To buy shares in Corero Network Security Plc you will need a FCA regulated UK stock broker like AJ Bell, Hargreaves Lansdown or interactive investor where it currently costs 10p to buy one share in Corero Network Security Plc (as of 16:35 23-Sep-2025). Which is a change of 0.5p or 5.26% from the last closing price of 9.5p.

How To Buy Corero Network Security Plc Shares

It may seem complicated to buy shares for the first time, but it’s actually very easy. Follow these simple steps to buy shares in Corero Network Security Plc:

Pick a stock broker (jump down to compare the best brokers for buying Corero Network Security Plc shares)
Deposit funds (via bank transfer or debit card)
Search for the company share symbol: (LON:CNS)
Choose the number of shares you want to buy (1 share currently costs 10p)
Click buy (you can either trade immediately at “market” or set a “limit” to buy the shares cheaper if you think the price will go down)
Track the performance of your Corero Network Security Plc shares in your account (this will show your profit and loss)

Corero Network Security Plc is currently worth £51,042,020 based on the last closing price of 9.5p with 175,172 shares traded.
The most recent Corero Network Security Plc daily high has been 10p and daily low 9.35p.
The Corero Network Security Plc share price 52 week high has been 29.3p and the 52 week low 8.5p.

Compare Brokers For Buying Corero Network Security Plc Stock

You can buy these UK shares in a general investment account, and stocks and shares ISA where your profits are tax-free. Or if you are investing for your retirement, you can buy them in a SIPP, where profits are also tax-free but you cannot access the money until you reach 55.

We have ranked, compared and reviewed some of the best share-dealing platforms and accounts in the UK that are regulated by the Financial Conduct Authority (FCA). The main things to compare when choosing a share dealing account are the costs of buying and selling shares (trading fees) and how much it will cost to keep those shares on your account. You should also compare account types so you have the option to deal shares in a tax-efficient ISA, SIPP or for your children.

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Name	GMG Rating	Customer Reviews	Annual Fees	Dealing Commission	CTA	Feature	Expand
Interactive Brokers: Best for international share dealing	GMG Rating (4.3)	Customer Reviews 4.4 (Based on 934 reviews)	Annual Fees £0	Dealing Commission £3	See Offers Capital at risk Interactive Brokers Reviews	Features: DIY FCA Regulated FSCS Protected	Our Review Interactive Brokers Share Dealing Review Provider: Interactive Brokers Share Dealing Verdict: Interactive Brokers is an excellent account for sophisticated share dealers who want to manage their own portfolio with complex order types actively and need access to a wider range of investment products like derivatives, options, and futures. They also offer fractional share dealing if you only want to start trading a small amount. Capital at risk. Visit Interactive Brokers Summary One of the most advanced share dealing platforms for beginners and professional investors. Investments: Shares, ETFs, funds & bonds Minimum deposit: £500 Account types: GIA, ISA, SIPP, CFD Share dealing account charge: £0 Share dealing fee: 0.05% Fees: Interactive Brokers does not charge share dealing custody fees and minimum share dealing commissions are £1 in the UK or 0.05% of the deal size. Pros Excellent market coverage Advanced investment platform Low-cost share dealing of 0.05% or £1 minimum* Cons Customer service mainly automated No share dealing SIPP account Pricing (4.5) Market Access (4.5) Online Platform (4.5) Customer Service (3.5) Research & Analysis (4.5) Overall 4.3
Interactive Investor: Best fixed-fee share dealing account	GMG Rating (4.3)	Customer Reviews 4.3 (Based on 1,119 reviews)	Annual Fees £59.88	Dealing Commission £3.99	See Offers Capital at risk interactive investor Reviews	Features: DIY Managed FCA Regulated FSCS Protected	Our Review Interactive Investor Share Dealing Review Provider: Interactive Investor Share Dealing Verdict: Interactive Investor is a low-cost share dealing platform that offers investors access to over 40,000 shares. II won the 2021 and 2023 Good Money Guide award for Best Investment Account. Capital at risk. Visit Interactive Investor Summary Interactive Investor is a great choice for anyone who wants to buy and sell shares on a regular basis and has a large portfolio. Investments: Shares, ETFs, bonds & funds Minimum deposit: £1 Account types: GIA, ISA, SIPP, JISA Share dealing account charge: £4.99 per month Share dealing fee: £3.99 – £5.99 Dealing Fees: Interactive Investor share dealing commissions are a free trade every month, then UK Shares and Funds, US Shares charged £7.99 or upgrade to a £19.99 “Super Investor” account 2 free monthly trades and deal for £3.99. Regular investing is free. Special Offers: One free trade per month – One buy or sell order is free every month, after that, the cost is between £3.99 and £5.99 depending on what plan you are on. Free investing for your friends and family – You can give up to five people a free investment account subscription with Interactive Investor’s Friends and Family plan. You pay a single extra fee of £5 a month, and their monthly cost is zero. Each member can invest up to £30,000 in an ISA or a general investing account with free regular investing and no account fees. However, they will still pay normal dealing commissions when they buy and sell investments. Get £200 when you refer a friend to Interactive Investor – Recommend a friend or family member to ii and get a £200 reward. Your friend will get their first year’s service plan for free – saving £120. To qualify, your friend must transfer or fund their account with at least £10,000 in combined cash/investments. However, your friend will not receive the usually monthly free trade. Pros Low share dealing commission £1 minimum deposit makes it easy to get started One free share deal per month Joint account options Cons Fixed-fee expensive for very small share dealing accounts below £1,000 Pricing (4) Market Access (4.5) Online Platform (4.5) Customer Service (4.5) Research & Analysis (4) Overall 4.3
AJ Bell: Best low-cost share dealing platform	GMG Rating (4.2)	Customer Reviews 4.2 (Based on 1,094 reviews)	Annual Fees 0% – 0.25%	Dealing Commission £3.50 – £5	See Offers Capital at risk AJ Bell Reviews	Features: DIY FCA Regulated FSCS Protected	Our Review AJ Bell Share Dealing Review Provider: AJ Bell Share Dealing Verdict: AJ Bell is a low-cost online investing platform and is the cheapest share dealing platform for buying and selling shares for the UK do-it-yourself (DIY) investor. They also offer plenty of investment ideas, including investment guides and equity research. Capital at risk. Visit AJ Bell Summary A great choice to deal shares with low costs in a variety of investment accounts. Investments: Shares, ETFs, bonds & funds Minimum deposit: £500 Account types: GIA, ISA, SIPP, JISA, JISA, JSIPP Share dealing account charge: 0.25% Share dealing fee: £3.50 – £5 Fees: AJ Bell share dealing account fees are capped at £3.50 a month. Dealing costs are £1.50 for funds and £5 for shares but drop to £3.50 when there were 10 or more online share deals in the previous month. Special Offers: Recommend a friend, and you’ll both get £100 gift vouchers – When you recommend a friend to AJ Bell that invests more than £10,000 in a SIPP or ISA, you and your friend can get One4All gift vouchers worth £100. Switch your share dealing account and receive up to £500 to cover exit fees – If you transfer your share dealing general investment account valued at more than £20,000 to AJ Bell they will help cover any exit fees charged by your current provider. They will cover £35 per investment moved and up to £100 for general exit fees, up to an overall maximum of £500 per person. Free subscription to Shares Magazine worth £220 Get a free subscription to Shares (worth over £220 per year) by maintaining a balance of £4,000 or more across your AJ Bell investing accounts. Pros Lots of share dealing investment options Low share dealing account fees capped at £3.50 a month for shares Lots of share dealing account types Cons High phone share dealing charges Pricing (4.5) Market Access (4) Online Platform (4) Customer Service (4) Research & Analysis (4.5) Overall 4.2
Hargreaves Lansdown: Best share dealing account for DIY investors	GMG Rating (4.9)	Customer Reviews 3.8 (Based on 1,759 reviews)	Annual Fees 0% – 0.45%	Dealing Commission £5.95 – £11.95	See Offers Capital at risk Hargreaves Lansdown Reviews	Features: DIY FCA Regulated FSCS Protected	Our Review Expert Review Account: Hargreaves Lansdown Share Dealing Description: Hargreaves Lansdown offers access to the widest selection of stocks for share dealing accounts in the UK. The platform also has one of the best research portals for analysing stocks. Capital at risk. Visit Hargreaves Lansdown Is it expensive to buy and sell shares on Hargreaves Lansdown? Hargreaves Lansdown is not as expensive as it used to be as there is no account charge for holding shares in a general investment account and a max of £3.75 in a stocks and shares ISA. HL does still cost more than competitors like AJ Bell and Interactive Brokers to buy and sell shares, but the account running costs can be lower because of the monthly cap. HL won the Best Stock Broker in our 2024, 2022 awards, and in 2021, it won Best Full-service Stockbroker for their all-round approach to customer service.. Another added bonus of dealing shares through HL is that their clients benefit from price improvements for best execution. HL say they reach out to multiple brokers to get the best prices for a trade and clients can make a saving of £18 per trade on average. This is particularly relevant if you are dealing with cap UK shares, which is where Hargreaves Lansdown excels. Overall, Hargreaves Lansdown is an excellent choice for most types of share dealing on UK and international markets. Pros Excellent stock coverage No share dealing account fees Established stock broker Cons Relatively high dealing charge for infrequent share dealing Pricing (4.5) Market Access (5) App & Platform (5) Customer Service (5) Research & Analysis (5) Overall 4.9 Visit HL HL Reviews
Saxo: Best for experienced and professional share dealing	GMG Rating (4.3)	Customer Reviews 3.6 (Based on 73 reviews)	Annual Fees 0.4% – 0.08%	Dealing Commission £1 – 0.08%	See Offers Capital at risk Saxo Reviews	Features: DIY FCA Regulated FSCS Protected	Our Review Saxo Share Dealing Review: Lower fees and professional grade tech Account: Saxo Share Dealing Description: Saxo’s platform has share dealing on more than 50 stock exchanges around the world with 22,000 shares available for investors. Making it one of the most diverse investment platforms for share dealing in the UK. Its forte is on the trading side for traders that need direct market access and are more price-sensitive to bid/offer spreads. Capital at risk. Visit Saxo Is Saxo any good for share dealing? Yes, you can deal shares directly on exchange with Saxo. In fact, Saxo is one of the best DMA brokers for trading shares inside the bid/offer price as you can place your orders directly on the order book. Saxo’s platform has share dealing on more than 50 stock exchanges around the world with 22,000 shares available for investors. Making it one of the most diverse investment platforms for share dealing in the UK. Its forte is on the trading side for traders that need direct market access and are more price-sensitive to bid/offer spreads. Saxo is a good share dealing platform for sophisticated and advanced investors who also need direct access to capital markets. Fees: Saxo Markets charges a share dealing commission based on a percentage of transaction size. They are very competitive though, and UK share dealing commission starts at 0.1% (£100 if you buy £100,000 worth of stock) and drops to 0.05% for more active traders. As Saxo is a prime broker with a retail and institutional client base, they are one of the best share dealing platforms for larger customers. However, there are some downsides. Firstly they do not offer acesss to smaller cap shares on their trading platform like brokers Spreadex and IG, who have a much braoder range of shares to trade online. Secondly, you cannot trade shares as financial spread bets (where profits are free of capital gains tax). Finally, the cost of dealing shares with Saxo is higher than with a broker like Interactive Brokers. But Saxo wins hands down when it comes to customer services, research and analysis. Pros Wide market access Excellent platform Low commissions of 0.10% or £8* Cons More suited to high-risk share dealing Pricing (4.5) Market Access (4.5) Online Platform (4.5) Customer Service (4) Research & Analysis (4) Overall 4.3 Visit Saxo Saxo Reviews
IG: Best for a mixture of complex and simple share dealing	GMG Rating (4.4)	Customer Reviews 3.9 (Based on 678 reviews)	Annual Fees £0 – £96	Dealing Commission £0	See Offers Capital at risk IG Reviews	Features: DIY Managed FCA Regulated FSCS Protected	Our Review IG Share Dealing Expert Review Account: IG Share Dealing Description: With IG you can deal in over 13,000+ shares, funds and investment trusts with zero commission on US shares, and just £3 on UK shares1, with a foreign exchange fee of just 0.5%. You can also deal on a limited amount US shares while the market is closed. Capital at risk. Visit IG Is an IG share dealing account any good? An excellent share-dealing platform for those who want to deal shares regularly in the short and long term. With IG you can deal in over 13,000+ shares, funds and investment trusts with zero commission on US & UK shares, and just £3 on UK shares, with a foreign exchange fee of just 0.5%. You can also deal on a limited amount US shares while the market is closed. You also get access to a huge range of UK small-cap shares, where you can request quotes from marketmakers via RSPs. This is something that is not available from other trading/investing platforms like CMC or Trading 212. An IG share dealing account is different from a spread betting or CFD trading account in that you actually own physical shares as opposed to trading derivatives. The ability to deal in shares with IG means that you can invest in companies for the long term alongside your short-term higher-risk speculation. An excellent share-dealing platform for those who want to deal in shares regularly in the short and long term. Pros Low £8 share dealing fee* UK & international shares Low account fee Cons Derivatives products Pricing (4.5) Market Access (4.5) Online Platform (4.5) Customer Service (4) Research & Analysis (4.5) Overall 4.4 Visit IG IG Reviews

Is Now A Good Time To Buy Corero Network Security Plc Stock?

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Corero Network Security Plc’s EPS (earnings per share) are n/a. A high EPS indicates strong profitability but may already be priced in, while a low EPS could signal weak earnings or a turnaround opportunity, requiring industry comparison.
Corero Network Security Plc’s PE (price earnings ratio) is 138.46. A low PE ratio may suggest undervaluation but could also indicate slow growth or risk, whereas a high PE ratio reflects high growth expectations but may signal overvaluation, necessitating a check on earnings sustainability.

The below Corero Network Security Plc share price analysis and market data includes key financials, earnings estimates, peer performance, dividends, news and a company profile that will give you an indication as to whether this stock is a buy, sell or hold.

How To Buy Corero Network Security Plc Shares