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Asia Optical Co 3019.TW · TWD

Information Technology · Taiwan Stock Exchange · 🇹🇼 Taiwan

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132.00

+6.88%

Close of 9 Nov 2026, in TWD

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Reference data, closing prices and charts across 45,000 companies, plus crypto, commodities and currencies.

Largest shareholders

As filed, so dates differ, and a group and its funds can both appear.

HolderSharesStakeChangeFiled
CiMei Industry Co., Ltd.34.7m12.34%—30 Apr 2025
Fankuo Investment12.3m4.38%—30 Apr 2025
Hsu (Sheng Yuan)6.7m2.38%—30 Apr 2025
The Vanguard Group, Inc.6.6m2.36%+141k30 Jun 2025
Hsu (Hsun Wen)5m1.78%—30 Apr 2025
Hsu (Pa Min)4.4m1.58%−145k30 Apr 2025
Dimensional Fund Advisors, L.P.3.7m1.33%—31 Jul 2025
Lai (I Jen)3m1.07%—30 Apr 2025
BlackRock Institutional Trust Company, N.A.2.8m0.98%—31 Jul 2025
Robeco Institutional Asset Management B.V.2.1m0.75%—30 Jun 2025
Fubon Asset Management Company Ltd.1.6m0.58%−810k30 Jun 2025
Taishin Securities Investment Trust Co. Ltd.879k0.31%−130k30 Jun 2025
Lazard Asset Management, L.L.C.747k0.27%+378k31 Jul 2025
BlackRock Advisors (UK) Limited707.8k0.25%—30 Jun 2025
Dimensional Fund Advisors, Ltd.433k0.15%—31 Jul 2025

Sources and methodology

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