Market Cap: What is it and how does it work?
If you’ve been involved in stocks for any amount of time, it’s likely that you’ve come across market caps. In fact, the market caps of some of the biggest companies on Wall Street are over 1 Trillion, with the largest market cap at over 2 Trillion (for contrast, Australia’s GDP is 1.553 trillion USD).
So, that’s a lot of big numbers. But what are market caps and do they reflect the actual valuation of a company?
How is a market cap calculated?
Market capitalisation is the aggregate value of a company’s outstanding shares of stock. It is computed by multiplying the company’s share price by its total number of outstanding shares. The formula is actually pretty simple:
Market cap = current share price × outstanding shares
Basically, this is a way of seeing how much the market is valuing a company by both retail and institutional investors. However, this is a general way of seeing how valuable a company is.
If a stock has a large market cap, this does not necessarily mean that the company is healthy (cash flow or debt), just that it likely dominates in its industry. Likewise, a smaller market cap doesn’t necessarily mean a company is in dire straits. Instead, small market caps can often mean a new player to an existing or newly made industry.
Market cap can be a useful metric for determining how the rest of the market is valuing said company. Valuing a stock by market cap shouldn’t be the only thing you consider though. Instead, research and consider other aspects of a business like cash flow, debt, market share and other industry-appropriate considerations (e.g. does this tech company have the best tech?) can help you determine whether you should invest in a company's stock.
Are cryptocurrency market caps different?
While the core concept remains similar, the highly volatile nature of cryptocurrencies lends a different character to crypto market caps. Traditional market caps are tied to companies with physical assets and revenues, while crypto market caps revolve around digital assets whose values are much more speculative.
The formula is similar to a traditional market cap found in share trading, just adapted for crypto:
Crypto Market Cap = current price per coin × total circulating supply
How are large, mid, and small market cap sizes determined?
You’ll usually find investors categorise companies by market cap, which consists of small-cap, mid-cap, and large-cap. Companies will be classed as one of these three based on a certain market cap such as:
- Small-Cap Companies: Tend to have a market cap of less than $2 billion. They are considered to be more volatile and risky, yet they also have a higher growth potential.
- Mid-Cap Companies: These often sit in the middle with a market cap between $2 billion and $10 billion. This kind of stock usually offers a balance of growth potential and stability.
- Large-Cap Companies: Boast a market cap of more than $10 billion and are often well-established firms with a stable earnings record. The larger the market cap, the more unlikely they are to grow substantially (A growth from 1 to 10 billion is more likely than 1 trillion to 10 trillion).
Categorising by market cap can help you gauge the risk and return profile of a company and where they are on their growth curve.
Ready to get started with investing? Check out some of the providers below or head on over to our share trading hub to compare.
Share account comparisons on Mozo
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Share Investing
Standard
Small trade brokerage
Monthly fee
$0.00$0.00CMC Markets Invest makes it easy to trade with a handy web and mobile platform, competitive pricing and thousands of securities. Buy Australian and US shares from $0 brokerage (T&Cs apply - see website for full details).
Share Investing
CMC Markets Invest makes it easy to trade with a handy web and mobile platform, competitive pricing and thousands of securities. Buy Australian and US shares from $0 brokerage (T&Cs apply - see website for full details).
- Monthly fee
- $0.00
- Monthly fee waiver
- -
- Special offers
- -
- Brokerage details
- $0 for trades up to $1,000. Greater of $11 and 0.1% for trades over $1,000.
- Settle from any bank account
- Settlement account offered
- ANZ Cash Account
- CHESS ownership available
- Share pack
- Independent broker reports
- International markets
- Options
- Warrants
- IPOs
- Live data
- Market depth data
- Real time charting
- Other restrictions
- -
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Share Trading
Small trade brokerage
Monthly fee
$3.00$0.00Trade more than 22,000 shares, ETFs and options across the Australian, US and Hong Kong markets on the moomoo Australia platform. And only pay from A$3 for local CHESS-sponsored trades and US$0.99 for all US trades. Other fees apply. Earn up to 6.8% p.a. introductory rate for 30 days, applicable to up to AU$80,000 on uninvested cash, and get 10 free stocks with eligible deposits (T&Cs apply)
Share Trading
Trade more than 22,000 shares, ETFs and options across the Australian, US and Hong Kong markets on the moomoo Australia platform. And only pay from A$3 for local CHESS-sponsored trades and US$0.99 for all US trades. Other fees apply. Earn up to 6.8% p.a. introductory rate for 30 days, applicable to up to AU$80,000 on uninvested cash, and get 10 free stocks with eligible deposits (T&Cs apply)
- Monthly fee
- $0.00
- Monthly fee waiver
- -
- Special offers
- Ongoing free access to real-time US market data.
- Brokerage details
- ASX trades are 0.03% the transaction amount, minimum $3.00 per order. US trades from $0.99 USD, other fees apply.
- Settle from any bank account
- Settlement account offered
- Customer funds held in segregated trust accounts with HSBC.
- CHESS ownership available
- Share pack
- Independent broker reports
- International markets
- Options
- Warrants
- IPOs
- Live data
- Market depth data
- Real time charting
- Other restrictions
- Additional regulatory pass-through fees apply for US trades. Options are available for US markets only.
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Share Trading
Small trade brokerage
Monthly fee
$7.70$0.00Buy and sell with a low $7.70 flat fee per trade and access to all ASX Shares and ETFs to invest in with GO Markets. Enjoy dedicated local customer support, a regulated Australian company for trading ASX Shares and ETFs. Plus, enjoy $0 Brokerage on your next 15 trades! (T&Cs apply).
Share Trading
Buy and sell with a low $7.70 flat fee per trade and access to all ASX Shares and ETFs to invest in with GO Markets. Enjoy dedicated local customer support, a regulated Australian company for trading ASX Shares and ETFs. Plus, enjoy $0 Brokerage on your next 15 trades! (T&Cs apply).
- Monthly fee
- $0.00
- Monthly fee waiver
- -
- Special offers
- -
- Brokerage details
- $7.70 brokerage for trades under $100,000, then 0.05%.
- Settle from any bank account
- Settlement account offered
- Macquarie Cash Management Account
- CHESS ownership available
- Share pack
- Independent broker reports
- International markets
- Options
- Warrants
- IPOs
- Live data
- Market depth data
- Real time charting
- Other restrictions
- -
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Share Trading
Small trade brokerage
Monthly fee
-$0.005000+ stocks and 19 exchanges all on the eToro app. Invest in ETFs with $0 commission and stocks with just US$2 per trade. Join the world’s leading social trading platform, trusted by 30+ million users worldwide.
Share Trading
5000+ stocks and 19 exchanges all on the eToro app. Invest in ETFs with $0 commission and stocks with just US$2 per trade. Join the world’s leading social trading platform, trusted by 30+ million users worldwide.
- Monthly fee
- $0.00
- Monthly fee waiver
- -
- Special offers
- -
- Brokerage details
- $2 USD brokerage fee for stock trades, 0.5% fee is applied to all funds paid into or taken out of the USD settlement account
- Settle from any bank account
- Settlement account offered
- Customer funds are held in a Trust Account managed by JP Morgan Chase and Co
- CHESS ownership available
- Share pack
- Independent broker reports
- International markets
- Options
- Warrants
- IPOs
- Live data
- Market depth data
- Real time charting
- Other restrictions
- $5 USD withdrawal fee applies and a $10 monthly inactivity fee is charged after 12 months with no login activity.
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Tiger Account
Small trade brokerage
Monthly fee
$2.99$0.00Tiger Brokers is an online broker listed on NASDAQ. It offers access to US, ASX & HK stocks, ETFs and US options trading.
Tiger Account
Tiger Brokers is an online broker listed on NASDAQ. It offers access to US, ASX & HK stocks, ETFs and US options trading.
- Monthly fee
- $0.00
- Monthly fee waiver
- -
- Special offers
- Mozo special offer for new users only: Get 4 free trades (brokerage waived up to 2 USD for US stock trades, up to 3 AUD for AUS stock trades) and no FX fee on exchanges up to AUD 2,000 every month. T&Cs apply – for full details, go to the Tiger Brokers website.
- Brokerage details
- 0.03% of trade value, $2.99 minimum brokerage.
- Settle from any bank account
- Settlement account offered
- no
- CHESS ownership available
- Share pack
- Independent broker reports
- International markets
- Options
- Warrants
- IPOs
- Live data
- Market depth data
- Real time charting
- Other restrictions
- -
Read reviews and learn more about share accounts
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