Primary vs secondary shares: where IPO money actually goes
Some IPOs raise no capital for the company at all. Here's how primary issuance and secondary share sales differ, with real deals from the pipeline.
An IPO that raises nothing for the company
Bamboo Insurance Services filed to list on the NYSE under ticker BMB at a fully diluted valuation of up to roughly $3.24 billion, with 35 million shares priced at $18–20 before the offering was postponed on September 22, 2026. Every one of those shares was a secondary sale. Not a dollar of the roughly $665 million on offer was going to fund Bamboo's insurance business — it was all existing stock changing hands from current owner CVC Capital Partners to new public shareholders. The company's balance sheet would have been untouched either way.
That distinction — primary issuance versus secondary sale — is one of the first things worth checking in any filing, and it's easy to miss because headline IPO size numbers never separate the two by default.
The mechanical difference
A primary share is newly created. The company issues it, sells it to the public, and keeps the cash (minus underwriting fees) to spend on the business — paying down debt, funding growth, building out capacity. New shares dilute existing holders' percentage ownership, but they also add cash to the balance sheet that wasn't there before.
A secondary share is one that already exists. An existing shareholder — a founder, a private equity sponsor, an early venture backer — sells stock they already own directly to new public investors. No new shares are created, so there's no dilution, but the company itself sees none of the proceeds. The trade is purely a transfer of ownership from one investor to another, priced and executed through the IPO mechanism instead of a private sale.
Nigeria's Dangote Petroleum Refinery sits at the other extreme from Bamboo. Its ₦2.1525 trillion (~$1.63 billion) offer on the Nigerian Exchange was structured as a primary offer of 4.1 billion newly issued shares at ₦525 each, with a 15% greenshoe on top — every share sold was new stock, and every naira raised (net of costs) stays with the refinery to fund operations and its planned expansion to 1.4 million barrels per day by 2029.
Most deals split the difference
Pure primary and pure secondary deals are the edge cases; most IPOs in Zorro's pipeline blend the two. Zepto's updated draft filing combines a roughly ₹8,010 crore fresh issue with an additional offer-for-sale tranche. Avaada Electro's filing pairs a ₹1,600 crore fresh issue with a ₹6,000 crore OFS from promoter Avaada Ventures — meaning the large majority of that raise is existing investors cashing out, not new capital for the solar manufacturer. Cult.fit's DRHP mixes a roughly ₹950 crore fresh issue with a secondary offer-for-sale on top.
Other filings sit closer to the pure-secondary end without being 100% there. Advanta Enterprises' roughly $400 million India offering is structured entirely as an offer-for-sale by majority owner UPL and minority holder KKR — about 36 million shares, with none of the proceeds reaching the seed producer itself. Carlsberg India's confidentially filed IPO is described as structured mainly as a secondary sale by parent Carlsberg A/S, letting the Danish brewer monetize part of its Indian subsidiary rather than raising growth capital for it. PhonePe's roughly $1 billion offer-for-sale IPO, before it paused, would have let Walmart, Tiger Global, and Microsoft partially exit without adding a rupee to PhonePe's own balance sheet.
Inspire Brands sits firmly on the primary side: its confidential filing targets up to $2 billion in proceeds specifically earmarked to pay down debt at the Dunkin' and Arby's parent, which only works if the company actually collects that cash itself.
What it tells you before the stock trades
The split matters because it changes what the IPO is actually a referendum on. A heavily primary deal is a bet on what the company will do with fresh capital — whether that's Dangote's refinery expansion or Inspire Brands' deleveraging. A heavily secondary deal is a statement about what existing owners think the business is worth today, with no implication at all about the company's own cash needs; this earlier look at an all-OFS listing covers the same mechanic from a single-company angle.
It's also a quick filter worth applying before digging into any name in Zorro's upcoming-IPO tracker: a filing's "use of proceeds" section — or, for the deals still in registration, the status line itself — usually states the primary/secondary split in the first paragraph. Once a company actually prices and starts trading, that distinction stops mattering for day-to-day price action, which is why it shows up in filing-stage coverage and not in the live quotes tracked on recent IPOs once a listing has priced.