Mark to Market

The concept gained prominence with the advent of organised futures exchanges and their development of daily settlement through clearinghouses to manage risk and ensure market integrity.

The futures market application of mark to market is direct and mechanical. At the end of each trading day, every open futures position is revalued at that day's settlement price — the price is marked to market. 

The gains and losses from that day's price movement are immediately collected from the losing party and paid to the gaining party through variation margin flows. An investor holding a long futures contract whose settlement price rose by three hundred dollars that day receives three hundred dollars in their margin account. 

An investor whose position declined by three hundred dollars has three hundred dollars removed from their margin account. This daily cash settlement eliminates the accumulation of unpaid obligations between counterparties and ensures that losses are collected before they grow large enough to threaten the counterparty's ability to pay.

The daily mark to market settlement in futures markets is the mechanism that makes the futures clearinghouse model financially sound — by resetting positions to current market prices every day and collecting daily cash variation margin, the clearinghouse ensures that the maximum outstanding credit exposure at any point is at most one day's price movement rather than the entire accumulated profit or loss from the position's inception. 

This design fundamentally reduces systemic counterparty risk and is why futures markets have historically experienced very few settlement failures despite operating with highly leveraged positions.

ASC 820 — The Accounting Framework

In financial reporting, mark to market is governed by Accounting Standards Codification Topic 820, Fair Value Measurement, which defines fair value and provides the framework for measuring it consistently across different types of assets and liabilities. ASC 820 superseded Statement of Financial Accounting Standards No. 157, issued in September 2006, which was the first comprehensive GAAP standard specifically addressing fair value measurement. 

ASC 820 defines fair value as the price that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants at the measurement date — an exit price in an arm's-length transaction, not a forced liquidation or distressed sale price.

This exit price definition is important because it establishes that fair value reflects the perspective of market participants generally — the price at which a willing seller and willing buyer would transact — rather than the specific circumstances of the reporting entity. Even an entity that intends never to sell an asset must report it at the price that market participants would transact at, not at a value reflecting the entity's own specific intentions.

The Three-Level Fair Value Hierarchy

The most examination-relevant aspect of ASC 820 is the three-level hierarchy for classifying fair value measurements based on the observability and reliability of the inputs used to determine them. The hierarchy prioritises observable market data over unobservable management estimates.

Level 1 assets and liabilities are valued using unadjusted quoted prices in active markets for identical assets or liabilities. 

This is the highest quality fair value measurement — a publicly traded stock with a daily closing price on a major exchange is a Level 1 asset. The price is observable, current, and directly applicable without adjustment. Level 1 measurements are the most reliable because they reflect actual market transactions for the identical instrument.

Level 2 assets and liabilities are valued using inputs other than quoted prices for identical instruments that are observable in the market — either directly as prices or indirectly through derivation from observable data. 

Level 2 inputs include quoted prices for similar assets in active markets, quoted prices for identical or similar assets in markets that are not active, and observable inputs such as interest rates, yield curves, volatility, and credit spreads. 

A corporate bond that trades infrequently might be valued using observable yield curves and credit spreads for comparable bonds rather than a direct quoted price for the specific bond — this is a Level 2 measurement.

Level 3 assets and liabilities are valued using unobservable inputs — significant inputs that reflect the reporting entity's own judgements about the assumptions market participants would use in pricing the asset. Level 3 measurements are the least reliable because they rely on internal models and management assumptions rather than observable market data. 

Complex structured products, illiquid private equity investments, and certain derivatives with no active market may require Level 3 measurements when observable inputs are unavailable or insufficient.

The hierarchy requires entities to maximise the use of observable inputs and minimise the use of unobservable inputs. When multiple inputs are available, the measurement must prioritise Level 1 over Level 2 over Level 3. Entities must disclose the level of the hierarchy at which each significant fair value measurement falls, enabling financial statement users to assess the reliability and subjectivity of reported values.

Mark to Market in Financial Reporting — The Three Security Classifications

The application of mark to market in the financial statements of corporations and financial institutions depends on the classification of the financial asset under Accounting Standards Codification Topic 320, Investments — Debt and Equity Securities. 

Three classifications produce three different accounting treatments.

Trading securities are financial assets bought and held principally for the purpose of selling in the near term to generate short-term profits from price movements. 

Trading securities are carried at fair value on the balance sheet, with unrealised gains and losses flowing through the income statement — they are recognised in net income even before any sale occurs. This treatment provides the most timely reflection of current market values in reported earnings but also produces earnings volatility as market prices fluctuate.

Available-for-sale securities are financial assets that are neither trading securities nor held-to-maturity. Available-for-sale debt and equity securities are also carried at fair value on the balance sheet, but unrealised gains and losses are not recognised in net income — instead they accumulate in accumulated other comprehensive income in the equity section of the balance sheet under ASC 220. Only when the security is actually sold are the previously deferred gains or losses reclassified from AOCI into net income. This treatment prevents market price fluctuations from producing income statement volatility for assets the entity does not intend to trade actively.

Held-to-maturity securities are debt instruments that the entity has both the positive intent and the ability to hold until maturity. HTM securities are carried at amortised cost — the original purchase price adjusted for premium or discount amortisation — rather than at fair value. Mark to market does not apply to HTM securities under ASC 320. This treatment is available only for debt instruments — equity securities cannot be classified as HTM because they have no maturity date.

Mark to Market in Margin Account Administration

In the securities industry context, mark to market refers to the daily revaluation of margin account positions to current market prices to determine whether the account meets its maintenance margin requirements. Under FINRA Rule 4210, the maintenance margin percentage is applied to the current market value of the securities in the account — not their purchase price. As prices change during each trading day, the equity in the margin account fluctuates continuously, and margin calls are triggered when the equity falls below the required maintenance percentage of the current market value.

This daily mark to market of margin positions is the securities industry equivalent of the futures market variation margin mechanism — it ensures that the broker's credit exposure to the customer is measured based on current market values rather than stale historical prices, and that margin calls are triggered promptly when positions deteriorate to levels requiring additional collateral.

The 2008 Financial Crisis and the Mark to Market Debate

The most significant controversy surrounding mark to market accounting in the securities industry context arose during the 2008 financial crisis. Financial institutions holding large portfolios of mortgage-backed securities and other structured products faced dramatic mark to market write-downs as the market for these instruments became illiquid and transaction prices fell precipitously.

Critics of mark to market accounting argued during the crisis that forcing institutions to write down assets to fire-sale prices in a temporarily illiquid market — rather than to their fundamental intrinsic values — created a self-reinforcing downward spiral. As banks recognised large fair value losses, their regulatory capital declined, forcing them to sell additional assets to restore capital ratios, which further depressed prices and triggered additional write-downs.

In April 2009, the FASB issued guidance — subsequently incorporated into ASC 820 — providing additional clarification on how to determine fair value in illiquid or distressed markets. The guidance confirmed that when the volume or level of market activity for an asset has significantly decreased, entities may need to adjust the observable transaction prices to determine fair value, recognising that distressed or forced-sale transactions may not represent orderly transactions between market participants and therefore may not represent fair value under ASC 820's definition.

FASB denied requests during both the 2008 financial crisis and the COVID-19 market disruption of 2020 to suspend mark to market accounting entirely, concluding that ASC 820 provides appropriate guidance in periods of decreased market activity and that suspension would reduce transparency rather than improve it.

The Comparison to Historical Cost Accounting

Historical cost accounting — the alternative to mark to market — records assets at their original acquisition cost and does not adjust for subsequent changes in market value. Under historical cost accounting, a bond purchased at par remains on the balance sheet at par regardless of whether interest rates subsequently rise and its market value falls, until the bond is sold or matures. No unrealised gain or loss is recognised.

Historical cost accounting prioritises reliability and verifiability over relevance and timeliness. The original purchase price is objectively verifiable from transaction records. Current market values, particularly for illiquid assets, may require judgement and estimation. However, historical cost accounting can produce financial statements that significantly misstate the economic reality of an institution's balance sheet when market values have diverged substantially from acquisition costs — either upward or downward.

The ongoing debate between mark to market and historical cost accounting reflects a fundamental tension in accounting theory between relevance — providing timely, current information — and reliability — providing verifiable, objective information. 

The current GAAP framework under ASC 320 and ASC 820 attempts to balance these objectives by requiring mark to market for trading securities and available-for-sale securities while permitting amortised cost for held-to-maturity debt, and by providing a fair value hierarchy that prioritises observable inputs over management judgement.

Examination Relevance and Key Takeaways

Mark to market is tested on the Series 65 examination in the context of fair value accounting, the three-level fair value hierarchy, financial asset classifications under ASC 320, futures market daily settlement, and the distinction between mark to market and historical cost accounting.

The key points to retain are these.

Mark to market — also called fair value accounting — values assets and liabilities at current market prices rather than original acquisition cost. In futures markets, daily mark to market produces variation margin flows that collect daily gains and losses, eliminating the accumulation of unpaid obligations and managing counterparty risk through the clearinghouse mechanism. 

In financial reporting, ASC 820 defines fair value as the exit price in an orderly transaction between market participants and establishes the three-level hierarchy: 

Level 1 — quoted prices for identical assets in active markets, the most reliable; 

Level 2 — observable inputs for similar assets or indirect observable data; 

Level 3 — unobservable management estimates, the least reliable and requiring maximum disclosure. ASC 320 governs how financial assets are classified and measured: trading securities are marked to market with unrealised gains and losses through the income statement; available-for-sale securities are marked to market with unrealised gains and losses through accumulated other comprehensive income in equity rather than the income statement; held-to-maturity securities are carried at amortised cost with no mark to market. 

The 2008 financial crisis generated significant controversy over mark to market accounting when write-downs of illiquid mortgage securities accelerated bank capital erosion — the FASB provided additional guidance in April 2009 clarifying how to measure fair value in distressed markets but declined to suspend mark to market accounting entirely. 

Historical cost accounting is the alternative that records assets at original acquisition cost without adjustment — it prioritises reliability and verifiability over the timeliness and relevance that mark to market provides.