You execute a trade. Both sides agree on the price. The deal is done. But is it really?

In Episode 8, David Axtell explains what happens after the handshake — and why the gap between agreeing a trade and actually settling it has been one of the most dangerous moments in financial markets for over fifty years.

It starts with Bankhaus Herstatt. June 26, 1974. A small German bank that collapsed mid-settlement, after counterparties had already delivered Deutschmarks but before Herstatt paid out the dollars. Banks around the world were left holding nothing. The fallout gave settlement risk its other name — Herstatt risk — and it changed the infrastructure of global finance forever.

David walks through the mechanics of how settlement actually works: correspondent banking networks, payment system cut-off times, the time zone mismatches that create windows of principal exposure lasting hours. When Party A pays USD through CHIPS in New York at 5 PM but Party B's EUR delivery through TARGET2 in Frankfurt doesn't arrive until the following morning, you're exposed to the full notional amount — not just the mark-to-market. That's what makes settlement risk different from credit risk, and far more dangerous on any single transaction.

The episode then covers how the industry solved this problem: CLS Bank, launched in 2002, settling over five trillion dollars daily across eighteen currencies using payment-versus-payment mechanics that guarantee both legs settle simultaneously or neither does. David explains how CLS membership works, what happens when settlements fail, and why non-CLS currencies in emerging markets still carry the old-fashioned principal risk that keeps operational risk managers up at night.

He also covers bilateral netting, correspondent banking relationships, and the practical realities of managing settlement in markets where CLS doesn't reach — drawing from decades of personal experience settling trades across frontier currencies.

Plus: David has a few words for Luigi about a certain bonus episode and a revelation involving forty million Cable...

Next Episode: Forwards — the workhorse of corporate hedging. Contract mechanics, physical versus cash settlement, and why $1.3 trillion trades daily.

Based on: Chapter 6 of FX Cash Products by Luigi Rondanini and David Axtell, forthcoming from Rondanini Publishing.