IPO Lock-In Ends: Is Your Portfolio at Risk?

When IPO lock-in periods expire, large investors can sell their shares freely. This can flood the market with supply, pushing prices down — and hurting retail investors who bought in early. Here's what you need to know before it hits your portfolio.

Here's what happened: IPO lock-in periods prevent pre-IPO and anchor investors from selling shares for a fixed window — typically 30 to 180 days after listing.. When lock-ins expire on multiple recent IPOs simultaneously, a large volume of shares enters the market, creating selling pressure on stock prices.. Retail investors who bought shares post-listing at higher prices are most vulnerable when institutional and promoter shareholders exit in bulk after lock-in expiry..

What you should do: Check the lock-in expiry date of any recently listed stock you hold — SEBI mandates disclosure in the IPO prospectus, available on BSE/NSE websites.. Avoid averaging down on a recent IPO stock close to its lock-in expiry date — wait until the selling pressure stabilises over 2-4 weeks post-expiry.. Review your demat portfolio for any IPO allotments from the past 6 months and set a price alert so you can react quickly if a sharp dip begins..

Anchor investors' 30-day lock-in expires much earlier than the 90-180 day window for other pre-IPO shareholders — watch for two separate sell-off windows, not just one.

For readers weighing their credit and loan options, our personal loan guide and CIBIL score resources put this update in context.