Intraday CCP Margin Spike on a Degraded Platform — severe-but-plausible scenario — ITOL

Vector: Liquidity & Confidence · Severity: extreme

A violent rates move triples variation margin across the cleared book, and the intraday call lands while the margin platform is mid-incident. The bank has an hour to choose: pay late and enter default territory at the CCP (central counterparty), or pay a nine-figure number it cannot independently verify.