What is the put/call ratio?

The put/call ratio (PCR) is the number of puts per call: how many downside-protection contracts the market holds for every upside bet. A PCR of 1.0 means parity; 0.6 means calls clearly dominate; 1.4 means puts dominate. It is a positioning gauge: it shows what the market is loaded with, not where price will go.

PCR by open interest vs by volume — what is the difference?

PCR by open interest is computed from all currently open positions — the market's structure, a slow reading that shifts over days and weeks. PCR by volume is computed only from today's trades — the day's flow, fast and noisy. The OI version tells you how the market is already positioned; the volume version tells you what it is doing right now.

Does a high put/call ratio mean the market will fall?

No, not automatically. A large player often buys puts as insurance on a spot position he keeps holding — that is a hedge, not a bet on a crash. Positioning is not a forecast. Moreover, an extremely high PCR has historically resolved contrarian more often than not: once everyone who was scared has bought protection, there is nobody left to sell.

Where can you track the Bitcoin put/call ratio?

The largest bitcoin options market is Deribit, so the PCR is computed from its data. We publish an open-interest PCR chart on our /en/levels board in the interest-flow section, and we interpret the flow — what was bought and why — every morning in the daily radar.

What is a good put/call ratio?

There is no single «good» number — each asset has its own baseline. Bitcoin usually trades more calls than puts, so its PCR often sits below 1.0; a reading near 0.6 is business as usual, not a crash warning. What matters is the deviation from the asset's own typical range: a PCR far above its normal band means demand for protection is unusually high, far below it — unusual complacency.

Is the put/call ratio a reliable indicator?

On its own — no indicator is. The P/C ratio reliably reports positioning (what the market holds), but it does not predict direction: many puts are hedges, not bets. It becomes useful in combination — with strikes, open-interest walls and the fear gauge — and at extremes, where crowded readings have historically resolved contrarian more often than not.

Is the P/C ratio in stocks the same as in crypto?

The formula is identical — puts divided by calls — and the reading logic is the same. The differences are the venue and the baseline: equity P/C ratio is usually computed from CBOE data, while for bitcoin and ether it is computed from crypto options exchanges (mostly Deribit), and each market has its own «normal» level, so the numbers are not directly comparable across markets.

Home / Glossary / Put/Call Ratio

Glossary · crypto options in plain English

What Does the Put/Call Ratio Mean?

The put/call ratio (PCR, also written P/C ratio) is the simplest positioning indicator in the options market. The definition fits in one line: how many puts there are for every call. A put is the contract that profits from a drop (or insures against one); a call is the contract that bets on upside. Divide one by the other — and you see what the market is loaded with.

PCR 1.0 is parity: exactly as many puts as calls. PCR 0.6 — calls clearly dominate, the market is leaning long. PCR 1.4 — puts dominate, the market is wrapped in protection. One number, but the whole balance of forces sits behind it.

See today's Bitcoin P/C ratio — live →

Two versions: by OI and by volume

Two different instruments live under one name, and mixing them up is a mistake:

PCR by open interest (OI). Computed from every position that is currently open in the market. This is structure: how the market is already positioned, how much protection has been accumulated, how many upside bets are on. It is a slow reading — it shifts over days and weeks, because large positions do not appear or vanish within an hour.
PCR by volume. Computed only from trades done today. This is flow: what the market is doing right now, where fresh attention is going. It is a fast reading — and a noisy one: a single large block trade can skew it for half a day.

A simple analogy: PCR by OI is the warehouse (what has already been stockpiled); PCR by volume is the conveyor belt (what is being delivered today). The warehouse changes slowly, the conveyor jerks around every hour. When the conveyor delivers the same thing day after day — the warehouse eventually shifts, and that shift is the interesting part.

Read the move, not the level

The level of this indicator by itself means less than its move — the meaning of a high or low reading depends on the asset. Every asset has its own «normal» baseline: bitcoin has historically traded more calls than puts, so a PCR below one is the usual state, not a signal. What matters is the change against the asset's own history:

PCR rising — the market is accumulating puts: someone is bidding for protection or betting on downside. The demand for insurance is growing.
PCR falling — calls dominate: the market is stacking upside bets, risk appetite is up, nobody wants to pay for protection.

Put/Call ratio at a glance

PCR ↑puts being accumulated — protection and downside bets

PCR ↓calls dominate — upside bets

PCR shows what the market is loaded with, not where it will go. The OI version is the slow structure of positions; the volume version is today's fast flow. Read the move against the asset's own history, not the raw number.

Is a high put/call ratio bullish or bearish?

This is where most glossaries stop, and they shouldn't — because this is exactly where beginners lose money. A high PCR is not automatically a bearish signal — and at extremes it has more often been a contrarian bullish one. Two reasons:

A put is often a hedge, not a bet. A large player holding bitcoin in spot buys puts as insurance on that position — the way a homeowner buys fire insurance without expecting a fire. In the PCR that trade looks «bearish», even though the player behind it is long and going nowhere. Positioning ≠ forecast.
Extremes tend to resolve the other way. When PCR hits records, it means everyone who was scared has already bought protection. Fear is maxed out, there is nobody left to sell — and it is precisely from such points that the market has historically turned up more often than it kept falling. That is why extreme PCR readings are read contrarian: a crowd that has unanimously wrapped itself in puts is rarely right. It is the same crowd logic our fear gauge tracks.

The right frame is this: PCR is a positioning thermometer. It honestly reports the temperature, but it does not make the diagnosis. The diagnosis appears when the PCR reading is combined with the rest of the instruments: who exactly is accumulating puts (a whale or retail), at which strikes, alongside what spot position.

P/C ratio in stocks vs crypto

The formula is the same everywhere: puts divided by calls. In equities the P/C ratio is usually computed from CBOE options data; in crypto it comes from crypto options exchanges — for bitcoin and ether that mostly means Deribit, where the bulk of BTC and ETH options trade. The reading logic carries over one-to-one, but every market has its own «normal» baseline, so a stock-market PCR and a bitcoin PCR are not directly comparable numbers — compare each against its own history instead.

How we use PCR at INDICIA

We run a chart of PCR by open interest on the levels board — in the «interest flow» section, next to the option walls and max pain: that way you see not just how many puts per call, but where exactly they sit.

And the interpretation of the flow — what was accumulated over the day, whether it looks like a hedge or a bet, whether we are sitting at an extreme — comes every morning in the daily radar. A raw number without context misleads; our job is to add the context.

📚 Options course — in the making

We are building a course that explains the market the way this glossary does: plain English, real BTC and ETH data, honest «doesn't work» verdicts. The first cohort will be limited.

Join the first-cohort waitlist →

Get the put and call flow read every morning →

INDICIA DESK · Crypto options market intelligence (BTC / ETH).
Educational content and a system decision journal. Not financial or investment advice.