What happens if the other side doesn't pay?
A derivative is a promise. Its value depends on two things, and beginners track only one of them: where the underlying goes, and whether the other side is still solvent when the promise comes due. The second is counterparty risk, and it is the reason most of the market's architecture exists.
The failure is worse than losing the gain
Recall the wheat forward that had become worth +$400 to you. If the counterparty fails, you obviously do not receive the $400. But that is the smaller half of the problem.
You entered that contract to hedge. The hedge is now gone — and you are back to carrying the full original exposure, unhedged, discovering it at the worst possible moment. You have lost the gain and the protection, simultaneously.
Worse still, the two events are correlated. Counterparties fail during market stress. Market stress is exactly when your hedge is most valuable and most needed. The technical name for this alignment is wrong-way risk: your exposure to a counterparty grows at the same moment the counterparty's ability to pay shrinks.
The three bilateral defences
1. Netting. Two firms trading with each other for years accumulate thousands of contracts, some in each direction. Without a legal agreement, a bankruptcy administrator could demand payment on every contract that favours the failed firm while paying only pennies on those that favour you — "cherry-picking". The ISDA Master Agreement prevents this by making all transactions between two parties legally one contract with a single net amount.
Put numbers on it. Two banks hold 500 trades against each other:
- 300 in your favour, worth +$800 million
- 200 against you, worth −$760 million
- Gross exposure: $800 million. Net exposure: $40 million.
Netting removed 95% of the exposure with a document. It is the single largest reduction of risk in the OTC market, and it is legal engineering, not financial engineering.
2. Collateral. Under a Credit Support Annex, the party that is out of the money posts cash or high-quality bonds as values move — usually daily. Post $35 million against that $40 million net exposure and only $5 million remains genuinely at risk. This is the OTC market's imitation of the futures market's variation margin.
3. Credit limits. A firm caps how much exposure it will hold to any one counterparty, and prices in a charge — a credit valuation adjustment — for the risk it does accept.
The case that proved the point
When Lehman Brothers filed for bankruptcy in September 2008 it was a counterparty to hundreds of thousands of derivative contracts across thousands of firms. Unwinding and settling them became one of the largest and slowest insolvencies in history, running for years, with disputed valuations on positions that had been struck bilaterally with no common price.
The contrast that shaped the following decade: Lehman's exchange-traded and centrally cleared positions were transferred or closed out within days, and the cost was absorbed entirely by the margin Lehman itself had posted. The largest of those books — its interest-rate swaps cleared in London — used up only about a third of the margin held against it, so neither the clearing houses' own capital nor the surviving members' mutualised contributions were touched at all. That is precisely what collecting margin in advance is for. Same firm, same collapse, two entirely different outcomes depending on the market structure the trade sat in. That contrast is the direct argument for what the next lesson describes.
Try it now
- Take the netting example above and recompute the net exposure if the 200 opposing trades were worth −$400 million instead of −$760 million. Notice how sensitive the net figure is to the balance of the book — and therefore how quickly it can grow as positions drift.
- Now try to find that book on a dealer's balance sheet. JPMorgan's newest annual totals are below, in a standard statement layout: total assets, total liabilities, equity. Look for a derivatives line on either side and find none. The netting above is real, but a summary balance sheet folds the derivative book into its totals; the gross and net figures are in the bank's own annual report, in the notes.
- Write one sentence naming the two separate things you would lose if a hedging counterparty failed. If your sentence has only one item in it, read the second section again.