Iroc Co (3555.TWO) Stock Price

Iroc Co Price

CLOSED
159.50TWD-3.00 (-1.86 %)
Market closed

Revenue at Iroc Co has contracted by 6.4% per year over the past 19 years to 282.48 M TWD. Earnings per share have declined at 21.1% per year over the last 11 years. Iroc Co's net margin stands at 15.7%, down from 128.2% several years earlier. Iroc Co currently offers a dividend yield of about 0.13%. The stock trades about 268% above its 52-week low.

Iroc Co stock price

Volume
Ex-Dividend
Details

Stock Price

How to Read This Chart

This chart tracks the historical stock price of Iroc Co over time. You can switch between daily, weekly, and monthly views and select custom time ranges — from a single day to the full available history. Use the toggle to view price changes in absolute currency terms or as a percentage change relative to the starting date.

Total Return vs. Price Return

The "Total Return" toggle includes reinvested dividends on top of the pure price movement. This is critical because dividends can account for a significant portion of long-term returns. Historically, roughly 40 % of the S&P 500's total return has come from dividends. Always compare total return when evaluating a stock's real performance against a benchmark.

Intraday Price Data

When viewing a one-day time frame, the chart displays real-time intraday price movements. This is useful for observing how Iroc Co stock reacts to market openings, earnings releases, or breaking news throughout the trading session.

What to Look For

Look for long-term trends (sustained upward or downward movements over months and years), support and resistance levels (price zones where the stock repeatedly bounces or reverses), and volatility (how much the price fluctuates day to day). Comparing Iroc Co's price chart to a market index like the S&P 500 can reveal whether the stock is outperforming or underperforming the broader market.

Iroc Co Stock Price History
DateIroc Co Price
8/25/2026159.50 TWD
8/24/2026162.50 TWD
8/21/2026163.00 TWD
8/20/2026166.50 TWD
8/19/2026159.00 TWD
8/18/2026170.00 TWD
8/17/2026159.00 TWD
8/14/2026162.00 TWD
8/13/2026167.00 TWD
8/12/2026168.50 TWD
8/11/2026164.50 TWD
8/10/2026161.50 TWD
8/7/2026156.50 TWD
8/6/2026157.50 TWD
8/5/2026156.50 TWD
8/4/2026147.00 TWD
8/3/2026146.50 TWD
7/31/2026142.00 TWD
7/30/2026135.00 TWD
7/29/2026129.00 TWD
7/28/2026141.00 TWD
7/27/2026156.00 TWD
7/24/2026159.00 TWD
7/23/2026160.50 TWD
7/22/2026146.00 TWD
7/21/2026140.50 TWD
7/20/2026135.50 TWD
7/17/2026142.00 TWD
7/16/2026152.00 TWD
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7/14/2026151.50 TWD
7/13/2026164.50 TWD
7/10/2026179.50 TWD
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7/8/2026184.00 TWD
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6/30/2026201.50 TWD
6/29/2026181.50 TWD
6/26/2026175.50 TWD
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6/18/2026199.00 TWD
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4/28/2026236.00 TWD
4/27/2026240.00 TWD
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4/23/2026228.00 TWD
4/22/2026247.50 TWD
4/21/2026250.00 TWD
4/20/2026260.50 TWD
4/17/2026260.00 TWD
4/16/2026236.50 TWD
4/15/2026215.00 TWD
4/14/2026220.50 TWD
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4/10/2026195.00 TWD
4/9/2026177.50 TWD
4/8/2026181.50 TWD
4/7/2026165.00 TWD
4/2/2026150.00 TWD
4/1/2026157.00 TWD
3/31/2026149.00 TWD
3/30/2026152.50 TWD
3/27/2026153.00 TWD
3/26/2026161.50 TWD
3/25/2026174.00 TWD
3/24/2026166.00 TWD
3/23/2026184.00 TWD
3/20/2026204.00 TWD
3/19/2026224.50 TWD
3/18/2026204.50 TWD
3/17/2026186.00 TWD
3/16/2026178.00 TWD
3/13/2026162.00 TWD
3/12/2026147.50 TWD
3/11/2026134.50 TWD
3/10/2026122.50 TWD
3/9/2026117.50 TWD
3/6/2026123.00 TWD
3/5/2026114.00 TWD
3/4/2026109.00 TWD
3/3/2026121.00 TWD
3/2/2026127.50 TWD
2/26/2026141.50 TWD
2/25/2026129.50 TWD
2/24/2026118.00 TWD
2/23/2026117.50 TWD
2/11/2026121.00 TWD
2/10/2026110.00 TWD
2/9/2026109.00 TWD
2/6/2026106.50 TWD
2/5/2026117.50 TWD
2/4/2026116.50 TWD
2/3/2026125.00 TWD
2/2/2026123.00 TWD
1/30/2026112.00 TWD
1/29/2026102.00 TWD
1/28/202693.10 TWD
1/27/202684.70 TWD
1/26/202686.80 TWD
1/23/202684.80 TWD
1/22/202682.30 TWD
1/21/202681.80 TWD
1/20/202683.90 TWD
1/19/202685.90 TWD
1/16/202684.20 TWD
1/15/202683.10 TWD
1/14/202684.50 TWD
1/13/202684.10 TWD
1/12/202685.90 TWD
1/9/202687.20 TWD
1/8/202691.10 TWD
1/7/202689.20 TWD
1/6/202689.20 TWD
1/5/202687.50 TWD
1/2/202688.50 TWD
12/31/202584.80 TWD
12/30/202587.30 TWD
12/29/202583.80 TWD
12/26/202584.00 TWD
12/24/202585.70 TWD
12/23/202586.00 TWD
12/22/202587.50 TWD
12/19/202587.50 TWD
12/18/202589.00 TWD
12/17/202594.60 TWD
12/16/202588.30 TWD
12/15/202592.20 TWD
12/12/202583.90 TWD
12/11/202581.20 TWD
12/10/202585.10 TWD
12/9/202581.80 TWD
12/8/202578.60 TWD
12/5/202574.90 TWD
12/4/202568.10 TWD
12/3/202567.10 TWD
12/2/202568.20 TWD
12/1/202570.60 TWD
11/28/202569.50 TWD
11/27/202571.50 TWD
11/26/202569.70 TWD
11/25/202564.40 TWD
11/24/202562.20 TWD
11/21/202558.50 TWD
11/20/202561.30 TWD
11/19/202561.30 TWD
11/18/202560.80 TWD
11/17/202563.90 TWD
11/14/202566.60 TWD
11/13/202571.40 TWD
11/12/202568.00 TWD
11/11/202568.30 TWD
11/10/202567.70 TWD
11/7/202568.70 TWD
11/6/202572.00 TWD
11/5/202574.00 TWD
11/4/202572.60 TWD
11/3/202573.40 TWD
10/31/202579.00 TWD
10/30/202579.00 TWD
10/29/202583.80 TWD
10/28/202582.00 TWD
10/27/202590.40 TWD
10/23/202586.40 TWD
10/22/202578.60 TWD
10/21/202583.50 TWD
10/20/202587.00 TWD
10/17/202589.70 TWD
10/16/202586.40 TWD
10/15/202578.60 TWD
10/14/202571.50 TWD
10/13/202567.60 TWD
10/9/202569.10 TWD
10/8/202571.80 TWD
10/7/202569.30 TWD
10/3/202569.70 TWD
10/2/202572.50 TWD
10/1/202566.50 TWD
9/30/202560.50 TWD
9/26/202555.00 TWD
9/25/202550.00 TWD
9/24/202551.80 TWD
9/23/202548.95 TWD
9/22/202544.50 TWD
9/19/202547.85 TWD
9/18/202550.00 TWD
9/17/202550.40 TWD
9/16/202549.90 TWD
9/15/202547.65 TWD
9/12/202543.35 TWD
9/11/202543.70 TWD
9/10/202547.90 TWD
9/9/202553.00 TWD
9/8/202554.10 TWD
9/5/202551.20 TWD
9/4/202551.70 TWD
9/3/202554.10 TWD
9/2/202552.20 TWD
9/1/202554.70 TWD
8/29/202555.60 TWD
8/28/202558.20 TWD
Access this data via the Eulerpool API

Iroc Co Revenue, EBIT, Net Income

  • 3 Years

  • 5 Years

  • 10 Years

  • 25 Years

  • Max

Revenue
EBIT
Net Income
Details
Date
Revenue
EBIT
Net Income
Jan 1, 2018
215.72 M TWD
-45.71 M TWD
-18.69 M TWD
Jan 1, 2019
164.03 M TWD
-86.89 M TWD
-52.63 M TWD
Jan 1, 2020
152.06 M TWD
-55.45 M TWD
-63.40 M TWD
Jan 1, 2021
18.75 M TWD
-33.00 M TWD
24.04 M TWD
Jan 1, 2022
23.23 M TWD
-107.85 M TWD
-110.08 M TWD
Jan 1, 2023
65.41 M TWD
-21.19 M TWD
-18.33 M TWD
Jan 1, 2024
65.00 M TWD
-4.30 M TWD
-5.22 M TWD
Jan 1, 2025
282.48 M TWD
37.09 M TWD
44.26 M TWD

Iroc Co Income Statement, Balance Sheet, Cash Flow Statement

Last updated Aug 27, 2026, 9:42 PM
 
REVENUEB TWD
REVENUE GROWTH%
GROSS MARGIN%
GROSS INCOMEB TWD
EBITM TWD
EBIT MARGIN%
NET INCOMEM TWD
NET INCOME GROWTH%
DIV.TWD
SHARESM
2010201120122013201420152016201720182019202020212022202320242025
2.722.760.960.880.330.330.190.250.220.160.150.020.020.070.070.28
58.641.66-65.34-7.84-62.13-0.90-41.3928.87-14.00-23.72-7.32-88.1627.78182.61333.85
57.9944.2214.212.3826.055.4417.019.201.40-20.125.2616.6730.4323.0826.1510.28
1.581.220.140.020.090.020.030.02-0.030.010.010.020.020.03
711.00340.00-696.00-581.00-317.00-290.009.00-29.00-45.00-86.00-55.00-33.00-107.00-21.00-4.0037.00
26.1812.31-72.73-65.87-94.91-87.614.64-11.60-20.93-52.44-36.18-183.33-465.22-32.31-6.1513.12
732.00354.00-951.00-550.00-318.00-286.0011.0079.00-18.00-52.00-63.0024.00-110.00-18.00-5.0044.00
2,611.11-51.64-368.64-42.17-42.18-10.06-103.85618.18-122.78188.8921.15-138.10-558.33-83.64-72.22-980.00
0.20
4.544.815.315.315.717.8923.3025.8625.7630.4430.4430.4425.7625.7630.4430.44
Details

Income Statement Key Figures

Revenue and Revenue Growth

Revenue is the starting point of every income statement — it measures the total sales Iroc Co generates from its core business. Revenue growth (expressed as year-over-year percentage change) is one of the most important indicators of business momentum. Sustained growth above 10 % annually is generally considered strong, while declining revenue is a serious warning sign that demands investigation.

Gross Margin

Gross margin = (Revenue − Cost of Goods Sold) ÷ Revenue. It reveals what percentage of each dollar of revenue Iroc Co retains after direct production costs. High gross margins (above 50 %) are typical of asset-light businesses like software and brands, while capital-intensive industries like manufacturing often operate below 30 %. Compare Iroc Co's gross margin to industry peers and track it over time to spot improving or deteriorating pricing power.

EBIT and EBIT Margin

EBIT measures operating profit — what remains after subtracting all operating expenses (including R&D, sales, and administrative costs) from gross profit. The EBIT margin shows this as a percentage of revenue. Because it excludes interest and taxes, EBIT allows fair comparisons between companies with different debt levels and tax jurisdictions. A rising EBIT margin indicates improving operational efficiency.

Net Income and Earnings Per Share (EPS)

Net income is the company's final profit after all expenses, interest, and taxes. Dividing net income by the number of shares outstanding gives you EPS — the single most influential metric in stock valuation. Consistent EPS growth is the primary driver of long-term stock price appreciation. Always check whether EPS growth comes from genuine profit improvement or from share buybacks reducing the share count.

Shares Outstanding

The total number of shares Iroc Co has issued. A declining share count (through buybacks) boosts EPS and signals management confidence. A rising share count (through stock issuance) dilutes existing shareholders. Always monitor this number alongside EPS to get the full picture of per-share value creation.

Analyst Estimates

The projected figures represent consensus estimates from professional analysts. Compare these forecasts against Iroc Co's historical growth rates to assess whether expectations are realistic. A company that consistently beats consensus estimates tends to see its stock price rewarded over time, while repeated misses erode investor confidence.

Iroc Co stock margins

The Iroc Co margin analysis displays the gross margin, EBIT margin, as well as the profit margin of Iroc Co. The EBIT margin (EBIT/sales) indicates the percentage of sales that remains as operating profit. The profit margin shows the percentage of sales that remains for Iroc Co.
  • 3 Years

  • 5 Years

  • 10 Years

  • 25 Years

  • Max

Gross margin
EBIT margin
Profit margin
Details
Date
Gross margin
EBIT margin
Profit margin
Jan 1, 2018
1.70 %
-21.19 %
-8.66 %
Jan 1, 2019
-20.66 %
-52.97 %
-32.08 %
Jan 1, 2020
5.62 %
-36.47 %
-41.70 %
Jan 1, 2021
20.68 %
-176.05 %
128.24 %
Jan 1, 2022
31.48 %
-464.26 %
-473.86 %
Jan 1, 2023
23.36 %
-32.39 %
-28.02 %
Jan 1, 2024
27.49 %
-6.61 %
-8.02 %
Jan 1, 2025
10.58 %
13.13 %
15.67 %

Iroc Co Stock Revenue, EBIT, Earnings per Share

The Iroc Co earnings per share therefore indicates how much revenue Iroc Co has generated per share in a given period. The earnings before interest and taxes per share shows how much of the operating profit corresponds to each share. The earnings per share indicates how much of the profit belongs to each share.
  • 3 Years

  • 5 Years

  • 10 Years

  • 25 Years

  • Max

Revenue per Share
EBIT per share
Earnings per Share
Details
Date
Revenue per Share
EBIT per share
Earnings per Share
Jan 1, 2018
8.37 TWD
-1.77 TWD
-0.73 TWD
Jan 1, 2019
0.00 TWD
0.00 TWD
0.00 TWD
Jan 1, 2020
0.00 TWD
0.00 TWD
0.00 TWD
Jan 1, 2021
0.00 TWD
0.00 TWD
0.00 TWD
Jan 1, 2022
0.90 TWD
-4.19 TWD
-4.27 TWD
Jan 1, 2023
2.54 TWD
-0.82 TWD
-0.71 TWD
Jan 1, 2024
2.14 TWD
-0.14 TWD
-0.17 TWD
Jan 1, 2025
0.00 TWD
0.00 TWD
0.00 TWD

Iroc Co business model & stock analysis

Iroc Co Eulerpool Fair Value

Details

Fair Value Estimate

What Is Fair Value?

Fair value is an estimate of what a stock is truly "worth" based on its financial fundamentals, independent of the current market price. If the calculated fair value is above the current share price, the stock may be undervalued — and vice versa. This chart shows three different fair value approaches so you can cross-check them against each other.

Earnings-Based Fair Value

Calculated by multiplying the current earnings per share (EPS) by the average historical P/E ratio over a selected multi-year period. The smoothing over several years filters out temporary spikes or dips. If this fair value exceeds the market price, it suggests the stock is cheap relative to its earning power.

Example: Fair Value (Earnings) 2022 = EPS 2022 × Average P/E 2019–2021

Revenue-Based Fair Value

Derived by multiplying revenue per share by the average historical price-to-sales ratio. This method is particularly useful for companies with volatile or temporarily depressed earnings, as revenue tends to be more stable than profits. It answers: "At what price has the market historically valued each dollar of this company's sales?"

Example: Fair Value (Revenue) 2022 = Revenue per Share 2022 × Average P/S 2019–2021

Dividend-Based Fair Value

Calculated by dividing the dividend per share by the average historical dividend yield. This approach is most relevant for mature, consistently dividend-paying companies. If the resulting fair value is higher than the current price, it implies the stock offers a better yield than its historical average.

Example: Fair Value (Dividend) 2022 = Dividend per Share 2022 ÷ Average Yield 2019–2021

How to Use This Chart

When all three fair value lines converge above the current price, it strengthens the case that the stock is undervalued. When they diverge, investigate why — it may indicate a structural shift in margins, payout policy, or growth rate. The forward estimates on the right extend the analysis using projected fundamentals, helping you assess whether the current price already reflects future growth expectations.

Iroc Co historical P/E ratio, EBIT multiple, and P/S ratio

Iroc Co annual returns

Details

Annual Return

What This Chart Shows

This chart breaks down 's total annual return into two components: price return (gains or losses from stock price movement) and dividend return (income received from dividend payments). Together, they represent the total return an investor would have earned in each calendar year.

Price Return

Price return measures the percentage change in 's stock price from January 1st to December 31st of each year. Positive bars indicate the stock appreciated; negative bars show a decline. This is the component most investors focus on, but it tells only part of the story — especially for dividend-paying stocks.

Dividend Return

Dividend return represents the income generated from dividends paid during the year, expressed as a percentage of the starting stock price. While it may seem small in any single year (typically 1–4 % for established companies), dividends compound significantly over decades and have historically contributed roughly 40 % of total stock market returns.

What to Look For

Examine how many years showed positive vs. negative returns to gauge consistency. A stock with mostly positive years and small drawdowns suggests lower risk. Also compare 's annual returns to a benchmark index — consistently outperforming the market is a hallmark of a strong investment. Pay attention to the worst years: understanding downside risk is just as important as chasing upside potential.

Iroc Co shares outstanding

The number of shares of Iroc Co was 30.44 M in 2025. This indicates how many shares Iroc Co is divided into. Since shareholders are the owners of a company, each share represents a small portion of the company's ownership.
  • 3 Years

  • 5 Years

  • 10 Years

  • 25 Years

  • Max

Number of stocks
Details
Date
Number of stocks
Jan 1, 2018
25.76 M Stocks
Jan 1, 2019
25.76 M Stocks
Jan 1, 2020
25.76 M Stocks
Jan 1, 2021
25.76 M Stocks
Jan 1, 2022
25.76 M Stocks
Jan 1, 2023
25.76 M Stocks
Jan 1, 2024
30.44 M Stocks
Jan 1, 2025
30.44 M Stocks

Iroc Co stock splits

In Iroc Co's history, there have been no stock splits.

Iroc Co Dividend History

1 years of dividend payments

YearAnnual DividendYoY ChangePayments
20220.20TWD

Iroc Co dividend payout ratio

In 2025, Iroc Co had a payout ratio of 0.00%. The payout ratio indicates the percentage of the company's profits that Iroc Co distributes as dividends.
  • 3 Years

  • 5 Years

  • 10 Years

  • 25 Years

  • Max

Payout ratio
Details
Date
Payout ratio
Jan 1, 2018
0.00 %
Jan 1, 2019
0.00 %
Jan 1, 2020
0.00 %
Jan 1, 2021
0.00 %
Jan 1, 2022
-4.68 %
Jan 1, 2023
0.00 %
Jan 1, 2024
0.00 %
Jan 1, 2025
0.00 %
Price targets and forecasts for Iroc Co are not yet available.

Iroc Co shareholder structure

% Name
35.87250%
ADATA Technology Co Ltd
ADATA Technology Co Ltd
7.82250%
Zhao Long Investment Corporation
Zhao Long Investment Corporation
7.34000%
Liwanli Innovation Co Ltd
Liwanli Innovation Co Ltd
4.72750%
Ying Yi Investment Corp.
Ying Yi Investment Corp.
3.81250%
YuanFang Investment Co., Ltd.
YuanFang Investment Co., Ltd.
2.99250%
Yi Ying Investment Corp.
Yi Ying Investment Corp.

Iroc Co Beneficial Ownership Filings (SEC 13D/G)

Free Float
81.3%
Float Shares
-
Shares Outstanding
-

Iroc Co Executives and Management Board

13 members · 14 % women

Management

ZL

Mr. Zheyu Li

Chief Financial Officer

YL

Yonghua Liu

Deputy General Manager · since 2005

YC

Yijing Chen

Head of Accounting

LH

Liyou Hong

Head of Finance, Corporate Governance Officer

Board of Directors

KC

Mr. K.C. Chou

Chairman of the Board · since 2016

LC

Mr. Li-Pai Chen

Vice Chairman of the Board · since 2016

QH

Qicheng Huang

General Manager, Director · since 2023

JD

Jianxing Ding

Director

WL

Ms. Wanjing Lin

Director

XX

Xingrui Xu

Director

Frequently asked questions about Iroc Co

Converted at the current exchange rate, the Iroc Co share trades at 4.30 EUR (159.50 TWD).

No history available for Iroc Co.

The revenue cannot currently be calculated for Iroc Co.

The profit cannot currently be calculated for Iroc Co.

The P/E ratio cannot be calculated for Iroc Co at the moment.

The P/S cannot be calculated for Iroc Co currently.

The Eulerpool Quality Score for Iroc Co is 4/10.

The ISIN of Iroc Co is TW0003555009. The ISIN (International Securities Identification Number) is a globally unique identifier for securities.

The ticker of Iroc Co is 3555.TWO. The ticker symbol is used to trade Iroc Co shares on the stock exchange.

The current dividend yield of Iroc Co is 0.13 %.

Iroc Co paid dividends every year for the past 0 years.

Iroc Co is assigned to the 'Information technology' sector.

To receive the latest dividend of Iroc Co from amounting to 0.2 TWD, you needed to have the stock in your portfolio before the ex-date on .

The last dividend was paid out on .

The dividends of Iroc Co are distributed in TWD.

All fundamentals and in-depth analysis of Iroc Co

Our stock analysis for Iroc Co stock includes important financial indicators such as revenue, profit, P/E ratio, P/S ratio, EBIT, as well as information on dividends. We also assess aspects such as stocks, market capitalization, debt, equity, and liabilities of Iroc Co. If you are looking for more detailed information on these topics, we offer comprehensive analyses on our subpages.