Market fear gauge VIX sees sharpest fall in 5 years. Know why

VIX tends to rise when uncertainty increases and falls when it reduces.

All contracts—weekly, monthly, quarterly and half-yearly—from Friday will be available with the revised lot size of 25 shares.

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Market mavens like Jimeet Modi of Samco Securities said the lower lot size will lead to a halving of margins (to trade) to ₹90,000 a lot from ₹1.8 lakh for traders of futures contracts and sellers of options contracts.

“This could result in increased volumes by participants and narrowing bid-ask (buy-sell) spreads. As VIX is calculated based on index options’ bid-ask spreads, the narrowing spreads will result in lower VIX levels," explains Modi.

"The reduction in lot sizes is a key factor behind the falling VIX," said  director of Equity Strategy at Wealth Mills Securities. "This, combined with a market tightness, particularly at higher levels, suggests potential exhaustion, further contributing to the lower volatility reading."

Index options are a big hit among retail, high networth individuals (HNI) and proprietary traders. In notional terms, index options volumes accounted for 98.4% of the ₹79,928 trillion notional turnover of total derivatives contracts on NSE.

The share of prop traders stood at 59.6% of gross notional turnover in April-February FY24, followed by individual investors (26.3%), foreign investors (5.9%), corporates (3.8%), DIIs (0.1%) and others (4.3%).

Current level of India VIX stands at 10.27 against the one-year average of 12.44.

The Nifty lot value is kept within ₹5-10 lakh. Whenever, the value exceeds ₹10 lakh—the April contract lot was worth ₹11.2 lakh—NSE revises the lot size so that the contract remains in the ₹5-10 lakh band.

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