The 7 Pillars of the Stock Market Fear & Greed Index

The stock market is a complex ecosystem driven not only by corporate balance sheets and economic reports but also by collective investor psychology. When markets trend upward, optimism quickly turns into greed, driving valuations higher. Conversely, market sell-offs create waves of panic, prompting investors to liquidate assets below their intrinsic value. To measure these emotional swings, analysts rely on the Fear & Greed Index.

Rather than looking at a single stock or a basic charts index, the Fear & Greed Index combines seven distinct market pillars. Each pillar represents a unique mathematical formula monitoring momentum, options volume, volatility, and debt markets. In this article, we take an in-depth look at how these seven parameters are calculated and how they shape the market sentiment scores visualized on the ThinqStock Dashboard.

Pillar 1: Market Momentum

Market momentum measures the strength of the current stock market trend. It is calculated by comparing the closing price of the S&P 500 Index to its 125-day simple moving average (SMA).

• When the S&P 500 is trading significantly **above** the 125-day moving average, it indicates positive momentum and bullish investor sentiment.
• When the index drops **below** the 125-day average, it suggests a weakening trend, indicating that market participants are growing anxious and selling off assets.

Historically, the 125-day moving average acts as a psychological dividing line. When prices stay above it, bulls remain in control. When it breaks, fear begins to dominate the narrative.

Pillar 2: Stock Price Strength

Stock price strength represents the breadth of leadership in the stock market. It is determined by tracking the number of stocks on the New York Stock Exchange (NYSE) that hit new 52-week highs versus those that hit new 52-week lows.

In a healthy bull market, a large percentage of individual stocks participate in the rally, leading to a high number of new 52-week highs. When only a handful of mega-cap stocks push the index up while the rest of the market falls to new lows, it indicates a divergence. This lack of market breadth suggests underlying weakness and increases the fear score, warning of a potential correction.

Pillar 3: Stock Price Breadth

Stock price breadth measures the volume of trades flowing into advancing stocks versus declining stocks. The index tracks this using the **McClellan Volume Summation Index** for the NYSE.

This indicator compiles the daily advancing volume (amount of shares traded in stocks that closed higher) and subtracts declining volume. A positive and rising summation line indicates that heavy institutional money is accumulating stocks, signifying **greed**. A falling or negative line suggests that volume is concentrated in declining assets, showing that major players are liquidating their portfolios in **fear**.

Pillar 4: Put and Call Options

The options market provides direct insight into how traders are hedging their portfolios. This pillar calculates the **5-day moving average of the Put/Call Ratio**.

Put options represent bets that stock prices will fall (or protection against drops), while call options represent bullish bets that prices will rise.

• A Put/Call ratio **above 1.0** indicates that traders are buying more puts than calls, reflecting high defensive hedging and market **panic**.
• A ratio **below 0.6** shows that call buying dominates, indicating speculative confidence and investor **greed**.

When the put/call ratio spikes to extreme highs, it often signals that the market is excessively bearish. Paradoxically, this panic often marks a temporary bottom, making it a prime signal for contrarian buyers.

Pillar 5: Market Volatility (VIX)

Often referred to as the Wall Street "Fear Gauge", the **CBOE Volatility Index (VIX)** measures the implied volatility of S&P 500 index options over the next 30 days. The Fear & Greed Index compares the current VIX level to its **50-day moving average**.

A low and stable VIX indicates a calm, confident, and sometimes complacent market, which translates to a high **greed** rating. When VIX spikes above its 50-day average, option premiums surge because traders are rushing to buy downside protection. This spike indicates a sudden return of **fear** and volatility, often corresponding with stock market pullbacks.

Pillar 6: Safe Haven Demand

Safe haven demand measures the asset allocation shift between stocks and bonds. This metric tracks the **relative performance of the S&P 500 Index versus U.S. Treasury bonds** over the trailing 20-day period.

Bonds are considered low-risk, safe-haven assets, while stocks are riskier assets. In times of optimism, investors dump treasury bonds and pile into equities, leading to outperformance of stocks (**greed**). During geopolitical tensions or economic panics, investors execute a "flight to safety," selling stocks to purchase treasury bonds, which leads to equity underperformance (**fear**).

Pillar 7: Junk Bond Demand

Junk bond demand evaluates the appetite for credit risk in the fixed-income market. It is calculated as the **yield spread between high-yield (junk) bonds and investment-grade corporate bonds**.

Junk bonds carry a higher default risk and must pay higher yields to attract buyers. When investors are greedy and confident in the economy, they bid up junk bonds, driving their yields down and narrowing the yield spread relative to safe corporate debt. When economic anxiety rises, investors demand a much higher premium to hold risky junk debt, causing the yield spread to widen, which represents **fear**.

Summary and Application

By compiling these seven indicators, the Fear & Greed Index normalizes the score onto a scale from **0 to 100**. A single indicator can easily generate a false signal, but when options, volatility, debt spreads, and technical momentum all point in the same direction, traders gain a highly reliable proxy for market sentiment.

On the ThinqStock Dashboard, we collect and store these index scores daily, overlaying them onto actual S&P 500 charts. This makes it easy to identify when these seven pillars align at extreme values, indicating optimal zones to execute your contrarian trading plan.