QSI Co

QSI Co EV/EBIT

The EV/EBIT (Enterprise Value to EBIT) of QSI Co (066310.KQ) as of Oct 16, 2026 is 306.43. In the previous year, EV/EBIT (Enterprise Value to EBIT) was 76.02 — a change of 303.11% (higher).

EV/EBIT

306.43

YoY

303.11%

Last updated:

EV/EBIT (Enterprise Value to EBIT) of QSI Co is 2025 306.43 . EV/EBIT (Enterprise Value to EBIT) of QSI Co was 2024 76.02 . It decreases by 303.11% higher compared to the previous year.

The QSI Co EV/EBIT history

  • 3 Years

  • 10 Years

  • 25 Years

  • Max

EV/EBIT
Date
EV/EBIT
Jan 1, 2018
-62.19 KRW
Jan 1, 2019
-399.24 KRW
Jan 1, 2020
235.33 KRW
Jan 1, 2021
33.29 KRW
Jan 1, 2022
49.60 KRW
Jan 1, 2023
-21.22 KRW
Jan 1, 2024
76.02 KRW
Jan 1, 2025
306.43 KRW
The QSI Co EV/EBIT history
YEAREV/EBITYoY
306.43+303.11%
76.02-458.20%
-21.22-142.78%
49.60+49.02%
33.29-85.86%
235.33-158.94%
-399.24+541.95%
-62.19-171.52%
86.96-13.65%
100.70-55.00%
223.77+764.83%
25.87+97.37%
13.11-31.25%
19.07+167.84%
7.12+22.55%
5.81-97.59%
241.43+6,478.47%
3.67-95.50%
81.48+315.93%
19.59—

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QSI Co Valuation

Details

Historical Valuation Multiples

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Price-to-Earnings Ratio (P/E)

The P/E ratio divides QSI Co's share price by its earnings per share. It tells you how many years of current earnings you are "paying for" when you buy the stock. A P/E of 20 means you pay $20 for every $1 of annual earnings. The S&P 500 historically trades at an average P/E of roughly 15–17. A P/E significantly above that may signal high growth expectations; one below may indicate undervaluation — or declining business quality.

Price-to-Sales Ratio (P/S)

The P/S ratio divides market capitalization by total revenue. Unlike the P/E ratio, it works even for companies that are not yet profitable, making it essential for evaluating high-growth firms. A P/S below 1.0 may indicate undervaluation, while ratios above 10 are typically reserved for fast-growing tech or SaaS companies with high expected future margins.

Price-to-EBIT Ratio

This ratio relates QSI Co's market price to its operating earnings, excluding the effects of debt structure and tax jurisdiction. It is particularly useful for comparing companies across different countries or with different levels of leverage, because it focuses purely on operational profitability. Lower values suggest cheaper operational earnings.

How to Use This Chart

This chart plots QSI Co's valuation multiples over time. Compare the current P/E, P/S, and P/EBIT to their own historical averages — if the current ratio is well below the multi-year average, the stock may be relatively cheap compared to its own track record. Combine this with industry comparisons: a P/E that looks high in absolute terms may be justified if QSI Co grows earnings faster than its peers.

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

EV/EBIT (Enterprise Value to EBIT) of QSI Co is 306.43 in 2025.

EV/EBIT (Enterprise Value to EBIT) of QSI Co changed from 76.02 to 306.43, representing a 303.11% change. The value is higher than the previous year.

On Eulerpool you can find the complete historical development of EV/EBIT (Enterprise Value to EBIT) QSI Co since 2006 – with annual values, charts, and detailed analysis.

The EV/EBIT ratio measures a company's enterprise value relative to its operating earnings. It accounts for debt, making it useful for comparing companies with different capital structures.

EV/EBIT = Enterprise Value / Earnings Before Interest and Taxes

To evaluate EV/EBIT (Enterprise Value to EBIT)'s, it is essential to compare it with peers in the same industry and sector. On Eulerpool, you can find direct industry comparisons for EV/EBIT (Enterprise Value to EBIT).

A 'good' varies by industry and company stage. On Eulerpool, you can compare EV/EBIT (Enterprise Value to EBIT)'s QSI Co with sector peers and the industry average to assess whether it is attractive.

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Valuation — QSI Co

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