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單井3490.TW Institutions

TW StockOptoelectronic
(No presentation for 3490)

單井（3490）Institutional Investors Holding Ratio

單井（3490）Retail Long/Short Margin

單井（3490）Holdings of Investors

單井（3490）Holdings of Directors and Supervisors

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Chg. of Retail Long Margin
Price
DateChg. of Retail Long MarginChg. of Retail Short MarginRetail Margin RatioRetail Long Margin UsagePrice
2026-03-0219-0.061,204%25.2
2026-02-265-0.061,190%25.1
2026-02-2527-0.061,186%24.95
2026-02-24-10-0.061,167%24.75
2026-02-23-9-0.061,174%24.4
2026-02-11--0.061,181%23.7
2026-02-10-7-0.061,181%23.6
2026-02-09-1-0.061,186%23.9
2026-02-06-25-0.061,186%24
2026-02-05-46-0.061,205%24.3
2026-02-0414-0.061,238%24.55
2026-02-0317-0.061,228%23.45
2026-02-028-0.061,215%23
0%Foreign Investors
0%Investment Trust
0.11%Dealer

Net Buying & Selling

Accumulated K Shares in Last 30 days

307Foreign Investors
0Investment Trust
1Dealers

Days of Net Buying in Last 30 days

18Foreign Investors
0Investment Trust
2Dealers
Foreign Investors
Investment Trust
Dealer
Price
DateForeign InvestorsInvestment TrustDealerTotal
2026-03-0345--45
2026-03-0265--65
2026-02-2634--34
2026-02-25-9---9
2026-02-24133--133
2026-02-23106--106
2026-02-1131--31
2026-02-10-56---56

Change in last month: No Change

Holding Ratio
Price

Large Retail Investor

Retail Investor

Net Buying of Investors

Large Retail: 18 Weeks

Retail Investor: 11 Weeks

Holding Ratio of Large Retail
Holding Ratio of Retail Investor
Price
DateHolding of Large Retail Investor (%)Holding Chg. of Large Retail Investor (%)
2026-02-2618.12+0.05
2026-02-1118.08+0.31
2026-02-0617.76+0.05
2026-01-3017.71+0.13
2026-01-2317.58-0.37
2026-01-1617.95+0.31
2026-01-0917.64+0.53
2026-01-0217.11-0.69