How to Record a Variance Swap Used to Hedge Equity Volatility Exposure in a Structured Product Portfolio
Accounting for a variance swap — a derivative that pays the difference between realized and implied variance — used by financial institutions and structured product desks to hedge their vega (volatility) exposure.
| Account Name | Type | Debit ($) | Credit ($) |
|---|---|---|---|
| Variance Swap — Fair Value Asset/(Liability) | Asset (+) | 4,500,000.00 | - |
| FV Gain on Variance Swap (Trading Income — P&L) | Income (+) | - | 4,500,000.00 |
| Variance Swap Daily Mark-to-Market (Accrual) | Asset (+) | 850,000.00 | - |
| Unrealized Trading Gain (Daily MTM) | Income (+) | - | 850,000.00 |
💡 Accountant's Note
A variance swap is an OTC derivative whose payoff is based on the difference between the realized variance of an underlying asset (equity index, single stock) over the contract period and the variance strike agreed at inception. Payoff = Notional × (Realized Variance − Variance Strike). The variance strike is set so the swap has zero initial FV. Variance swaps are used by banks and structured product desks to hedge vega exposure from sold options — when implied volatility increases, the variance swap gains value (offsetting losses on sold options). They are classified as derivatives at FVTPL — no hedge accounting is typically applied (vega is not an eligible hedged risk under ASC 815/IFRS 9).
Practitioner & Systems Framework
💻 ERP Architecture
Variance swap FV at interim dates combines: (1) the realized variance accumulated to date (observable — calculated from daily returns of the underlying), and (2) the expected variance for the remaining period (implied from the volatility surface). The mark-to-market uses: current running realized variance, implied vol for the remaining term, and interpolation between the two. Daily P&L attribution splits between realized variance gains/losses (from daily returns) and implied variance changes (from vol surface movements). Variance swap notionals are quoted in 'vega notional' — the P&L per 1% change in volatility.
⚠️ Audit Flags
Variance swap FV is a Level 2 or Level 3 measurement depending on the liquidity of the underlying's options market. For S&P 500 variance swaps, the vol surface is highly liquid (Level 2). For single-stock or emerging market variance swaps, the vol surface is less observable (Level 3). Auditors test: (1) the realized variance calculation (daily squared returns of the underlying — mechanical and verifiable), (2) the implied variance for the remaining term (from the volatility surface — requires independent pricing), (3) the vega notional conversion (from variance notional). Year-end valuations require an independent pricing of the volatility surface.
📄 Required Documentation
Variance swap confirmation (underlying, variance strike, vega notional, contract period, maturity), realized variance calculation to date (daily return data), implied variance for remaining term (vol surface data from independent source), FV calculation (realized portion plus implied portion), daily P&L attribution, trader's book (long/short position), counterparty credit exposure assessment.
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General Accountant Supervisor & IFRS Specialist
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