# RKLB - ROCKET LAB USA INC. COMMON STO Options Profit Calculator, Price & Chart

> Graphical, multi-leg complex stock option profit and loss calculator for RKLB.

Data as of Oct 19, 2026 (end of day). **Data is delayed**: the latest session is Nov 9, 2026. [Subscribe](https://www.optionistics.com/subscribe) to get the latest end-of-day data.

Stock at **51.36**. 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 | 51.36 |
| Solve For | Price Change |
| Valuation date | Oct 19, 2026 |
| Model | European |
| Rate % | 3.88 |
| Volatility | Leg IV (each leg's implied volatility) |
| Hist Vol | 0.8958 |
| Indexed IV | 0.7635 |
| Div Amt | - |
| Ex-Date | - |
| Frequency | Quarterly |

## Position

| Expiry | Strike | P/C | Quan | Side | Cost | TPrice | Vol | Delta | Gamma | Theta | Vega | Rho |
|---|---:|---|---:|---|---:|---:|---:|---:|---:|---:|---:|---:|
| 2026-10-23 | 51.00 | Call | 1 | Long | 1.9000 | 1.9111 | 0.8021 | 0.5520 | 0.0917 | -0.2160 | 0.0213 | 0.0029 |

**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 |
|---:|---:|---:|---:|---:|---:|---:|---:|
| 190.00 | 191.11 | 1.11 | 55.20 | 9.17 | -21.60 | 2.13 | 0.29 |

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): **51.33**.

P/L by stock price from 25.68 to 76.51 (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 **-190.00** (at 25.68) to **2,361.05** (at 76.51).

| Stock price | P/L on Oct 19, 2026 | P/L at expiration |
|---:|---:|---:|
| 25.68 | -190.00 | -190.00 |
| 27.80 | -190.00 | -190.00 |
| 29.92 | -190.00 | -190.00 |
| 32.03 | -190.00 | -190.00 |
| 34.15 | -190.00 | -190.00 |
| 36.27 | -190.00 | -190.00 |
| 38.39 | -189.97 | -190.00 |
| 40.51 | -189.64 | -190.00 |
| 42.62 | -187.68 | -190.00 |
| 44.74 | -179.63 | -190.00 |
| 46.86 | -156.04 | -190.00 |
| 48.98 | -104.02 | -190.00 |
| 51.10 | -13.18 | -180.47 |
| 53.21 | 118.48 | 31.32 |
| 55.33 | 284.16 | 243.11 |
| 57.45 | 472.90 | 454.91 |
| 59.57 | 674.62 | 666.70 |
| 61.68 | 882.54 | 878.49 |
| 63.80 | 1,093.01 | 1,090.29 |
| 65.92 | 1,304.40 | 1,302.08 |
| 68.04 | 1,516.08 | 1,513.88 |
| 70.16 | 1,727.85 | 1,725.67 |
| 72.27 | 1,939.63 | 1,937.46 |
| 74.39 | 2,151.43 | 2,149.26 |
| 76.51 | 2,363.22 | 2,361.05 |

## 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/RKLB.md?legs[0][expiry]=2026-10-23&legs[0][strike]=51&legs[0][putcall]=C&legs[0][side]=long&legs[0][quantity]=1&legs[0][cost]=1.9`. A preset: `/calculators/stock-option-calculator/RKLB.md?preset=straddle`. With curl, pass `-g` (or encode the brackets as %5B and %5D).

## More for RKLB

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

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