Glossary · PSX Mechanics
Float
The portion of a company's shares available for public trading, excluding shares held by promoters, directors, or strategic investors. A higher free float generally means better liquidity.
01—What is Float?
The definition — and what it means in practice.
Float, also called free float, is the portion of a listed company’s shares that is realistically available for public trading. It excludes shares held by promoters, directors, and other strategic or long-term holders who are unlikely to trade frequently. Because only free-float shares can regularly change hands in the market, float is a practical measure of how much stock supply is “in circulation” for everyday buyers and sellers.
Float matters because it often influences liquidity, spreads, and day-to-day price movement. When free float is higher, there are typically more shares available to trade, making it easier to enter or exit positions without moving the price much. When free float is low, trading can be thinner and more volatile, and even modest orders may cause sharper moves. It can also affect how representative a stock is in index and market activity.
If a company has 100 shares but insiders hold 70, the free float is 30 shares; those 30 shares mainly decide how easily it trades.
Free Float (%) = (Shares available for public trading ÷ Total shares outstanding) × 100
Exclude promoter/director/strategic holdings from the numerator.
- Free float is the tradable portion of shares, not the total shares a company has issued.
- Higher float generally supports better liquidity and tighter bid–ask spreads.
- Low float can mean thinner volume and larger price moves from smaller orders.
- Float is different from market capitalisation; it is about availability, not size.
02—How float works on the PSX
The Pakistan-specific rules, conventions, and numbers.
On the Pakistan Stock Exchange (PSX), you will encounter float when comparing how easily different shares trade and when looking at market activity lists such as most active by volume. Because only the free-float portion tends to circulate, two companies of similar size can trade very differently if one has far fewer shares available to the public.
Float is also relevant to PSX indices. The KSE-100 is a free-float benchmark and is reviewed semi-annually, so index weightings are tied to free-float availability rather than simply total shares issued. In practice, that means changes in what is considered freely tradable can influence index composition and weightings, which can affect tracking by index-linked products and investor attention.
03—Common misconceptions
Where investors most often get this wrong.
A company with a big market capitalisation always has a high float.
Market capitalisation reflects total value of all shares. Float depends on how many shares are actually available for trading after excluding strategic or insider holdings.
Low float means the share is safer because fewer people can sell.
Low float can reduce liquidity and increase volatility. Prices may move sharply because small trades can have a bigger impact when supply is limited.
Free float is the same as daily trading volume.
Free float is the pool of shares that could trade. Volume is how many shares actually traded over a period; a high float can still have low volume.
04—Using float on BSL
Where this term shows up across the platform — with live data.
- Check trading activity and liquidity signals on the Market page.
- Filter and compare shares where liquidity is easier to assess using the Stock Screener.
- See which companies are in the free-float benchmark via the KSE-100 Index page.
- Review actively traded names on the Most Active list.
05—Frequently asked questions
What investors ask about float on the PSX.
Frequently Asked Questions
Free float on the PSX means the portion of a company’s shares that is available for public trading, excluding shares held by promoters, directors, and strategic investors. It is used as a practical gauge of how much stock can actually change hands in the market.
Liquidity depends on how many shares are available and willing to trade. A higher free float generally means more potential sellers and buyers at different prices, which can make it easier to execute orders with less price impact and often a tighter bid–ask spread.
Yes. The KSE-100 is described as a free-float benchmark and is reviewed semi-annually. That means index weighting is linked to shares considered freely tradable rather than relying only on total shares outstanding.
It can be. When fewer shares are freely tradable, the order book may be thinner. As a result, even moderate buying or selling can move the price more than it would in a higher-float share.
It can change when ownership structure changes, such as when strategic holders increase or reduce stakes. Corporate actions that alter the number of shares outstanding can also affect the float percentage, depending on who holds the additional or reduced shares.
06—Related terms
Keep building the picture.
The ease with which a security can be bought or sold without significantly affecting its price. High-liquidity stocks have large trading volumes and narrow bid-ask spreads.
The total number of shares traded in a security over a given period. Volume is a key indicator of market activity and the strength behind price movements.
The highest price a buyer is willing to pay for a security. The gap between the bid and ask price is the spread and represents the cost of trading.
The lowest price a seller is willing to accept for a security. Also called the offer price. The difference between the ask and the bid price is called the spread.
The total market value of a company's outstanding shares, calculated by multiplying the share price by the number of shares in circulation and used to classify companies as large-cap, mid-cap, or small-cap.
The primary benchmark index of the Pakistan Stock Exchange, comprising the 100 largest listed companies by market capitalisation across all sectors. Widely used as a barometer of Pakistan's equity market performance.
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