What is the volatility risk premium?

The volatility risk premium (VRP) is the difference between implied volatility (IV), the level of volatility priced into options markets, and subsequent realized volatility (RV), the actual magnitude of price movements that occurs. Empirically, implied volatility exceeds realized volatility roughly 85% of the time, meaning options are systematically "overpriced" relative to the volatility that materializes. This persistent spread is one of the most well-documented risk premiums in finance.

The VRP exists because investors are risk-averse and willing to pay above fair value for protection. Just as homeowners pay fire insurance premiums that exceed expected losses because they value the peace of mind, investors pay elevated option premiums for portfolio protection. The sellers of that protection (typically hedge funds, prop trading firms, and sophisticated institutional investors) earn the VRP in exchange for bearing the risk of occasional large losses when realized volatility spikes above implied.

Harvesting the VRP has become a major strategy category in modern finance. Approaches include systematically selling put options on the S&P 500, writing covered calls, selling VIX futures (which embed the VRP through the term structure), and running more complex dispersion or variance swap strategies. During calm markets, these strategies generate attractive, steady returns. The catch is that the VRP reverses violently during crises: the 15% of the time when realized volatility exceeds implied can produce catastrophic losses for sellers.

The risk profile of VRP strategies is highly asymmetric. Returns are typically small and positive most of the time, with occasional large drawdowns. This "picking up pennies in front of a steamroller" profile means that risk management is paramount. The February 2018 Volmageddon event, where the XIV inverse VIX product lost 96% of its value overnight, illustrated what happens when VRP sellers are caught in a vol spike without adequate hedging. Understanding the VRP is essential for anyone trading options or building volatility-aware portfolios, as it represents a genuine, persistent risk premium, but one that demands deep respect for the tail risk involved.