What is an anchor investor? SEBI IPO rules (2026)

An anchor investor is a qualified institutional buyer that applies for a large block of an IPO and is allocated shares one day before the issue opens to the public. SEBI's ICDR Regulations set the terms: at least 10 crore rupees in a mainboard book-built issue, at least 2 crore rupees in an SME issue, up to 60 percent of the QIB portion, and a lock-in on the shares (Regulation 2(1)(c) and Schedule XIII, Part A, paragraph 10, consolidated text last amended 21 March 2026, read 24 September 2026). The allocation is published on the exchanges before the issue opens.

What is an anchor investor allowed to do under SEBI's rules?

An anchor bids one day before the issue opening date, and the allocation is completed on that same day (Schedule XIII, Part A, paragraphs 10(e) and 10(g)). Allocation is discretionary, made by the issuer with the lead managers, but it sits inside limits on the number of anchors and the size of each allotment. For a mainboard issue, as substituted by the ICDR (Third Amendment) Regulations, 2025 with effect from 1 December 2025, paragraph 10(c)(I) reads:

Before 1 December 2025 the add-on above 250 crore rupees was 10 anchors per further 250 crore, and allocations up to 10 crore rupees had a separate cap of 2 anchors. SME issues keep their own ladder: up to 2 anchors for an allocation up to 2 crore rupees, 2 to 15 up to 25 crore rupees, and above that 5 to 15 for the first 25 crore rupees plus 10 more for every further 25 crore rupees. Above 2 crore rupees each SME anchor must be allotted at least 1 crore rupees (paragraph 10(c)(II)). That 1 crore figure is the minimum allotment per SME anchor, not the minimum application, which is 2 crore rupees.

How much of the anchor book is reserved?

Paragraph 10(d) now reserves 40 percent of the anchor portion: 33.33 percent for domestic mutual funds and 6.67 percent for life insurance companies and pension funds. A life insurer here is an entity registered with IRDAI, and a pension fund one registered with PFRDA. If the insurer and pension slice is not taken up, the unused part may be allocated to mutual funds. Before the change, the text reserved only one third of the anchor portion, for domestic mutual funds alone.

The anchor filing shows the split in practice. In the Moneyview Limited IPO, the allocation letter to NSE and BSE dated 23 September 2026 put 72.29 percent of the anchor portion with domestic mutual funds and 3.06 percent with a life insurer. How to find anchor investors walks through that filing.

Who cannot be an anchor investor?

Paragraph 10(k) bars two groups from the anchor category. The first is the lead managers and their associates, with carve-outs for mutual funds, insurers, AIFs, certain foreign portfolio investors and pension funds sponsored by an associate. The second is anyone related to the promoter or promoter group. A QIB counts as related if it holds rights under a shareholders' or voting agreement with the promoters, a veto right, or a right to appoint a nominee director.

Why does the anchor lock-in matter?

Anchor shares are not all free to trade at listing. Half of each anchor's allotment is locked in for 90 days from allotment and the other half for 30 days (paragraph 10(j)). The 90-day tranche was added by a 2022 amendment for issues opening on or after 1 April 2022, and from 1 July 2022 for issues of 10,000 crore rupees or more. There is also a price rule: if the final issue price is set above the anchor price, the anchor pays the difference, and if it is set below, nothing is refunded (paragraph 10(h)). The full set of IPO lock-ins is in what an IPO lock-in is.

Where is the anchor allocation disclosed?

The lead managers must give the exchanges the number of shares allocated and the price, for dissemination on the exchange websites before the issue opens (paragraph 10(i)). On NSE the file is the "Anchor Allocation Report" on the IPO's issue information page. It names each anchor investor, the shares allocated and the price. During the bidding period, the exchanges' daily demand display also carries the anchor allocation (Schedule XIII, Part A, paragraph 12(g)).

Anchor investing sits alongside other institutional routes into a company's stock, such as a qualified institutional placement and an offer for sale. Many anchors are foreign portfolio investors, whose holdings later surface in the quarterly shareholding pattern.

Flock reads primary filings and disclosures like these, dates each one, and links back to the source. What the data means for you is your call to make.