---
format: "aidr-story-markdown/v1"
id: "61c3c26ab83a620b70150802d6d4db3712b62ad7df512c5de72e4d4853e0f2dc"
canonical_url: "https://aidr.today/61c3c26a?lang=en"
title: "KOSPI Ends Week Down 14.5% in Worst Performance Since October 2008"
lang: "en"
requested_lang: "en"
available_langs: ["en","vi"]
translation_fallback: null
fallback_fields: []
published_at: "2026-10-16T06:55:21.000Z"
category: "Industry"
topics: []
source_urls: ["https://marketbrief.now/global-markets/kospi-ends-week-down-145percent-in-worst-performance-since-october-2008-fb002eb3","https://x.com/FirstSquawk/status/2110982708893823424","https://x.com/zerohedge/status/2110576087801704650","https://x.com/FirstSquawk/status/2110893750843306096","https://x.com/TheLongInvest/status/2110775155836219425","https://x.com/elonmusk/status/2110566143983223006","https://x.com/SingularityRes/status/2110775609949298748","https://x.com/CNBC/status/2110541628381216924"]
summary: "The KOSPI index ended the week down 14.5%, its steepest weekly decline since October 2008, as foreign investors sold $3.6B in equities amid concerns over memory chip oversupply and a US September CPI print of 3.7%. A Thursday crash of over 8% triggered circuit breakers for both the KOSPI and KOSDAQ, halting trading for 20 minutes, with Samsung and SK Hynix leading the losses. South Korea's financial regulator held emergency meetings to stabilize the market, while President Lee Jae-myung issued public appeals for suicide prevention following the crash."
---

# KOSPI Ends Week Down 14\.5% in Worst Performance Since October 2008

> [Open the canonical story](<https://aidr.today/61c3c26a?lang=en>)

**Published:** 2026-10-16T06:55:21.000Z
**Category:** Industry

## Summary

The KOSPI index ended the week down 14\.5%, its steepest weekly decline since October 2008, as foreign investors sold $3\.6B in equities amid concerns over memory chip oversupply and a US September CPI print of 3\.7%\. A Thursday crash of over 8% triggered circuit breakers for both the KOSPI and KOSDAQ, halting trading for 20 minutes, with Samsung and SK Hynix leading the losses\. South Korea's financial regulator held emergency meetings to stabilize the market, while President Lee Jae\-myung issued public appeals for suicide prevention following the crash\.

## Sources

- [Story source](<https://marketbrief.now/global-markets/kospi-ends-week-down-145percent-in-worst-performance-since-october-2008-fb002eb3>)
- [Story source](<https://x.com/FirstSquawk/status/2110982708893823424>)
- [Story source](<https://x.com/zerohedge/status/2110576087801704650>)
- [Supporting source](<https://x.com/FirstSquawk/status/2110893750843306096>)
- [Supporting source](<https://x.com/TheLongInvest/status/2110775155836219425>)
- [Supporting source](<https://x.com/elonmusk/status/2110566143983223006>)
- [Supporting source](<https://x.com/SingularityRes/status/2110775609949298748>)
- [Supporting source](<https://x.com/CNBC/status/2110541628381216924>)