⏱ 1-Minute Summary The Volatility Risk Premium (VRP) is the gap between implied volatility (IV) and subsequently realized volatility (HV). Because IV tends to overestimate future realized volatility, the VRP is persistently positive over the long run: and option sellers collect it as their main source of edge.
1. VRP Definition: IV − HV
The Volatility Risk Premium is defined as:
VRP = Implied Volatility (IV) − Realized Volatility (HV)
- IV is what options traders pay for future volatility today.
- HV is what volatility the stock actually delivers afterward.
When IV > HV, option prices were "too high" relative to what actually happened, the seller keeps the difference. When IV < HV, option prices were "too low" and the buyer wins.
Over long periods, VRP is positive on average: options tend to be priced a little richer than the realized move.
2. Why Is VRP Positive in the Long Run?
Several forces keep the premium persistently positive:
- Insurance demand. Buyers (especially institutions) pay up for downside protection, pushing put prices (and IV) higher than fair value.
- Crash risk / fat tails. Markets fear rare, violent crashes more than they realize them; fear is priced in even when it does not materialize.
- Supply and demand. There is more natural demand to buy protection than to sell it, so sellers get compensated with a premium.
- Behavioral factors. Loss aversion makes buyers willing to overpay for convex payoffs; sellers are rarer and demand compensation.
None of these guarantees a profit in any single trade. VRP is a long-run statistical edge, not a per-trade certainty.
The chart above shows the daily gap between implied volatility and 20-day realized volatility (HV20) as bars over time, with a dashed line marking the average gap. The bars sit mostly above zero, so on average IV exceeds the volatility that was actually realized: exactly the volatility risk premium that option sellers collect.
3. How Sellers Harvest VRP, and the Risks
Selling options is the practical way to harvest the VRP:
- Sell premium when IV is rich (high IV percentile) and let time decay do the work.
- Keep positions defined-risk (spreads) or well-capitalized to survive adverse moves, for example, if closing a position would cost ~$2,000 in the worst case, keep that cash set aside in the account for as long as the position is open, and do not use it for other investments.
- Track IV − HV or the VRP screen to time entries.
The risks are real:
- Negative VRP episodes. In crashes, realized volatility can vastly exceed IV: sellers lose.
- Event risk. Earnings and macro events can create sharp, unpriced gaps.
- Sizing discipline. The edge is thin per trade; over-leveraging one bad move can erase years of premium income. Sizing is where discipline and risk management meet: bad sizing discipline is bad risk management, and vice versa.
This is why the platform pairs selling strategies with screens (IV percentile, VRP) and stresses risk management across all learning materials.
⚠️ Platform Data Boundary: The platform provides T-1 EOD closing IV and HV, which is exactly what is needed to compute and track VRP on a daily frequency. The advanced mode's VRP filter and the VRP field on the results page operationalize this concept for multi-day-to-multi-month strategies.
⚠️ Research Use Only: This article is educational. VRP is a statistical concept, not a guarantee. Nothing here is a buy or sell signal. Use this platform's backtests as historical statistical reference only.