A hands-on options curriculum covering real trading concepts. Read the lessons, work through examples, and test your knowledge.
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Lesson 4: 17.4: Risk Parity & Equal Risk Contribution (ERC) Portfolios
Construct Equal Risk Contribution (ERC) portfolios, risk budgeting, and leverage-enhanced risk parity strategies.
1. The Risk Parity Philosophy
Traditional 60/40 equity/bond portfolios derive over 90% of total portfolio volatility from equities, leaving them vulnerable during equity crashes.
Risk Parity allocates capital such that every asset class contributes equally to overall portfolio risk: Marginal Contribution to Risk (MCR_i) × w_i = Total Variance / N.
★ Equal Risk Contribution (ERC): Low-volatility assets (e.g., Treasury bonds) receive higher dollar weightings so their risk contribution equals high-volatility assets.
2. Leveraged Risk Parity & Volatility Targeting
To achieve equity-like target returns, Risk Parity funds apply moderate leverage to the low-volatility bond portion of the portfolio.
Dynamic volatility targeting scales total leverage inversely with real-time market volatility to maintain constant portfolio risk.
Click to enlargeIV Crush Scenario Visualizer
Implied Volatility (IV) Crush is the primary account-killer for option buyers after earnings announcements. Play with the controls below to see how option premium collapses depending on Vega.
Scenario Modeling
KNOWLEDGE RECONNAISSANCE
Why does a traditional 60/40 capital-weighted portfolio fail to achieve true risk diversification?
More lessons in this module
- 17.0: Modern Portfolio Theory (MPT) & Efficient Frontier Optimization
- 17.1: Capital Asset Pricing Model (CAPM), Beta, & Security Market Line
- 17.2: Multi-Factor Risk Models (Fama-French, Carhart, & Barra Factors)
- 17.3: Black-Litterman Model & Bayesian Asset Allocation
- 17.5: Dynamic Rebalancing, Tax-Loss Harvesting, & Friction Management
- 17.6: Alternative Beta, Risk Premia, & Smart Beta Indexing
- 17.7: Tail Risk Hedging & Downside Protection Frameworks
- 17.8: Institutional Asset-Liability Management (ALM) & Endowment Models
Signal Desk is where you practice this on real stocks: real option chains (about 15 minutes delayed), the Trade Check and a paper-trading account that risks no real money. Join to add it, your progress tracking and PDF downloads.