longbridge option

Look up real-time quotes for US option contracts and browse the full option chain for any underlying symbol.

Basic Usage

longbridge option chain AAPL.US

| Strike | Call Symbol          | Put Symbol           | Standard |
|--------|----------------------|----------------------|----------|
| 180    | AAPL260406C180000.US | AAPL260406P180000.US | true     |
| 185    | AAPL260406C185000.US | AAPL260406P185000.US | true     |
| 190    | AAPL260406C190000.US | AAPL260406P190000.US | true     |
| 195    | AAPL260406C195000.US | AAPL260406P195000.US | true     |
| 200    | AAPL260406C200000.US | AAPL260406P200000.US | true     |
...

Examples

Browse the option chain for a stock

Without --date, this returns all available expiry dates for AAPL options. Pick an expiry date, then pass it with --date to see the strikes.

View strikes for a specific expiry

longbridge option chain AAPL.US --date 2026-04-17 --format json

[
  { "call_symbol": "AAPL260417C110000.US", "put_symbol": "AAPL260417P110000.US", "standard": "true", "strike": "110" },
  { "call_symbol": "AAPL260417C115000.US", "put_symbol": "AAPL260417P115000.US", "standard": "true", "strike": "115" },
  { "call_symbol": "AAPL260417C120000.US", "put_symbol": "AAPL260417P120000.US", "standard": "true", "strike": "120" }
]

Each row shows the call and put symbols for that strike. Copy a symbol from call_symbol or put_symbol to get a live quote.

Get a real-time quote for an option contract

longbridge option quote AAPL260417C190000.US --format json

[
  {
    "symbol": "AAPL260417C190000.US",
    "last": "12.35",
    "bid": "12.30",
    "ask": "12.40",
    "open_interest": "4821",
    "implied_volatility": "0.2341",
    "delta": "0.4812",
    "gamma": "0.0231",
    "theta": "-0.0512",
    "vega": "0.1843"
  }
]

Returns the latest bid, ask, last price, implied volatility, and greeks (delta, gamma, theta, vega) for the given contract.

Requirements

option quote requires an options account and options market data permission. option chain works with Level 1 quote access. See Quote Permissions for subscription details.

Notes

Option symbol format: AAPL260417C190000.US — underlying AAPL, expiry 2026-04-17, Call, $190.00 strike. The numeric price component is in units of $0.001, so 190000 = $190.00.