08 Put Call Ratio

Put/Call Ratio: Sentiment Extremes

📊 What Everyone Thinks

Market Internals — 8/5

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Market Internals — 8/5

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Everyone is buying puts. The ratio spikes to 1.5. The news is terrible. Economists predict doom. Your taxi driver is talking about market crashes. The put/call ratio screams extreme fear.

This might be the most bullish signal you’ll see.

Everyone is buying calls. The ratio drops to 0.4. The market can’t lose. Your dentist is giving stock tips. Euphoria everywhere. The put/call ratio screams extreme greed.

This might be the most bearish signal you’ll see.

Welcome to the contrarian world of the put/call ratio – where extreme readings mean the opposite of what they appear to mean.

🔍 What Is Put/Call Ratio

The Simple Calculation

“`

Put Volume ÷ Call Volume = Put/Call Ratio

Example:

Put volume: 1,000,000

Call volume: 800,000

Put/Call Ratio: 1.25

“`

Above 1.0: More puts than calls traded (fear/hedging dominant)

Below 1.0: More calls than puts traded (greed/speculation dominant)

What It Measures

The put/call ratio measures option market sentiment. It tells you what options traders are doing with their money – not what they’re saying, but what they’re actually betting on.

High ratio (above 1.0):

• Investors buying protection (puts)
• Speculators betting on declines
• Fear present in options market

Low ratio (below 0.7):

• Investors speculating on rallies (calls)
• Few buying protection
• Complacency/greed present

Different Types

Total Put/Call Ratio:

• Includes all options (index + equity)
• Most widely followed
• Often elevated due to index hedging

Equity Put/Call Ratio:

• Individual stocks only
• Pure sentiment measure
• Better for extremes

Index Put/Call Ratio:

• Index options only
• Shows hedging activity
• Less useful for sentiment

📈 Reading Extremes

Historical Extremes

March 2009 (Market Bottom):

• P/C ratio hit 1.5+
• Extreme fear
• Market bottomed
• 10-year bull run followed

March 2000 (Market Top):

• P/C ratio hit 0.4
• Extreme greed
• Dot-com peak
• Crash followed

October 2008 (Financial Crisis):

• P/C ratio sustained above 1.0
• Persistent fear
• Multiple opportunities for brave buyers

⚡ Contrarian Strategy

Why Extremes Matter

The put/call ratio is contrarian because it measures what people are DOING, not what they SHOULD do.

When everyone buys puts:

• They’re already positioned for downside
• They’ve already sold or hedged
• No one left to drive prices lower
• The selling pressure is exhausted

When everyone buys calls:

• They’re already positioned for upside
• They’re fully invested
• No one left to drive prices higher
• The buying pressure is exhausted

The Crowd Is Wrong at Extremes

At extreme readings, the crowd has already acted. Their money is positioned. Whatever they feared or hoped for is already priced in.

High P/C (above 1.2):

• Fear is priced in
• Downside surprise unlikely
• Upside surprise possible
• Contrarian bullish

Low P/C (below 0.6):

• Greed is priced in
• Upside surprise unlikely
• Downside surprise possible
• Contrarian bearish

Combining with Price Action

Don’t trade P/C ratio alone. Wait for price confirmation:

1. P/C spikes to extreme (>1.2 or <0.6)

2. Watch for price to confirm (bottoming pattern or topping pattern)

3. Enter on confirmation, not on P/C alone

4. Stop if price invalidates the setup

💡 Practical Application

Daily Routine

Check P/C ratio from previous day:

• Above 1.2? Note extreme fear
• Below 0.6? Note extreme greed
• Between 0.8-1.0? Normal conditions

Compare to recent range:

• 20-day average provides context
• Spikes outside range are significant
• Sustained extremes more meaningful than one-day spikes

Where to Find P/C Ratio

• CBOE website: Daily updates
• Trading platforms: Most brokerages show it
• Financial news: Bloomberg, CNBC mention extremes
• Free sources: Yahoo Finance, MarketWatch

Simple Checklist

• [ ] P/C > 1.2 = Extreme fear = Potential opportunity
• [ ] P/C < 0.6 = Extreme greed = Potential warning
• [ ] P/C 0.8-1.0 = Normal = Focus on stock selection
• [ ] Sustained extreme > Single day spike

✅ Key Takeaways

• P/C ratio measures positioning: Not prediction, but where money is positioned
• Contrarian at extremes: High P/C bullish, low P/C bearish
• Wait for confirmation: Don’t trade P/C alone; wait for price action
• Equity P/C best: Individual stock sentiment clearer than index hedging
• Sustained matters more: Multi-day extremes more reliable than single spikes
• Context is everything:

You’ve mastered reading the market’s vital signs:

• Market breadth (Advance/Decline Line)
• Volatility expectations (VIX)
• Option sentiment (Put/Call Ratio)

These tools reveal what price charts cannot – the health, psychology, and positioning of the market beneath the surface.

** Continue your journey with other Foundry series

Previous: [VIX: The Fear Index](/vix-fear-index/)

Back to: [The Foundry](/foundry/)

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This completes the Market Internals series from The Foundry — reading the market’s vital signs.

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