Winstek Semiconductor Co (ROCO:3265) Institutional Ownership: 3.30% (As of Aug. 14, 2026)

Author: Vera Yuan Vera Yuan
Vera Yuan
Vera Yuan
Director of Data and Quant Analytics at GuruFocus
Focused on building reliable datasets, financial models, and research tools for value-minded investors. Committed to turning complex data into practical guidance for value-investing and long-term wealth.
Reviewed by: Charlie Tian Charlie Tian
Charlie Tian
Charlie Tian
Founder & CEO of GuruFocus
Dr. Charlie Tian is the founder and CEO of GuruFocus.com, a leading global investment research platform established in 2004. With a Ph.D. in physics, Dr. Tian transitioned from science to finance, applying a data-driven, disciplined approach to value investing.

ROCO:3265 Winstek Semiconductor Co Ltd ROCO:3265
75 GF Score
Price NT$173.00
GF Value NT$129.44
Valuation Significantly Overvalued
! 3 Warning Signs
View Full Analysis

What is Winstek Semiconductor Co Institutional Ownership?

Winstek Semiconductor Co ROCO:3265 -4.42% 75 Institutional Ownership is 3.30% as of Aug. 14, 2026. GuruFocus rates ROCO:3265 with a GF Score™ of 75/100 and a GF Value™ of NT$129.44 (Significantly Overvalued). The stock has 3 warning signs investors should review.

Institutional ownership is the percentage of shares that are owned by institutions out of the total shares outstanding. As of today, Winstek Semiconductor Co's institutional ownership is 3.30%.

Insider Ownership is the percentage of shares that are owned by company insiders relative to the total shares outstanding. As of today, Winstek Semiconductor Co's Insider Ownership is 0.00%.

Float Percentage Of Total Shares Outstanding is the percentage of float shares relative to the total shares outstanding. As of today, Winstek Semiconductor Co's Float Percentage Of Total Shares Outstanding is 0.00%.


Winstek Semiconductor Co Institutional Ownership Historical Data

* Premium members only.

The historical data trend for Winstek Semiconductor Co's Institutional Ownership can be seen below:

* For Operating Data section: All numbers are indicated by the unit behind each term and all currency related amount are in USD.
* For other sections: All numbers are in millions except for per share data, ratio, and percentage. All currency related amount are indicated in the company's associated stock exchange currency.

Winstek Semiconductor Co Institutional Ownership Chart

Winstek Semiconductor Co Historical Data

The historical data trend for Winstek Semiconductor Co can be seen below:

2025-08-31 2025-09-30 2025-10-31 2025-11-30 2025-12-31 2026-01-31 2026-04-30 2026-05-31 2026-06-30 2026-07-31
Institutional Ownership 2.36 2.33 2.36 2.36 2.51 2.56 3.12 3.14 3.25 3.30
ROCO:3265
75GF Score
Winstek Semiconductor Co Ltd ROCO:3265
Institutional Ownership is just one metric. See GF Score™, valuation, warning signs, and more.
View Full Analysis

Winstek Semiconductor Co Institutional Ownership Calculation

The percentage of shares that are owned by institutions out of the total shares outstanding.

What does a Institutional Ownership of 3.30% mean?
Winstek Semiconductor Co (ROCO:3265) has a Institutional Ownership of 3.30% as of Aug. 14, 2026. Institutional ownership equals the percent of shares owned by financial institutions relative to total shares. View historical data on Winstek Semiconductor Co and its competitors.
Is Winstek Semiconductor Co's Institutional Ownership too high?
Winstek Semiconductor Co's current Institutional Ownership is 3.30%. Overall, Winstek Semiconductor Co has a GF Score™ of 75/100 and is considered Significantly Overvalued, reflecting its overall financial health beyond just this single metric.
How does Winstek Semiconductor Co's Institutional Ownership compare to NVDA and AVGO?
Winstek Semiconductor Co's Institutional Ownership of 3.30% can be compared against companies in the Semiconductors industry. See the competitive comparison table and distribution chart on this page for a detailed peer-by-peer breakdown.
What is a good Institutional Ownership for a Semiconductors company?
A good Institutional Ownership depends on the Semiconductors industry context. However, Institutional Ownership should not be evaluated in isolation — investors should consider it alongside profitability, growth, and financial strength metrics. Use the industry distribution chart on this page to see where any company falls relative to its peers.
What does a high Institutional Ownership mean?
A high Institutional Ownership can signal that a stock is expensive relative to its fundamentals. Institutional ownership equals the percent of shares owned by financial institutions relative to total shares. View historical data on Winstek Semiconductor Co and its competitors. Winstek Semiconductor Co's current Institutional Ownership is 3.30%. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Winstek Semiconductor Co stock overvalued right now?
Based on GuruFocus' analysis, Winstek Semiconductor Co (ROCO:3265) is currently considered Significantly Overvalued. The stock's GF Value™ is NT$129.44, compared to a current price of NT$173.00 — trading 33.7% above its estimated fair value. The current Institutional Ownership is 3.30%. Winstek Semiconductor Co's overall GF Score™ is 75/100 with 3 warning signs to review. Investors should evaluate multiple metrics — including profitability, growth, and financial strength — before making a decision.
How is Institutional Ownership calculated?
Institutional Ownership is calculated from a company's financial statements. For Winstek Semiconductor Co (ROCO:3265), the current Institutional Ownership is 3.30% as of Aug. 14, 2026. GuruFocus calculates this using data sourced from SEC filings and annual reports. See the calculation section and 30-year financial data on this page for the full breakdown.

Is Winstek Semiconductor Co (ROCO:3265) Overvalued in 2026?

Based on GuruFocus' analysis, Winstek Semiconductor Co stock appears to be overvalued. The current stock price of NT$173.00 is trading 33.7% above its estimated GF Value™ of NT$129.44. GuruFocus considers Winstek Semiconductor Co to be Significantly Overvalued.

Key valuation signals for ROCO:3265:

  • Institutional Ownership: 3.30%
  • GF Value™: NT$129.44 vs. price of NT$173.00 (33.7% above fair value)
  • GF Score™: 75/100 with 3 warning signs

No single metric tells the full story. See the ROCO:3265 stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.


Winstek Semiconductor Co Business Description

Address No. 176-5, Luliaokeng, 6th Ling, Qionglin Township, Hualung Chun, Chiung Lin, Hsinchu, TWN, 307410
Winstek Semiconductor Co Ltd is engaged in testing and packing services for chips and wafers. The company offers services in Test, Bump, Backend services, and vertical analysis.
75GF Score

Get the complete analysis for ROCO:3265

Institutional Ownership is just one metric. See GF Value™, 30-year financials, guru trades, warning signs, and more.

NT$173.00
Price
NT$129.44
GF Value