Analyzing Currency Exposure

Analyzing Currency Exposure

When To Use

• Assessing FX risk across a multi-currency portfolio (equity, fixed income, alternatives)
• Evaluating whether to hedge, partially hedge, or leave currency exposure unhedged
• Comparing hedging instruments (forwards, options, cross-currency swaps) on a cost-benefit basis
• Reviewing existing hedge ratios after market moves, rebalancing events, or mandate changes
• Preparing currency risk commentary for client reporting or investment committee review

Inputs To Gather

• Portfolio holdings with currency denomination, market value, and asset class for each position
• Base (reporting) currency of the portfolio or client mandate
• Benchmark composition — currency weights in the benchmark, if applicable
• Current FX rates and forward points for relevant currency pairs
• Interest rate differentials (carry) between base currency and each foreign currency
• Hedging policy constraints — mandate limits, minimum/maximum hedge ratios, permitted instruments
• Historical volatility and correlation data for relevant currency pairs (minimum 3-year lookback recommended)
• Existing hedge positions — notional, maturity, strike (for options), mark-to-market values
• Transaction cost estimates — bid-ask spreads, roll costs, margin/collateral requirements

Workflow

1. Map gross currency exposure

   • Aggregate holdings by currency of denomination
   • Distinguish between direct exposure (asset currency) and indirect exposure (revenue currency of underlying companies, if relevant to mandate)
   • Calculate each currency's weight as a percentage of total portfolio NAV
   • Compare portfolio currency weights to benchmark weights to identify active currency bets

2. Quantify currency risk contribution

   • Compute standalone volatility of each currency pair vs. base currency
   • Estimate portfolio-level FX contribution to tracking error or total risk using variance-covariance or historical simulation
   • Identify which currency exposures are the largest contributors to overall portfolio risk
   • Flag concentrated exposures exceeding policy thresholds [VERIFY against mandate IPS limits]

3. Evaluate hedging strategies

   • Passive (static) hedge: rolling forward contracts at fixed hedge ratio (e.g., 50%, 100%)
   • Active (dynamic) hedge: adjusting hedge ratios based on valuation signals, momentum, or carry
   • Option-based protection: purchasing puts or collars to cap downside while retaining upside
   • For each strategy, estimate:
     • Carry cost or pickup (forward points / interest rate differential)
     • Roll cost over the hedge horizon (typically quarterly rolls)
     • Basis risk if hedge tenor or notional does not perfectly match exposure
     • Collateral / margin drag on portfolio liquidity

4. Assess cost-benefit trade-offs

   • Compare annualized hedge cost against expected risk reduction (e.g., cost per unit of volatility eliminated)
   • Model scenarios: base case, currency stress (+/- 2 standard deviations), and carry reversal
   • For option strategies, evaluate breakeven levels and premium decay
   • Consider tax implications of hedge gains/losses if relevant to the client structure [VERIFY jurisdiction-specific tax treatment]

5. Formulate recommendation

   • Recommend target hedge ratios by currency, supported by cost-benefit analysis
   • Specify instrument selection, tenor, and roll schedule
   • Note any residual unhedged exposure and rationale (e.g., positive carry, diversification benefit, low materiality)
   • Identify triggers for hedge ratio adjustment (e.g., FX move > X%, rebalancing threshold, policy review date)

Output

• Currency Exposure Summary Table — columns: currency, gross exposure (%), benchmark weight (%), active weight (%), hedged notional, net exposure (%)
• Risk Contribution Breakdown — FX contribution to total portfolio volatility and tracking error, by currency
• Hedging Strategy Comparison — side-by-side table of passive, active, and option-based approaches with annualized cost, expected risk reduction, and implementation complexity
• Scenario Analysis — P&L impact under base, adverse, and stress FX scenarios, with and without hedges
• Recommendation Memo — concise narrative (1-2 pages) stating proposed hedge ratios, instruments, costs, and review triggers

Quality Checks

• Confirm all currency exposures sum to 100% of portfolio NAV (no missing or double-counted positions)
• Verify forward points and rate quotes are same-day and sourced consistently
• Ensure hedge cost calculations use correct day-count conventions for each currency pair [VERIFY market convention: ACT/360 vs. ACT/365]
• Cross-check that recommended hedge ratios fall within mandate-permitted ranges
• Validate scenario assumptions are internally consistent (e.g., interest rate moves align with FX moves in stress scenarios)
• Flag any illiquid or restricted currencies where standard hedging instruments may not be available (e.g., CNY onshore vs. CNH offshore, BRL, INR) [VERIFY NDF market availability and cost]
• Mark all jurisdiction-dependent tax or regulatory points with [VERIFY]