OI PCR versus volume PCR

ലളിതമായ അർത്ഥം

OI PCR versus volume PCR means examining option rights, obligations, chains, liquidity and the locally disclosed Black–Scholes sensitivities with the identity, period, unit, source and limitations kept visible. It is a disciplined way to describe evidence, not a shortcut to an investment conclusion.

Learning objectives #

After this chapter you should be able to define oi pcr versus volume pcr, identify the evidence needed to use it, distinguish a reported zero from unavailable evidence, and explain why unlike instruments or periods may not be comparable.

Prerequisites #

Read “Open interest, change in OI and four-way buildup” first. Be comfortable checking an exact listing or instrument, its source, observation date, native currency and unit. When any one of those is unknown, pause the comparison and record the gap.

Core concept #

OI PCR divides put OI by call OI; volume PCR uses period activity and answers a different question. Preserve raw facts separately from interpretation, and retain the denominator, time window, classification rule and provenance that make the evidence reproducible.

Method #

For oi pcr versus volume pcr, first identify the exact evidence named in this chapter: OI PCR divides put OI by call OI; volume PCR uses period activity and answers a different question. Then freeze identity and period, collect source-backed inputs with units, calculate or classify only compatible evidence, and record contrary facts and unavailable fields.

Where it appears in XMarketRadar #

Use Option Chain and Options Screener persisted views; always retain underlying, expiry, strike, type, multiplier, provider IV and source/as-of status. A displayed field is useful only with its source and as-of context. If XMarketRadar does not calculate this chapter’s concept directly, use the chapter as an educational checklist and retain the supporting primary document or screen URL in the research workspace.

Worked example #

Put OI 120k / call OI 100k = 1.2; put volume 30k / call volume 60k = 0.5. If either call denominator is zero, its PCR is —, never infinity or zero. Module context: Illustrative XYZ 28-Aug-2026 105 call uses spot 100, multiplier 50, premium 3.20 and provider IV 25%; local Greeks use the fixed 7% risk-free assumption. This is an illustrative audit trail, not live data, a target or an expected outcome.

Interpretation #

Interpret the result in the direction defined by the field, not by an assumed desirable outcome. Higher, lower, positive and negative can each have different meanings by context. Compare the observation with its own history or a compatible benchmark, and label conclusions as observations, interpretations or user decisions.

Limitations and common mistakes #

Substituting volume PCR for OI PCR, summing mismatched expiries, or forcing a zero call denominator into a numeric result. Discontinuous payoff, wide spreads, provider IV quality and local model assumptions make option metrics descriptive rather than predictive. A precise calculation can still mislead when the source is stale, the denominator changed, or a classification hides important detail.

Unavailable evidence #

If evidence needed for this chapter’s focus is missing—OI PCR divides put OI by call OI; volume PCR uses period activity and answers a different question.—the result is unavailable (—). Do not resolve the gap by substituting volume pcr for oi pcr, summing mismatched expiries, or forcing a zero call denominator into a numeric result. It is not zero, neutral, low risk, a failed condition or permission to substitute a different listing. Retain the last verified observation only with its original date and stale label.

Market and jurisdiction differences #

Multipliers, exercise style, expiries, settlement and position limits vary by exchange and jurisdiction. Exchange rules, accounting conventions, calendars, taxes, disclosure timing, quote scale and licensed coverage can differ. Verify the current primary source for the relevant venue; registry support alone does not prove that every field is available.

Key takeaways #

For oi pcr versus volume pcr, remember this boundary: Substituting volume PCR for OI PCR, summing mismatched expiries, or forcing a zero call denominator into a numeric result. Keep the evidence exact, dated and source-backed; publish missing information as unavailable rather than manufacturing a value.

Practice #

Reproduce this historical scenario from source-labelled inputs: Put OI 120k / call OI 100k = 1.2; put volume 30k / call volume 60k = 0.5. If either call denominator is zero, its PCR is —, never infinity or zero. Then change one input, preserve the original period and unit, and explain whether the result changes or becomes unavailable. Write the identity, source, date, unit and failure condition, then state exactly what would display as —.

Knowledge check #

Related next steps #

Continue with “Implied volatility and model inputs”. Follow the previous/next chapter links and related glossary terms for canonical definitions. Re-run the checklist whenever the source, period, instrument identity or methodology changes.

Educational use only #

This chapter is descriptive education, not investment advice, a forecast, a recommendation, a suitability assessment or an instruction to buy, sell, rebalance, trade or place an order. XMarketRadar’s broker connections remain read-only.