https://www.optionistics.com/calculators/diagonal-call-spread-calculator.md)
- [Diagonal Put Spread Calculator](https://www.optionistics.com/calculators/diagonal-put-spread-calculator.md)

## How to use

Enter the position with query parameters. Option legs are `legs[N][field]`, N counting from 0, up to 4 legs ([subscribe](https://www.optionistics.com/subscribe) for 8): `expiry` (YYYY-MM-DD, required), `strike` (required), `putcall` (C or P), `side` (long or short), `quantity` (contracts, 1-1000), `cost` (entry price per share; default the contract's theoretical price), `ivol` (volatility override, decimal), `hidden` (1 leaves the leg out of the totals and chart). A stock leg: `stock[side]`, `stock[quantity]` (shares), `stock[cost]`. Or start from a `preset`: bull-call, bear-call, bull-put, bear-put, straddle, strangle, covered-call, covered-put, calendar-call, calendar-put, diagonal-call, diagonal-put, single-call, single-put. Pricing: `rate` (percent), `model` (a American, e European; default American when a dividend is set), `voltype` (0 slider, 1 indexed IV, 2 historical IV, 3 each leg's IV), `ivSlider` (1-400, with voltype 0), `dividend` (next dividend, dollars), `exDate` (YYYY-MM-DD), `frequency` (0 none, 12, 4, 2 or 1 a year). Chart: `solveFor` (p price change, dl days left), `factor` (price range either side of the stock price, 0.01-1, default 0.5), `dateOffset` (price change: value on the report date plus dateOffset + 1 days; default -1, the report date), `sliderPrice` (days left: the stock price to value at).

This position: `/calculators/stock-option-calculator/DIA.md?legs[0][expiry]=2026-10-23&legs[0][strike]=524&legs[0][putcall]=C&legs[0][side]=long&legs[0][quantity]=1&legs[0][cost]=3.3`. A preset: `/calculators/stock-option-calculator/DIA.md?preset=straddle`. With curl, pass `-g` (or encode the brackets as %5B and %5D).

## More for DIA

- [Quote](https://www.optionistics.com/quotes/stock-quotes/DIA.md)
- [Option chain](https://www.optionistics.com/quotes/stock-option-chains/DIA.md)
- [Price history](https://www.optionistics.com/quotes/stock-prices/DIA.md)
- [10 day snapshot](https://www.optionistics.com/snapshot.md?symbol=DIA)
- [Strike Pegger (max pain)](https://www.optionistics.com/quotes/strike-pegger/DIA.md)
- [Volatility skew](https://www.optionistics.com/screener/volatility-skew/DIA.md)
- [Put/call ratio](https://www.optionistics.com/screener/put-call-ratio/DIA.md)
- [Trade finder](https://www.optionistics.com/screener/stock-trade-finder/DIA.md)
- [Probability calculator](https://www.optionistics.com/calculators/probability-calculator.md?symbol=DIA)

---

From [Optionistics](https://www.optionistics.com), options analytics since 2005. Site map for AI agents: https://www.optionistics.com/llms.txt