Volatility as Asset Class: Trading VIX Products Successfully
Volatility has grown from an abstract concept into a major asset class. VIX futures, VIX options, and various ETPs allow direct trading of volatility. Understanding the specific mechanics is essential for anyone attempting to trade volatility products.
The Core VIX Concepts
VIX (CBOE Volatility Index) measures 30-day implied volatility on S&P 500 options. It is calculated from a specific portfolio of SPX options and updated continuously during trading hours.
Key properties:
- Mean-reverting: tends to return to long-term average around 15-20
- Negatively correlated with S&P 500 returns
- Spikes dramatically during market stress
- Decays rapidly after stress subsides
VIX itself is not directly tradeable. The various ways to trade "VIX" involve derivatives: VIX futures, VIX options, and ETPs based on VIX futures.
VIX Futures Basics
VIX futures expire monthly, with contracts available for the next 9 months typically.
Key properties:
- Each contract settles to the VIX value on expiration
- Prices for different expirations form the "VIX term structure"
- Contango (long-dated contracts higher than short-dated) is most common
- Backwardation (short-dated higher) occurs during market stress
The term structure drives most VIX ETP behavior and creates both opportunities and risks.
The ETP Products
VXX (iPath Series B S&P 500 VIX Short-Term Futures ETN). Tracks a rolling position in short-term VIX futures. Most popular retail VIX ETP.
UVXY (ProShares Ultra VIX Short-Term Futures ETF). 1.5x leveraged version of VXX.
SVXY (ProShares Short VIX Short-Term Futures ETF). Inverse 0.5x VIX futures exposure.
VIXY (ProShares VIX Short-Term Futures ETF). Similar to VXX but ETF structure.
VXZ (iPath Series B S&P 500 VIX Mid-Term Futures ETN). Mid-term VIX futures exposure.
These products do NOT track VIX directly. They track rolling positions in VIX futures, which have specific decay characteristics.
The Contango Decay
In normal market conditions, the VIX term structure is in contango (longer-dated futures higher than shorter-dated). As short-term VIX futures approach expiration, they typically decline in price toward the lower spot VIX level.
For products like VXX that hold rolling positions in near-term futures, this creates systematic decay. VXX has lost over 99% of its value since inception despite VIX staying in roughly the same range.
The practical implication: holding VIX ETPs long-term is almost certainly a losing proposition. The products are designed for short-term trading, not buy-and-hold.
The Specific Trading Strategies
Short VXX during low volatility periods. The contango decay works in favor of short positions. Returns are limited but relatively consistent during quiet markets.
Long VXX before expected volatility events. When specific events are expected to increase volatility (central bank decisions, elections, earnings seasons for broad market), long positions can profit from volatility spikes.
VIX futures spreads. Trading differences between near and far VIX futures contracts. Captures term structure dynamics without pure volatility exposure.
VIX options strategies. Options on VIX futures provide specific risk/reward structures. Credit spreads, iron condors on VIX work with specific understanding of VIX dynamics.
SVXY long positions. Inverse VIX exposure benefits from contango decay. Dangerous during volatility spikes but historically profitable during normal periods.
The Specific Risks
Volatility spikes. VIX can double or triple in days during market stress. Short positions can lose multiples of initial capital.
Backwardation inversion. When term structure flips to backwardation, the normal contango advantage reverses. Short VXX positions become losing.
Compounding effects. Daily rebalancing of leveraged products creates volatility drag. UVXY in particular suffers from this.
ETN counterparty risk. VXX is an ETN, meaning you're exposed to issuer credit (Barclays). ETF alternatives (VIXY) have less counterparty risk.
Specific product mechanics. Each VIX product has specific calculation methodology, roll schedules, and expense ratios. Understanding your specific product matters.
The February 2018 Lesson
In February 2018, the "Volmageddon" event saw XIV (an inverse VIX ETN at the time) lose 95% of its value in a single day. The product was subsequently closed. This event highlights the specific risks of volatility products that are not well understood by most retail traders.
The lessons:
- Volatility products can lose extreme percentages in short periods
- Leveraged volatility products are especially dangerous
- Position sizing in volatility products should be much smaller than equivalent equity positions
- Overnight gap risk is substantial
The Specific Implementation
For traders considering volatility trading:
Start with small positions. Volatility products behave differently from stocks. Learn through experience with modest sizing.
Understand the specific product. Read the prospectus. Know the roll schedule, expense ratio, and calculation methodology.
Have specific trading thesis. Not just "I think VIX is low." Specific view on term structure, expected events, mean reversion timeframe.
Define exit before entry. VIX products can move dramatically against positions. Pre-defined exits prevent catastrophic losses.
Avoid buy-and-hold. Long-term holding of VIX ETPs almost always loses money due to contango decay.
Monitor positions actively. Volatility moves can be fast. Positions require more active attention than typical equity holdings.
The Realistic Framework
For most retail traders, volatility products are not a core trading strategy but can be useful tactical tools:
Portfolio hedging. Small VIX call positions can hedge equity portfolio tail risk. Expensive insurance but effective during crashes.
Specific event trades. Pre-positioning before expected volatility events. Modest size, pre-defined exits.
Term structure trades. For sophisticated traders willing to monitor VIX futures continuously. Specific understanding required.
Avoid: large positions in VIX ETPs, leveraged VIX products at any size, long-term holding of any VIX product.
Volatility trading is more technical than most retail strategies. The specific product mechanics, roll dynamics, and risk characteristics require substantial study to use successfully. For traders willing to invest the time, volatility can be a legitimate addition to a trading approach. For traders expecting to casually profit from "trading VIX," the specific product behaviors often produce disappointing results.
The practical starting point for interested traders: paper trade VIX products for 3-6 months before using real capital. Observe how the products actually behave vs expectations. Many traders discover through this experience that volatility trading is more complex than it initially appears.
