Consider a HNI client who has allocated funds into an SIF investment strategy focused on dynamic hedging. The client is perplexed because, while their chosen benchmark index remained stable, their option-based hedge lost significant value. This is where a distributor’s role transcends simple execution; you must explain that volatility is not a single number but a landscape, commonly referred to as the volatility surface.
While Vega measures the sensitivity of an option’s price to a change in implied volatility, it assumes that volatility moves uniformly across all strikes and expirations. In reality, market participants price options differently based on their distance from the current spot price and their time to expiry.
The volatility surface is a three-dimensional map plotting implied volatility against strike prices and time-to-maturity. For instance, in Indian markets, out-of-the-money puts often command higher premiums during periods of market nervousness, a phenomenon known as the volatility skew or smile. If you are recommending a strategy that relies on these options, you must understand that your client’s portfolio is exposed to different levels of volatility risk depending on the strike prices selected.
An option might appear cheap on a surface level, but when mapped against the volatility surface, you may discover it is overpriced relative to similar contracts.
For a distributor managing portfolios, failing to account for the volatility surface can lead to inaccurate risk assessments for sophisticated clients. When completing the mandatory suitability assessment for an SIF investment strategy, you are expected to explain the risks inherent in option-based hedging. If a client assumes volatility is static, they will be blindsided by mark-to-market losses.
By utilizing the knowledge of how volatility interacts with strike and time, you transform from a mere order-taker into a partner who manages expectations and provides clear, actionable advice regarding the true risk-reward profile of the investment.
Nuance
Check Your Understanding
A client is reviewing an SIF investment strategy that utilizes various strike prices to hedge a ₹20 lakh portfolio. You note that the ‘volatility skew’ is pronounced. Which of the following best describes why the client should understand the volatility surface?
In the context of SIF suitability, why would a distributor monitor the volatility surface when a client holds deep out-of-the-money (OTM) options?
This is a companion read for Section 16.7 — Basics of Option Pricing and Option Greeks from Pass Certification Examination for Mutual Fund - Specialized Investment Fund Distributors by Akhilesh Gururani, available on Amazon Kindle.
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