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Updated 1m ago
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Surfilter Network Technology Co., Ltd.SZSE:300311 Stock Report

Market Cap CN¥3.9b
Updated 1m ago
Share Price
n/a
1Y17.8%
7D1.8%
1D2.5%
Portfolio Value
​
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Surfilter Network Technology Co., Ltd.

SZSE:300311 Stock Report

Market Cap: CN¥3.9b

  • Company Overview
    • Valuation
    • Future Growth
    • Past Performance
    • Financial Health
    • Dividend
  • Management
  • Ownership
  • Other Information
  • Stock Community

Surfilter Network Technology (300311) Stock Overview

Provides network information security solutions in China and internationally. More details

300311 fundamental analysis
Snowflake Score
Valuation0/6
Future Growth0/6
Past Performance2/6
Financial Health5/6
Dividends0/6

Rewards

Became profitable this year

Risk Analysis

Volatile share price over the past 3 months compared to the CN market

Large one-off items impacting financial results


300311 Community Fair Values

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CN¥
Current Price
CN¥5.75171.2% overvalued intrinsic discount
%/yr
Decrease
Increase
PastFuture-234m1b2016201920222025202620282031Revenue CN¥274.9mEarnings CN¥24.0m
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Surfilter Network Technology Co., Ltd. Competitors

Beijing Infosec TechnologiesLtd

Symbol: SHSE:688201
Market cap: CN¥2.4b

Shanghai Amarsoft Information & TechnologyLtd

Symbol: SZSE:300380
Market cap: CN¥4.6b

Zhengzhou Jiean Hi-TechLtd

Symbol: SZSE:300845
Market cap: CN¥2.8b

Nanjing Sciyon Wisdom Technology Group

Symbol: SZSE:002380
Market cap: CN¥6.4b

Price History & Performance

Summary of share price highs, lows and changes for Surfilter Network Technology
Historical stock prices
Current Share PriceCN¥5.75
52 Week HighCN¥7.16
52 Week LowCN¥4.19
Beta0.38
1 Month Change4.17%
3 Month Change11.87%
1 Year Change17.83%
3 Year Change-2.21%
5 Year Change-23.74%
Change since IPO161.83%

Recent News & Updates

Recent updates

Analysis Article • Mar 25

Does Surfilter Network Technology (SZSE:300311) Have A Healthy Balance Sheet?

Howard Marks put it nicely when he said that, rather than worrying about share price volatility, 'The possibility of...
Analysis Article • Feb 17

What Surfilter Network Technology Co., Ltd.'s (SZSE:300311) 31% Share Price Gain Is Not Telling You

Surfilter Network Technology Co., Ltd. ( SZSE:300311 ) shareholders would be excited to see that the share price has...
Analysis Article • Jan 03

Surfilter Network Technology Co., Ltd. (SZSE:300311) May Have Run Too Fast Too Soon With Recent 28% Price Plummet

The Surfilter Network Technology Co., Ltd. ( SZSE:300311 ) share price has softened a substantial 28% over the previous...
Analysis Article • Dec 17

Health Check: How Prudently Does Surfilter Network Technology (SZSE:300311) Use Debt?

Legendary fund manager Li Lu (who Charlie Munger backed) once said, 'The biggest investment risk is not the volatility...
Analysis Article • Oct 06

Subdued Growth No Barrier To Surfilter Network Technology Co., Ltd. (SZSE:300311) With Shares Advancing 68%

Surfilter Network Technology Co., Ltd. ( SZSE:300311 ) shares have had a really impressive month, gaining 68% after a...
Analysis Article • Aug 21

Surfilter Network Technology Co., Ltd. (SZSE:300311) Shares May Have Slumped 29% But Getting In Cheap Is Still Unlikely

The Surfilter Network Technology Co., Ltd. ( SZSE:300311 ) share price has fared very poorly over the last month...
Analysis Article • Jul 05

What Surfilter Network Technology Co., Ltd.'s (SZSE:300311) 32% Share Price Gain Is Not Telling You

Surfilter Network Technology Co., Ltd. ( SZSE:300311 ) shareholders are no doubt pleased to see that the share price...
Analysis Article • Apr 21

Surfilter Network Technology Co., Ltd.'s (SZSE:300311) Popularity With Investors Under Threat As Stock Sinks 25%

The Surfilter Network Technology Co., Ltd. ( SZSE:300311 ) share price has fared very poorly over the last month...
Analysis Article • Mar 06

Surfilter Network Technology Co., Ltd. (SZSE:300311) Stock Rockets 38% As Investors Are Less Pessimistic Than Expected

Those holding Surfilter Network Technology Co., Ltd. ( SZSE:300311 ) shares would be relieved that the share price has...
Analysis Article • Feb 28

Is Surfilter Network Technology (SZSE:300311) Using Debt Sensibly?

The external fund manager backed by Berkshire Hathaway's Charlie Munger, Li Lu, makes no bones about it when he says...

Shareholder Returns

300311CN SoftwareCN Market
7D1.8%2.4%1.7%
1Y17.8%-23.5%0.9%

Return vs Industry: 300311 exceeded the CN Software industry which returned -23.5% over the past year.

Return vs Market: 300311 exceeded the CN Market which returned 0.9% over the past year.

Price Volatility

Is 300311's price volatile compared to industry and market?
300311 volatility
300311 Average Weekly Movement9.5%
Software Industry Average Movement7.1%
Market Average Movement7.0%
10% most volatile stocks in CN Market11.8%
10% least volatile stocks in CN Market4.1%

Stable Share Price: 300311's share price has been volatile over the past 3 months compared to the CN market.

Volatility Over Time: 300311's weekly volatility (9%) has been stable over the past year, but is still higher than 75% of CN stocks.

About the Company

FoundedEmployeesCEOWebsite
2000863Zhijie Shenwww.1218.com.cn

Surfilter Network Technology Co., Ltd. provides network information security solutions in China and internationally. The company offers network security protection product, such as zero trust, data, and border security; security perception; secure access; and security audit. It also provides government regulated product, including critical infrastructure security supervision, important information system security supervision, wireless internet information security system, internet financial fraud prevention and combat, and internet content security supervision, as well as prevent and crack down on the black industry on the internet.

Surfilter Network Technology Co., Ltd. Fundamentals Summary

How do Surfilter Network Technology's earnings and revenue compare to its market cap?
300311 fundamental statistics
Market capCN¥3.87b
Earnings (TTM)CN¥44.32m
Revenue (TTM)CN¥507.32m
87.4x
P/E Ratio
7.6x
P/S Ratio

Is 300311 overvalued?

See Fair Value and valuation analysis

Earnings & Revenue

Key profitability statistics from the latest earnings report (TTM)
300311 income statement (TTM)
RevenueCN¥507.32m
Cost of RevenueCN¥158.64m
Gross ProfitCN¥348.69m
Other ExpensesCN¥304.37m
EarningsCN¥44.32m

Last Reported Earnings

Jun 30, 2026

Next Earnings Date

n/a

Earnings per share (EPS)0.066
Gross Margin68.73%
Net Profit Margin8.74%
Debt/Equity Ratio4.5%

How did 300311 perform over the long term?

See historical performance and comparison

Company Analysis and Financial Data Status

DataLast Updated (UTC time)
Company Analysis2026/09/20 14:37
End of Day Share Price 2026/09/18 00:00
Earnings2026/06/30
Annual Earnings2025/12/31

Data Sources

The data used in our company analysis is from S&P Global Market Intelligence LLC. The following data is used in our analysis model to generate this report. Data is normalised which can introduce a delay from the source being available.

PackageDataTimeframeExample US Source *
Company Financials10 years
  • Income statement
  • Cash flow statement
  • Balance sheet
  • SEC Form 10-K
  • SEC Form 10-Q
Analyst Consensus Estimates+3 years
  • Forecast financials
  • Analyst price targets
  • Analyst Research Reports
  • Blue Matrix
Market Prices30 years
  • Stock prices
  • Dividends, Splits and Actions
  • ICE Market Data
  • SEC Form S-1
Ownership10 years
  • Top shareholders
  • Insider trading
  • SEC Form 4
  • SEC Form 13D
Management10 years
  • Leadership team
  • Board of directors
  • SEC Form 10-K
  • SEC Form DEF 14A
Key Developments10 years
  • Company announcements
  • SEC Form 8-K

* Example for US securities, for non-US equivalent regulatory forms and sources are used.

Unless specified all financial data is based on a yearly period but updated quarterly. This is known as Trailing Twelve Month (TTM) or Last Twelve Month (LTM) Data. Learn more.

Analysis Model and Snowflake

Details of the analysis model used to generate this report is available on our Github page, we also have guides on how to use our reports and tutorials on Youtube.

Learn about the who designed and built the Simply Wall St analysis model.

Industry and Sector Metrics

Our industry and section metrics are calculated every 6 hours by Simply Wall St, details of our process are available on Github.

Analyst Sources

Surfilter Network Technology Co., Ltd. is covered by 2 analysts. 0 of those analysts submitted the estimates of revenue or earnings used as inputs to our report. Analysts submissions are updated throughout the day.

AnalystInstitution
Bing ZhangHuatai Research
Bing ZhangPing An Securities Co. Ltd.

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