Pay/Collect
Pay/Collect refers to the daily settlement mechanism in futures and certain derivative markets, where gains and losses on open positions are calculated at the end of each trading day and immediately transferred between counterparties' margin accounts — with the losing party 'paying' and the winning party 'collecting' the daily variation margin.
Key takeaways
- Pay/collect is the operational expression of daily mark-to-market settlement in exchange-traded derivatives markets.
- The daily cash transfer eliminates accumulated credit risk by preventing large unrealized losses from building up over time.
- Counterparties must fund losing positions daily or face margin calls and potential forced liquidation by the clearing house.
- Pay/collect also applies in bilateral OTC derivative markets where CSAs require daily variation margin exchange.
- The daily cash flows from pay/collect create a meaningful difference between futures and forward contracts of the same economic structure.
Explanation
Pay/Collect is the mechanistic expression of daily mark-to-market settlement — the process by which futures exchanges ensure that potential credit risk between counterparties never accumulates to dangerous levels. Rather than allowing gains and losses to compound over a contract's entire life (as in a forward contract), the clearing house calculates each position's daily profit or loss based on the change in settlement price from the prior day, and immediately transfers this amount in cash from the losing side to the winning side.
The mechanics are straightforward: at the end of each trading session, the exchange's clearing house establishes an official daily settlement price for each contract. Positions that gained value (because the settlement price moved in the holder's favor) are credited cash — they 'collect' variation margin. Positions that lost value are debited — they 'pay' variation margin. These transfers occur through the clearing house's margin system, typically settling in cash by the start of the next business day. If a paying party's margin account falls below the maintenance margin threshold, a margin call is issued requiring them to restore the account to the initial margin level.
The economic difference between futures and forwards arises entirely from pay/collect. A futures contract is economically equivalent to a series of daily forward contracts — each day, the existing position is closed at the settlement price and a new position is opened at the same price. This creates daily cash flows (the pay/collect transfers) that can be reinvested or must be funded. When futures prices are positively correlated with interest rates — as is the case for Eurodollar or SOFR futures — daily pay/collect receipts from long futures positions occur when rates rise (prices fall) and interest rates are also rising, creating a timing mismatch. This 'convexity adjustment' (also called the futures-forward convexity correction) requires that futures implied rates be adjusted downward to produce the equivalent forward rate.
In bilateral OTC markets, the equivalent of pay/collect is the daily variation margin exchange under a Credit Support Annex (CSA). When the mark-to-market of a portfolio of OTC swaps with a counterparty changes, the party with negative MTM (i.e., in an obligation position) transfers cash or eligible securities to the party with positive MTM. The CSA specifies eligible collateral types, haircuts, timing (daily or weekly), minimum transfer amounts, and thresholds. Post-crisis regulatory reforms (EMIR in Europe, CFTC rules in the U.S.) mandated daily variation margin exchange for most standardized OTC derivatives, making the OTC pay/collect mechanism function very similarly to exchange-cleared futures.
From a cash flow management perspective, pay/collect creates funding liquidity risk: a portfolio with large futures positions that moves adversely on a given day must fund the variation margin payment immediately, even if the position is a long-term strategic hedge that the manager has no intention of closing. This liquidity requirement drove several notable crisis events — including the 1987 crash (portfolio insurance programs that relied on futures hedges could not meet margin calls as the market fell) and the 2022 UK gilt crisis (pension funds using futures overlays faced massive variation margin calls as yields rose).
Formula
Daily Pay/Collect = (Today's Settlement Price − Yesterday's Settlement Price) × Contract Size × Number of Contracts
Example
A hedge fund enters a long position in 100 WTI crude oil futures contracts (each contract = 1,000 barrels) at a settlement price of $80.00 per barrel on Monday. Initial margin: $8,500 per contract × 100 = $850,000 posted to clearing house. Tuesday settlement price: $77.50 per barrel. Daily loss = ($77.50 − $80.00) × 1,000 barrels × 100 contracts = −$250,000. The fund 'pays' $250,000 in variation margin to the clearing house, which transfers it to the holder of the opposing short position. The fund's margin account balance falls from $850,000 to $600,000. Maintenance margin: $7,500 × 100 = $750,000. Since $600,000 < $750,000, the clearing house issues a margin call for $250,000 (to restore to $850,000 initial margin). If the fund fails to fund the margin call by the specified deadline, the clearing house will begin liquidating the fund's positions to protect the clearing system.
Related terms
American Option Black Scholes Model Clearing Convexity Convexity Adjustment Credit Risk Credit Support Annex Emir Eurodollar Exchange Forward Contract Futures Contract