IPO Basics

IPO vs Share Market

Understand the difference between applying for an IPO and buying shares after listing in the secondary market.

By OpenIPO Research DeskReviewed by OpenIPO Editorial Team2 min read
Editorial note: This article is for IPO education only. Always verify issue details with the RHP, registrar, exchange notices and your financial advisor before investing.

IPO investing and share market investing are connected, but they are not the same activity. An IPO is a primary market offer where investors apply before the stock starts trading. Buying shares after listing is a secondary market transaction between existing buyers and sellers.

IPO means primary market

When you apply in an IPO, your bid is submitted during the issue window. If you receive allotment, shares are credited to your demat account before listing. The price is based on the declared price band or fixed issue price.

Share market means secondary market

After listing, the same company trades continuously during market hours. The price changes based on demand, supply, results, news, sector trends and overall market conditions. Investors can buy one share or many shares depending on liquidity and broker rules.

Key differences

  • Price discovery: IPO price is set before listing; listed share price changes every trading day.
  • Availability: IPO allotment is not guaranteed; listed shares can usually be bought if there is liquidity.
  • Information: IPO investors rely on RHP data; listed investors also get quarterly results and market history.
  • Risk: IPOs carry listing risk; listed shares carry market and business risk after listing.

Practical approach

New investors should avoid treating IPOs as lottery tickets. If the company is attractive but the IPO looks expensive, waiting for post-listing price discovery can be sensible. If the IPO is fairly priced and fundamentals are strong, applying with a clear exit or holding plan can work better.

Frequently Asked Questions

Is IPO part of the share market?

Yes, but an IPO belongs to the primary market. After listing, the shares trade in the secondary market on exchanges.

Which is better, IPO or buying after listing?

Neither is automatically better. IPOs can offer early entry, while listed shares provide more price history and market liquidity.

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