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What is the Symbol Based selection type in the Option JSON Bridge?

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- Radhesh Joshi
  
  July 19, 2026 at 7:07 pm
  
  Hi everyone,
  
  While configuring the Options in JSON Bridge, I noticed that one of the Selection Type options is Symbol Based.
  
  Can someone explain what Symbol Based means, when it should be used, and how it affects the generated JSON? A simple example would be really helpful.
  
  Thanks!
- Algodelta Support
  Keymaster
  
  July 19, 2026 at 7:09 pm
  
  In the Symbol Based selection type, you manually choose the exact option contract that you want to trade. The platform does not search for another contract or make any automatic selection.
  
  For example, suppose the available option contracts are:
  
  -NIFTY21JUL2622500CE
  
  -NIFTY21JUL2622550CE
  
  -NIFTY21JUL2622600CE
  
  If you select NIFTY21JUL2622550CE, then the generated JSON will always contain that exact option contract.
  
  Even if the premium changes from ₹120 to ₹180 or drops to ₹90, the platform will still use NIFTY21JUL2622550CE because you selected the symbol manually.
  
  In simple words, Symbol Based is useful when you already know exactly which option contract you want to trade.
  
  (Refer to the image below for the Symbol Based configuration.)
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