Why IPOs seem to arrive in clusters
If you track IPO news even loosely, you'll notice a pattern: long quiet stretches, followed by a sudden pile-up of companies filing draft papers or launching share sales within weeks of each other. This isn't coincidence. It's mostly driven by a regulatory rule most retail investors never hear about — the validity period of SEBI's observations on a company's draft red herring prospectus (DRHP).
When a company files a DRHP, SEBI reviews it and issues "observations," effectively a green light to proceed. But that approval isn't open-ended. Historically, companies had 12 months from the date of observations to actually launch the IPO; SEBI has since tightened this window in various contexts. If a company misses that deadline, it typically has to refile the draft prospectus, update all its financials, and go through the review process again — a process that can easily add several months and fresh costs of compliance, legal work, and merchant banker fees.
So when a batch of companies is staring at an expiring approval around the same time — often because they all filed drafts in a similar earlier window — you get exactly this kind of rush: multiple issues launching back-to-back, sometimes even overlapping on the subscription calendar.
The financial statement clock adds pressure too
There's a second, quieter deadline at play: the age of the financial statements in the offer document. SEBI rules require that the audited financials disclosed in the prospectus not be older than a certain number of months at the time of filing — commonly cited as within 6 months, though this can extend slightly under specific conditions. This means a company can't simply sit on approved papers indefinitely; if its latest quarter's numbers go "stale," it must refresh the entire financial section, get it re-audited, and sometimes re-file.
Put these two clocks together — the observation validity and the financial statement freshness rule — and you get a natural bunching effect. Companies that filed drafts around the same quarter tend to face expiry around the same quarter too, which is why IPO calendars often look empty for a while and then suddenly crowded.
Why this matters more than you'd think for retail investors
A rushed IPO isn't automatically a bad IPO, but the "deadline effect" changes a few things worth watching:
- Pricing can get more aggressive when a company is racing to close before market conditions turn or before its approval lapses — there's less room to wait for a friendlier window.
- Anchor investor allocations and grey market activity tend to get compressed into a short calendar stretch, making it harder for retail investors to properly research each issue before applying.
- Multiple IPOs competing for the same investor pool in the same week can affect subscription levels and listing-day pop, independent of the company's actual fundamentals.
- Companies under time pressure sometimes have less room to negotiate valuation with merchant bankers, since delaying isn't a free option anymore.
None of this means you should avoid every IPO launched in a rush. It means the "why now" question deserves as much attention as the "why this company" question.
How to actually evaluate an IPO in a crowded window
When several offers are open around the same time, a simple filter helps more than trying to read every page of every prospectus:
- Check the "objects of the issue" section first. Is the money going toward debt repayment, working capital, or genuine expansion? Debt-repayment-heavy issues deserve extra scrutiny on why promoters are choosing public markets over refinancing privately.
- Look at revenue and profit trends across at least three years, not just the latest quarter. A single strong quarter dressing up the picture right before filing is a known red flag.
- Compare valuation multiples to already-listed peers in the same sector. If the IPO price implies a much richer multiple than comparable listed companies, ask why.
- Read the risk factors section, especially litigation and related-party transactions. Companies rushing to beat a deadline sometimes have less time to clean up disclosures.
- Note the promoter/anchor lock-in structure. Heavy selling by existing shareholders (an "offer for sale") versus fresh issue of shares tells you whether the company itself is raising growth capital or insiders are partly cashing out.
Managing your money when multiple IPOs overlap
A practical issue during these clustered windows is simply cash management. Blocking funds through ASBA (Application Supported by Blocked Amount) for one IPO ties up that money until allotment or refund, which can take about a week. If two or three attractive issues open in overlapping windows, you may need to prioritize rather than spread thin bids across all of them, since allotment in retail categories is usually lottery-based for oversubscribed issues anyway — bidding the minimum lot in several IPOs doesn't meaningfully raise your odds versus focusing on one or two you've actually researched.
It's also worth remembering that listing-day gains from a hot IPO are taxed as short-term capital gains if sold within a year, so factor that into your real returns before treating a listing pop as free money.
The takeaway
A wave of IPOs launching together is usually a regulatory artifact, not necessarily a market signal about equity valuations being attractive or crowded. Understanding that the rush is often about approval deadlines and financial statement expiry — not about a sudden consensus that "now is the time" — helps you evaluate each offer on its own merits instead of getting swept up in calendar noise. The best approach in a busy IPO season is the same as in a quiet one: read the prospectus, compare to listed peers, and only apply with money you can afford to have locked up for a week or two while allotment plays out.
