CELESYS FIELD GUIDES
Understand before you act.
How to read an option chain
Understand strikes, expiry, bid/ask spreads, open interest and implied volatility before comparing India or US options.
Read guide →Open interest and PCR: context, not a prediction
Learn what open interest and the put-call ratio can tell you, what they cannot, and why expiry and missing data matter.
Read guide →A practical paper-trading checklist
Practice a repeatable research and risk-review process, and understand the limits of simulated fills.
Read guide →