Option Underlying symbol. Read-only value sent in responses. It is ignored in requests.
Option expiry. Format is 'May21'. Read-only value sent in responses. It is ignored in requests.
Option 'put' or 'call'. Read-only value sent in responses. It is ignored in requests.
Option strike price. Read-only value sent in responses. It is ignored in requests.
{ "fullSymbol": "string", "symbolType": "string", "underlying": "string", "expiry": "string", "putOrCall": "string", "strikePrice": 0.1, "description": "string" }