What is India VIX (India Volatility Index)?

Key Takeaways:

• The value of India VIX indicates the expected annualised percentage fluctuation in the Nifty 50 index.

• India VIX was introduced in April 2008 by the National Stock Exchange (NSE) to provide a benchmark for measuring market volatility.

• NSE’s Nifty VIX or India VIX is calculated using data from the Nifty 50 option chain data.

• The India Volatility Index does not predict the market direction; it only indicates the expected magnitude of market movement.

What is India VIX in the Share Market?

India VIX, or the India Volatility Index, measure the market’s expectation of volatility in the Nifty 50 index over the next 30 days. It is often referred to as the “fear gauge” of the Indian share market because it captures investor sentiment during uncertain conditions.

The India VIX (also known as Nifty VIX) is calculated from the order book data of Nifty 50 options, and its value is expressed in percentage terms. A rising India VIX indicates higher uncertainty and fear, while a falling VIX signals confidence and stability.

India VIX does not indicate the direction of the market. Instead, it shows how much the market is expected to fluctuate. A higher VIX means higher expected volatility, while a lower VIX suggests a more stable market.

This index is widely used by traders involved in options trading to adjust their strategies based on expected volatility levels in the market. It also helps investors understand whether the market is likely to remain stable or witness sharp fluctuations.

History of India VIX

The India VIX was introduced in 2008 by the National Stock Exchange (NSE) in partnership with the Chicago Board Options Exchange (CBOE), the world's largest exchange for trading options.

The NSE adapted the methodology developed by the CBOE to calculate the volatility index in a way that fits the Indian share market.

The introduction of India VIX came at a time when the global markets were facing extreme uncertainty due to the financial crisis of 2008. This made it essential for Indian investors to have a reliable measure of market volatility.

Earlier, Nifty VIX was calculated using the Black-Scholes model. It was later updated to a more advanced methodology based on order book data. At present, the VIX calculation includes both near and next month contracts for accuracy.

Importance of India VIX

India VIX plays a crucial role in understanding market behaviour, especially during uncertain times. Here’s how the volatility index is helpful for traders and investors.

• India VIX helps traders to understand market volatility and risk levels. It enables better decision-making in a volatile market environment.

• It guides option traders in selecting appropriate strategies, such as straddles or spreads, based on expected volatility in Nifty movements.

• A high India VIX signals potential sharp price swings, helping investors prepare for sudden market corrections or unexpected economic developments.

• A low India VIX indicates calm market conditions, often encouraging trend following strategies and long-term investments.

• It is also useful for portfolio hedging, allowing investors to protect their positions against adverse market movements using derivatives and options.

How is India VIX Calculated?

India VIX is calculated using the order book of the Nifty 50 options. It uses bid and ask data of call and put options across different strike prices to calculate expected volatility.

The calculation is based on the formula derived from the Black-Scholes model but modified to reflect real-time market conditions.

Formula of India VIX

India VIX = 100 x (Sum [Weighted Implied Volatility Squared] /Total weight) 1/ 2.

Here,

(Sum [Weighted Implied Volatility Squared]: It is the sum of the squared implied volatilities, each multiplied by its respective weight.

Total Weight: It represents the sum of the open interest of all options included in the calculation.

Steps Involved in the India VIX calculation

• The best bid and ask prices of out-of-the-money Nifty call and put options are used for calculation purposes.

• Both near-month and next-month option contracts are considered to estimate the expected volatility over 30 days.

• The forward index level is calculated using option prices to determine the expected future value of the Nifty index.

• The variance is computed by aggregating weighted contributions from different strike prices across the option chain of Nifty.

• The final India VIX value is obtained by taking the square root of the variance and annualising it, which is then expressed in percentage terms.

Factors Affecting the India VIX

India VIX is influenced by multiple macroeconomic and market-specific factors. These factors directly affect the investor sentiment and expectations of future volatility.

• Major economic events such as inflation data, interest rate decisions, and GDP announcements significantly impact volatility expectations in the share market.

• Global market movements and geopolitical tensions often lead to sudden spikes in India VIX due to increased uncertainty among investors.

• Corporate earnings announcements can create volatility in specific sectors, influencing overall Nifty movement and India VIX levels.

• Demand and supply dynamics in the options market directly affect option premiums, which in turn influence the calculation of India VIX.

• Unexpected events like pandemics, wars, or financial crises can cause sharp increases in India's VIX due to panic selling and uncertainty.

How To Trade Using India VIX?

India VIX is not directly traded like stocks, but it plays a crucial role in implementing trading strategies, especially in Option trading.

• When India VIX is high, traders prefer selling options strategies like short straddle or strangle to benefit from high option premiums.

• When India VIX is low, traders may use buying strategies such as a long straddle, expecting volatility to increase in future sessions.

• Rising India VIX with falling Nifty indicates bearish sentiment, helping traders position themselves for downward movements in the share market.

• Falling India VIX with rising Nifty suggests bullish stability, encouraging traders to take long positions with reduced risk expectations.

• India VIX can be used as a hedging tool by adjusting portfolio exposure during periods of expected high volatility in the share market.

FAQs

What does India VIX indicate?

India VIX indicates the expected volatility in the Nifty 50 over the next 30 days, acting as a gauge of market fear or investor sentiment.

Who publishes India VIX?

India VIX is calculated and published by India's National Stock Exchange (NSE).

What does a low India VIX indicate?

A low India VIX suggests market stability and investor confidence, often reflecting a calm or complacent market phase.

What does a high India VIX indicate?

A high India VIX signals increased uncertainty or fear in the market, typically ahead of major events or during sharp corrections.

What happens if India VIX increases?

If India VIX rises, it usually leads to higher option premiums and signals that traders expect large price swings in the near term.

Is India VIX a predictor of market direction?

India VIX does not predict market direction; it only forecasts the intensity of expected price movements.