Difference Between IPO & OFS

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Last Updated: 01 Jul 2026, 04:26 PM IST

Difference Between IPO & OFS

IPO Investing made simple!

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When companies offer shares to investors, they can do so through different methods. Two of the most common are an Initial Public Offering (IPO) and an Offer for Sale (OFS). While both allow investors to buy shares, they differ in how they work, who receives the money, and why the shares are being offered.

Understanding these differences can help you make more informed investment decisions. This article explains what is OFS in IPO, their key differences, and how they compare. 
 

What is IPO?

An Initial Public Offering (IPO) is the process through which a private company offers its shares to the public for the first time. When a company launches an IPO, it issues new shares to raise capital, which may be used for business expansion, debt repayment, or funding operations. These shares are then listed on stock exchanges like the BSE or NSE, making them available for trading.


For example, a technology company may launch an IPO to raise funds for research and product development. The proceeds go directly to the company, and investors who receive an allotment become shareholders.
 

What is OFS?

An Offer for Sale (OFS) is a mechanism that allows existing shareholders, typically promoters or large investors, to sell their shares to the public through the stock exchange. Unlike an IPO, no new shares are issued in an OFS. The shares being sold already exist, and the proceeds go to the selling shareholders, not the company.

OFS is commonly used by companies to comply with SEBI's minimum public shareholding requirement of 25% for listed entities. For instance, a promoter holding 80% of a company may use OFS to reduce their stake and transfer a portion to public investors. 

Now that you know what is OFS in IPO, let’s see their differences and advantages further in the article.

OFS vs IPO: Key Differences

This table explains the difference between fresh issue and offer for sale.

Parameter IPO OFS
Purpose Raise fresh capital for the company Allow existing shareholders to sell their stake
Share Type New shares are issued Existing shares are sold
Proceeds Go to the company Go to the selling shareholders
Equity Dilution Existing shareholders' stake is diluted No dilution occurs
Company Status Private company going public Already listed company
Participation Window Typically 3 to 5 days Usually 1 trading day
Pricing Method Fixed price or book building Auction-based with a floor price
Retail Investor Quota Up to 35% of issue size Typically 10%, often at a discount
Regulatory Process Extensive SEBI scrutiny, prospectus required Simpler process, less documentation

Advantages & Disadvantages of IPO

Advantages:

  • Capital for Growth: IPOs provide companies with funds for expansion, R&D, or debt repayment, as seen in what is IPO scenarios.
  • Increased Visibility: Going public boosts a company's brand and credibility, attracting more investors in India.
  • Liquidity for Investors: Shares become tradable on exchanges, offering liquidity to early investors.
  • Potential High Returns: Indian investors often see IPOs as opportunities for listing gains if the stock performs well post-launch.

Disadvantages:

  • High Costs: IPOs involve underwriting fees, legal costs, and compliance expenses, making them expensive.
  • Regulatory Scrutiny: Companies face strict SEBI regulations and ongoing disclosure requirements.
  • Risk of Underperformance: If the IPO is overpriced, the stock may fall post-listing, leading to losses for investors.
  • Dilution: Existing shareholders' stakes are diluted as new shares are issued.
     

Advantages & Disadvantages of OFS

Advantages:

  • Quick Process: OFS is simpler and faster than an IPO, allowing shareholders to offload shares quickly, as noted in what is OFS explanations.
  • No Dilution: Since no new shares are issued, existing shareholders' stakes remain intact.
  • Liquidity for Promoters: Promoters can cash out their holdings, often to meet SEBI's public shareholding norms.
  • Cost-Effective: OFS involves lower costs compared to an IPO, benefiting selling shareholders.

Disadvantages:

  • No Benefit to Company: Unlike an IPO, the company doesn't receive funds, which can limit growth opportunities.
  • Share Price Pressure: Large OFS sales can lead to an oversupply of shares, potentially lowering the stock price.
  • Limited Investor Appeal: OFS may not generate as much hype as an IPO, reducing retail investor interest.
  • Promoter Exit Concerns: A large OFS by promoters might signal a lack of confidence, worrying investors.

In an OFS vs IPO analysis, OFS is more about shareholder liquidity, while IPOs focus on company growth.

How to Invest in IPO & OFS

Investing in an IPO:

  • Open a Demat Account: You need a Demat and trading account with a broker to apply for an IPO.
  • Check IPO Details: Review the company’s prospectus (available on SEBI’s website) for details like issue price, lot size, and subscription dates.
  • Apply via ASBA: Use the Application Supported by Blocked Amount (ASBA) facility through your bank or broker to apply. In India, you can apply online via net banking or broking platforms like 5paisa.
  • Wait for Allotment: If oversubscribed, shares are allotted on a lottery basis. Unallotted funds are refunded.
  • Trade Post-Listing: Once listed on the BSE or NSE, you can trade the shares.
     

Conclusion

Both IPO and OFS provide investors with an opportunity to acquire shares in companies, but they serve different purposes. An IPO helps a company raise fresh capital and list on a stock exchange for the first time, while an OFS allows existing shareholders to transfer their holdings to the public without the company receiving any funds. Understanding the distinction can help investors assess which opportunity aligns better with their investment approach and risk appetite.

Disclaimer: Investment in securities market are subject to market risks, read all the related documents carefully before investing. For detailed disclaimer please Click here.

Frequently Asked Questions

An OFS can lead to a temporary drop in share price due to increased supply, especially if the sale is large. However, in OFS vs IPO, the impact varies based on market perception and demand.

No, OFS is not a type of IPO. While both involve selling shares to the public, IPO vs OFS shows that IPOs issue new shares for a company to raise capital, while OFS involves selling existing shares by shareholders.
 

Yes, you can sell OFS shares immediately after allotment since the company is already listed on the stock exchange, unlike some IPOs with lock-in periods.

Yes, OFS shares are taxable. In India, profits from selling OFS shares are subject to capital gains tax: 15% for short-term gains (less than 1 year) and 10% for long-term gains (above ₹1 lakh).
 

No, IPO gains are not tax-free. Like OFS, profits from IPO shares are subject to capital gains tax in India: 15% for short-term gains and 10% for long-term gains above ₹1 lakh.

IPOs carry risks such as overvaluation, allotment uncertainty, and sharp price movements post-listing, since the company has no prior trading history. OFS involves already-listed companies, which reduces some uncertainty, but a large promoter sell-off may signal reduced confidence in the stock and can create short-term price pressure.

Yes. A company can combine both in the same issue. In such cases, the IPO component involves fresh share issuance to raise funds for the company, while the OFS component allows existing shareholders to sell their holdings simultaneously.

OFS transactions are usually faster than IPOs. OFS bidding typically lasts one trading day, and settlement for retail bids is generally on T+2, while IPOs usually stay open for several days and take longer to complete after issue closure.

In OFS, SEBI mandates at least 10% reservation for retail investors, and sellers may offer a discount to retail. IPO retail reservation is usually higher, but the exact percentage depends on the issue structure and applicable rules

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