DFX Intelligence
Which companies just had a verified incident, who lends to them and who owns them. Every claim carries its evidence level and its source. How we decide what is confirmed
Global Financial Service Disruptions
Korea Exchange
securities exchange · KR · East Asia · Korea Exchange
Technical failureStatus: resolvedTier 1Severity 3 of 5Evidence confidence: highAnalyst-verified
During a market panic linked to the Iran conflict on 9 Mar 2026, a KRX matching engine error caused stock orders at every brokerage to be delayed or rejected in two brief windows and halted the KODEX WTI crude oil futures ETF for about 2.5 hours.
Original: 한국거래소 전산 이상으로 일부 시간대에 주식 주문이 지연되거나 거부되는 현상이 발생했다.
- First disruption
- Mar 9 03:30 UTC
- First public signal
- Mar 9 (brokerages reported order delays and rejections; KRX disclosure)
- Acknowledged
- Mar 9
- Restored
- Mar 9 06:00 UTC
- Duration
- 2.5 hours
- DFX first recorded
- Nov 5 14:58 UTC
What was restricted
tradingScope: country wide
Orders at all securities firms delayed or rejected 12:30 to 12:33 and 13:39 to 13:41 KST; KODEX WTI crude futures ETF halted about 2.5 hours (12:32 to about 15:00).
Cause, kept in separate layers
- What the institution said
- Matching engine error during single-price auction after a circuit breaker; data mismatch
- DFX classification
- Technical failure (cyber: unconfirmed)
- Conflicting reports
- Exact halt and disclosure times differ slightly across reports (12:32, 12:40, 12:46).
Evidence
- MTN · 2026-03-09 · ko
- SBS Biz · 2026-03-10 · ko
- Herald Corp · 2026-03-09 · ko
- CEO Score Daily · 2026-03-10 · ko