Free float is the proportion of a company's shares that are available for public trading, excluding shares locked up by founders, governments, strategic investors, and insiders. In Nigeria, accurate free-float data is notoriously difficult to obtain, and global providers like Bloomberg frequently get it wrong for small and mid-cap stocks on the NGX.
Free float tells you how much of a company's stock actually trades. If a company has 10 billion shares outstanding but the founder holds 70%, the government holds 10%, and institutional lock-ups account for another 5%, only 15% is freely available. That's 1.5 billion shares, not 10 billion. The difference is enormous for anyone trying to buy or sell a meaningful position.
Every major global index, from the S&P 500 to the MSCI Emerging Markets, uses free-float adjusted market capitalisation for weighting. This prevents a company with a huge total market cap but tiny public float from dominating the index. Nigeria's ASI doesn't make this adjustment. A company where 90% of shares are held by a single family gets the same index weight as one where 90% of shares trade freely.
For institutional investors, free float determines whether a stock is investable at all. If daily turnover is thin because most shares are locked up, you can't build a position without moving the price against yourself. Low free-float stocks in Nigeria frequently show extreme volatility for this reason; a small order moves the market because there simply aren't enough shares circulating.
Getting accurate free-float data for Nigerian stocks is harder than it should be. Global data providers like Bloomberg estimate free float using publicly available shareholding disclosures, annual reports, and regulatory filings. For large-cap, widely followed stocks like Dangote Cement or MTN Nigeria, these estimates are reasonably accurate. For small and mid-caps, they're often wrong.
The problem is structural. Nigerian companies aren't always timely or detailed in their shareholding disclosures. Some annual reports list only the top 10 shareholders without breaking down the categories of the remaining holders. Others lump "other Nigerian individuals" and "other Nigerian corporates" into a single line. Bloomberg's automated extraction pipeline can't parse what isn't disclosed.
We've seen cases where Bloomberg reports 30% free float for a company that actually has 60% freely trading, and vice versa. For small caps with infrequent filings, the data can be years out of date. MSCI and FTSE Russell have their own proprietary methodologies, but they face the same underlying data constraint: you can't calculate what companies don't disclose.
VENOBLE INSIGHT
VCORE tracks verified free-float data for 155 Nigerian stocks, cross-referenced against annual reports, SEC filings, and shareholder registers. For the VNG-EQB (Venoble Nigeria Equity Broad Index), a minimum 15% verified free float is required for inclusion, and free-float market capitalisation determines each constituent's weight. The verification process regularly turns up discrepancies with Bloomberg data, particularly for stocks with market capitalisations below N100 billion.
In March 2026, the NGX and SEC announced a review of existing free-float requirements for listed companies. The current rules require large companies to make at least 20% of their shares available for public trading, or N40 billion worth of shares, whichever is applicable. Growth Board companies need 15%.
The review is examining whether these thresholds are still appropriate and, more importantly, whether the exchange has accurate free-float data for all listed companies. There's a growing recognition that sloppy free-float data hurts Nigeria's chances of re-inclusion in FTSE Russell and MSCI emerging market indices, which would bring significant foreign capital inflows. FTSE Russell currently has Nigeria on its Watch List for potential frontier re-inclusion, and accurate float data is one of the criteria they assess.
This is an area where better data infrastructure could have an outsized impact on the market. If the NGX mandated quarterly float disclosures in a standardised format, the entire index ecosystem would improve overnight.
Free float is the percentage of a company's total shares that are available for trading by the general public. It excludes shares held by founders, governments, strategic partners, directors, and anyone else unlikely to sell in normal market conditions. In Nigeria, current listing rules require main board companies to have at least 20% free float (or N40 billion in float value), while Growth Board companies need 15%. Many Nigerian stocks have relatively low free floats compared to developed markets, which contributes to the liquidity challenges the NGX faces.
When free float is low, fewer shares are circulating in the market. This means any buying or selling pressure gets concentrated on a smaller pool of available stock. If a pension fund wants to buy N500 million worth of a company with only 10% free float, they're competing for a tiny fraction of total shares. The price moves sharply. This is why low-float stocks on the NGX often show extreme daily swings that don't reflect any real change in the company's fundamentals. It's supply and demand mechanics acting on a constrained supply. Conversely, high-float stocks like Zenith Bank or GTCO tend to trade more smoothly because there's always someone willing to sell at a reasonable price.
Start with the company's annual report, specifically the shareholding analysis section. This typically breaks down who owns what percentage. Subtract shares held by directors, substantial shareholders (usually 5% or more), government entities, and any shares under lock-up agreements. What's left is the approximate free float. Bloomberg terminals show free-float data, but for Nigerian small and mid-caps, it's often inaccurate. The NGX publishes some float data in its factsheets. For verified, cross-referenced free-float figures, VCORE maintains data on 155 Nigerian stocks validated against multiple primary sources.