# SUTRO BIOPHARMA INC. COMMON ST (STRO) Option Chains

> STRO option chain: calls and puts by expiration with bid, ask, last and theoretical price, volume, open interest, implied volatility and Greeks.

Data as of Nov 10, 2026 (end of day).

## STRO quote

| Field | Value |
|---|---|
| Last | 10.17 |
| Change | -0.44 |
| Open | 10.40 |
| Previous | 10.61 |
| High | 10.77 |
| Low | 9.94 |
| Bid | - |
| Ask | - |
| Volume | 217,227 |
| Trades | - |
| Dividend | - |
| Yield | - |
| Ex-Div | - |
| Split Date | Dec 3, 2025 |
| Impl Vol | 0.0% |
| Hist Vol | 83.9% |
| Opt Volume | 0 |
| Open Int | 1,222 |

Calls and puts, near-the-money strikes, expirations through the end of the second month out. Stock price: 10.17.

All expirations: 2026-11-20, 2026-12-18, 2027-02-19, 2027-05-21.

**Price** is the last trade, **TPrice** the theoretical value (Black-Scholes on historical volatility), **IVol** the implied volatility. **NS** is the contract type: S standard, W weekly, Q quarterly, FR fixed return, NS non-standard (adjusted). A contract's daily price history: `/quotes/option-prices.md?optsym=<Symbol>`.

Change the view with query parameters: `expirations` (1, 2, 3, 6, 9 or -1 for all), `expiry` (YYYY-MM-DD, one expiration), `range` (ntm, otm, itm, all), `putcall` (C, P), `strike` (one strike across expirations), `date` (an earlier session, subscribers). Example: `/quotes/stock-option-chains/STRO.md?expirations=-1&range=all`.

## Expires Nov 20, 2026

### Calls

| Strike | Symbol | Bid | Ask | Price | TPrice | Vol | OI | IVol | Delta | Theta | Vega | Gamma | Rho | NS |
|---:|---|---:|---:|---:|---:|---:|---:|---:|---:|---:|---:|---:|---:|---|
| 10.00 | STRO 261120C00010000 | 0.00 | 4.20 | 0.65 | 1.76 | 0 | 40 | 84.28% | 0.5757 | -0.0278 | 0.0066 | 0.2761 | 0.0014 | S |
| 12.50 | STRO 261120C00012500 | 0.00 | 4.90 | 0.45 | 0.93 | 0 | 729 | 174.22% | 0.2840 | -0.0497 | 0.0057 | 0.1156 | 0.0007 | S |
| 15.00 | STRO 261120C00015000 | 0.00 | 5.00 | 0.30 | 0.48 | 0 | 3 | 214.25% | 0.1792 | -0.0472 | 0.0044 | 0.0726 | 0.0004 | S |

### Puts

| Strike | Symbol | Bid | Ask | Price | TPrice | Vol | OI | IVol | Delta | Theta | Vega | Gamma | Rho | NS |
|---:|---|---:|---:|---:|---:|---:|---:|---:|---:|---:|---:|---:|---:|---|
| 7.50 | STRO 261120P00007500 | 0.05 | 0.40 | 0.50 | 0.48 | 0 | 57 | 185.45% | -0.1260 | -0.0323 | 0.0035 | 0.0663 | -0.0004 | S |
| 12.50 | STRO 261120P00012500 | 0.50 | 4.90 | 4.00 | 3.23 | 0 | 2 | 364.14% | -0.5163 | -0.1222 | 0.0067 | 0.0650 | -0.0025 | S |
| 15.00 | STRO 261120P00015000 | 2.55 | 7.00 | 4.60 | 5.27 | 0 | 5 | 244.91% | -0.7752 | -0.0618 | 0.0050 | 0.0727 | -0.0036 | S |
| 17.50 | STRO 261120P00017500 | 5.00 | 9.50 | 2.75 | 7.54 | 0 | 0 | 240.12% | -0.8784 | -0.0408 | 0.0034 | 0.0500 | -0.0045 | S |

## Expires Dec 18, 2026

### Calls

| Strike | Symbol | Bid | Ask | Price | TPrice | Vol | OI | IVol | Delta | Theta | Vega | Gamma | Rho | NS |
|---:|---|---:|---:|---:|---:|---:|---:|---:|---:|---:|---:|---:|---:|---|
| 10.00 | STRO 261218C00010000 | 0.55 | 4.90 | 2.45 | 3.51 | 0 | 3 | 184.68% | 0.6284 | -0.0302 | 0.0124 | 0.0624 | 0.0041 | S |

### Puts

| Strike | Symbol | Bid | Ask | Price | TPrice | Vol | OI | IVol | Delta | Theta | Vega | Gamma | Rho | NS |
|---:|---|---:|---:|---:|---:|---:|---:|---:|---:|---:|---:|---:|---:|---|
| 10.00 | STRO 261218P00010000 | 0.70 | 4.90 | 2.05 | 2.95 | 0 | 1 | 166.56% | -0.3819 | -0.0274 | 0.0125 | 0.0698 | -0.0062 | S |

## More for STRO

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

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