Analyzing Commodity Derivatives

Analyzing Commodity Derivatives

When To Use

• Pricing commodity futures, options, or swaps on energy, metals, or agricultural underlyings
• Constructing or validating a forward curve from observed futures prices and basis quotes
• Estimating convenience yield for physical-delivery commodities (crude oil, natural gas, copper, grains)
• Evaluating structured commodity products such as collars, accumulators, or storage deals
• Assessing contango/backwardation dynamics and their implications for hedging or trading strategies

Inputs To Gather

• Spot and futures prices: Current spot price plus settlement prices across available contract maturities (source: exchange data, broker screens, or OTC quotes)
• Interest rate curve: Risk-free rates (e.g., SOFR or Treasury curve) for corresponding tenors
• Storage and carry costs: Warehousing fees, insurance, financing costs, and any applicable transport/delivery premiums [VERIFY against current exchange fee schedules]
• Historical volatility data: Realized vol on the underlying commodity, implied vol surface if options are in scope
• Contract specifications: Lot size, delivery location, quality grade, settlement method (physical vs. cash), and expiry calendar [VERIFY against exchange contract specs]
• Seasonal patterns: Known demand/supply cycles (e.g., heating oil winter demand, grain harvest windows)

Workflow

1. Define the analysis scope

   • Identify the commodity, exchange, and contract months in scope
   • Confirm whether the analysis covers futures only or includes options/structured products
   • Establish the pricing date and data snapshot time

2. Construct the forward curve

   • Collect settlement prices for all liquid contract months
   • Interpolate between observed points using cubic spline or piecewise-linear methods for illiquid tenors
   • Apply calendar-spread adjustments for roll periods
   • Validate curve shape: flag any inversions or discontinuities that may indicate stale data or market stress

3. Estimate convenience yield

   • Back out implied convenience yield from the cost-of-carry model: F(T) = S * exp((r + c - y) * T), solving for y
   • Compare implied convenience yield across tenors — typically higher at short maturities during supply tightness
   • Cross-check against physical market indicators: inventory levels, basis differentials, draw/injection rates
   • Note: convenience yield is not directly observable; always present as an estimate with stated assumptions

4. Price the derivative instrument

   • Futures: Mark-to-market using constructed forward curve; compute basis risk if hedging a non-standard delivery point
   • Vanilla options: Apply Black-76 model using forward price as underlying, with implied vol from the vol surface; report Greeks (delta, gamma, vega, theta)
   • Swaps: Calculate fixed-for-floating swap value by discounting the difference between the fixed price and the forward curve at each settlement date
   • Structured products: Decompose into component instruments (e.g., a collar = long put + short call on the commodity forward); price each leg independently, then aggregate

5. Assess market structure and risk

   • Characterize the term structure: contango (upward-sloping, storage costs dominate) vs. backwardation (downward-sloping, convenience yield dominates)
   • Quantify roll yield impact for positions held across contract rolls
   • Run sensitivity analysis: parallel shift in forward curve (+/- 5-10%), vol shock (+/- 20% relative), and interest rate bump
   • Identify key risk factors: liquidity concentration in specific tenors, delivery optionality, and regulatory position limits [VERIFY position limit rules per exchange and jurisdiction]

Output

• Forward curve table and chart: Observed prices, interpolated curve, and implied convenience yield by tenor
• Derivative valuation summary: Fair value, mark-to-market P&L (if an existing position), and decomposition by component for structured products
• Greeks and sensitivities: Delta, gamma, vega, theta for options; DV01/duration-equivalent for swaps; scenario-based P&L for all instruments
• Market structure commentary: Contango/backwardation assessment, roll yield estimate, and comparison to historical term structure patterns
• Risk flags: Any data gaps, illiquid tenors used in interpolation, large convenience yield deviations, or positions near regulatory limits

Quality Checks

• Verify forward curve is arbitrage-free: no negative calendar spreads in a full-carry market without a plausible convenience yield explanation
• Confirm option pricing recovers observed market premiums within bid-ask spread tolerance
• Ensure convenience yield estimates are consistent with physical market fundamentals (inventory reports, shipping rates)
• Validate that swap valuations net to zero at inception for at-market swaps
• Cross-check Greeks by bumping inputs numerically and comparing to analytical values
• Flag any assumed correlations (e.g., between delivery locations or commodity grades) with [VERIFY] markers
• Confirm all contract specifications match the relevant exchange rulebook [VERIFY expiry dates, delivery terms, and tick sizes]