---
format: "aidr-story-markdown/v1"
id: "f072901a10b93e602c67edefd3a6e7aecc8790df6e31bef2f1e671aa981cde75"
canonical_url: "https://aidr.today/f072901a?lang=en"
title: "TSMC Shares Fall 6.4% in AI Selloff as Chipmaker Plans New 3nm Tainan Fab"
lang: "en"
requested_lang: "en"
available_langs: ["en","vi"]
translation_fallback: null
fallback_fields: []
published_at: "2026-10-15T20:39:17.000Z"
category: "Industry"
topics: ["tsmc","chips","samsung","nvidia"]
source_urls: ["https://marketbrief.now/earnings/tsmc-shares-fall-64percent-in-ai-selloff-as-chipmaker-plans-new-3nm-tain-e6b56c76","https://x.com/Techmeme/status/2110611072071979012","https://x.com/Aaronwei3n/status/2110613994495152390","https://x.com/FirstSquawk/status/2110618397746872656","https://x.com/Reuters/status/2110709780650320346","https://x.com/firesidealpha/status/2110628966851829836","https://x.com/aleabitoreddit/status/2110645575469461611","https://x.com/sssjeffpu/status/2110637912035655978"]
summary: "TSMC shares fell 6.4% on Thursday amid a broader selloff in Asian tech and AI stocks, even as the chipmaker unveiled plans for an additional 3nm fab in Tainan, Taiwan, slated for production in the first half of 2028."
---

# TSMC Shares Fall 6\.4% in AI Selloff as Chipmaker Plans New 3nm Tainan Fab

> [Open the canonical story](<https://aidr.today/f072901a?lang=en>)

**Published:** 2026-10-15T20:39:17.000Z
**Category:** Industry
**Topics:** tsmc, chips, samsung, nvidia

## Summary

TSMC shares fell 6\.4% on Thursday amid a broader selloff in Asian tech and AI stocks, even as the chipmaker unveiled plans for an additional 3nm fab in Tainan, Taiwan, slated for production in the first half of 2028\.

## Sources

- [Story source](<https://marketbrief.now/earnings/tsmc-shares-fall-64percent-in-ai-selloff-as-chipmaker-plans-new-3nm-tain-e6b56c76>)
- [Story source](<https://x.com/Techmeme/status/2110611072071979012>)
- [Story source](<https://x.com/Aaronwei3n/status/2110613994495152390>)
- [Story source](<https://x.com/FirstSquawk/status/2110618397746872656>)
- [Supporting source](<https://x.com/Reuters/status/2110709780650320346>)
- [Story source](<https://x.com/firesidealpha/status/2110628966851829836>)
- [Supporting source](<https://x.com/aleabitoreddit/status/2110645575469461611>)
- [Supporting source](<https://x.com/sssjeffpu/status/2110637912035655978>)

