QSI Co

QSI Co Operating Cash Flow

The Operating Cash Flow of QSI Co (066310.KQ) as of Oct 19, 2026 is 4.75 B KRW. In the previous year, Operating Cash Flow was 3.23 B KRW — a change of 46.82% (higher).

Operating Cash Flow

4.75 BKRW

YoY

46.82%

Last updated:

Operating Cash Flow of QSI Co is 2025 4.75 B KRW. Operating Cash Flow of QSI Co was 2024 3.23 B KRW. It decreases by 46.82% higher compared to the previous year.

The QSI Co Operating Cash Flow history

  • 3 Years

  • 10 Years

  • 25 Years

  • Max

Operating Cash Flow
Date
Operating Cash Flow
Jan 1, 2018
3.24 B KRW
Jan 1, 2019
2.63 B KRW
Jan 1, 2020
1.21 B KRW
Jan 1, 2021
8.24 B KRW
Jan 1, 2022
5.28 B KRW
Jan 1, 2023
5.47 B KRW
Jan 1, 2024
3.23 B KRW
Jan 1, 2025
4.75 B KRW
The QSI Co Operating Cash Flow history
YEAROperating Cash FlowYoY
4.75 BKRW+46.82%
3.23 BKRW-40.95%
5.47 BKRW+3.59%
5.28 BKRW-35.87%
8.24 BKRW+583.29%
1.21 BKRW-54.07%
2.63 BKRW-18.91%
3.24 BKRW+3.63%
3.12 BKRW+26.41%
2.47 BKRW-31.79%
3.62 BKRW-16.58%
4.34 BKRW—

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QSI Co Stock analysis

What does QSI Co do? QSI Co Ltd, listed on the Korean stock market with ticker 066310.KQ and ISIN KR7066310004, is a company based in Cheonan, South Korea. It operates within the Information Technology sector, specifically in the Semiconductors industry. The company went public on November 24, 2006. QSI Co Ltd manufactures and sells semiconductor laser and optical semiconductor products. Its product portfolio includes laser diodes (LDs) used in various applications such as power tools, laser modules, barcode scanners, laser beam printers, optical pickup units for DVDs and CDs, and other sectors including medical equipment and sensors. The company markets its products under the brand name QSI Laser Diode. It serves both domestic and international markets, with notable clients including Fuji Xerox, Panasonic, Samsung, and Stabila. The company's website is http://www.qsilaser.com, providing further information about its products and services. QSI Co Ltd focuses on the production and distribution of optical semiconductor solutions, targeting a range of industries that require precision optical components. QSI Co is one of the most popular companies on Eulerpool.

Frequently Asked Questions about QSI Co stock

Operating Cash Flow of QSI Co is 4.75 B KRW in 2025.

Operating Cash Flow of QSI Co changed from 3.23 B KRW to 4.75 B KRW, representing a 46.82% change. The value is higher than the previous year.

On Eulerpool you can find the complete historical development of Operating Cash Flow QSI Co since 2006 – with annual values, charts, and detailed analysis.

Operating cash flow measures the cash generated from core business operations. It is a pure measure of a company's ability to generate cash.

Operating Cash Flow's KRW is a key factor for investors. Changes in this metric can signal improving or deteriorating fundamentals, directly impacting the stock price. On Eulerpool, you can track Operating Cash Flow's QSI Co historically and in real time.

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