Offer Price Determination (Regulation 8)

An open offer is the mechanism by which the SEBI Takeover Code converts a private change of control into a public exit right. But the right is only as valuable as its price. Regulation 8 of the SEBI (Substantial Acquisition of Shares and Takeovers) Regulations, 2011 supplies the answer: it lays down a statutory floor below which the offer price can never fall, built from the highest of several objective market and transaction benchmarks. The animating principle is parity — the public shareholder should receive at least what the outgoing promoter received for surrendering control. This chapter dissects each limb of Regulation 8 for both direct acquisitions and indirect acquisitions, the frequently/infrequently traded distinction, the per-day interest for delay, and the case law that has shaped how these formulae operate in practice.

Why the law fixes a price floor at all

When an acquirer crosses one of the trigger thresholds — the 25% line under Regulation 3, an agreement to acquire control under Regulation 4, or a creeping acquisition under the relevant ceiling — a mandatory open offer is set in motion. The economic logic of the takeover code is that a controlling block almost always changes hands at a premium that reflects the value of control. If the acquirer were free to offer the ordinary public shareholders whatever it liked, the control premium negotiated privately with the promoter would be captured entirely by the insider, and the public would be left to exit at a depressed market quote. Regulation 8 prevents this by mandating a minimum price that is benchmarked to, among other things, the very price the acquirer agreed to pay the seller.

The principle is one of equality of treatment: every shareholder of the same class is entitled to participate in the control premium on identical terms. The Supreme Court articulated the philosophy of the takeover regime in Swedish Match AB v. Securities and Exchange Board of India, (2004) 11 SCC 641, where it upheld SEBI's insistence that an acquirer who had effectively secured control of the target could not escape the public-offer obligation, and that the consideration flowing to the controlling group is central to fixing the public price. Although decided under the 1997 Regulations, the parity rationale carries directly into Regulation 8 of the 2011 Code. To see how the trigger feeds into pricing, read the chapter on the trigger for an open offer.

The architecture of Regulation 8

Regulation 8(1) is the gateway. It provides that an open offer for acquiring shares under Regulation 3, 4, 5 or 6 "shall be made at a price not lower than the price determined in accordance with sub-regulation (2) or sub-regulation (3), as the case may be." The bifurcation is fundamental: sub-regulation (2) governs direct acquisitions, while sub-regulation (3) governs indirect acquisitions. Each then offers a menu of benchmarks, and the offer price must equal the highest of the applicable benchmarks.

Two cross-cutting refinements sit on top of this structure. First, every benchmark is sensitive to whether the shares are frequently traded or infrequently traded — a distinction defined in Regulation 2(1)(j) and discussed below. Second, the price can only ever be revised upward, never downward, once announced. The framework is therefore deliberately one-directional in favour of the public shareholder: the law builds a floor, lets the acquirer raise it, and forbids the acquirer from lowering it.

Frequently traded versus infrequently traded shares

The choice of pricing methodology turns on liquidity. Regulation 2(1)(j) defines "frequently traded shares" as shares of a target company in which the traded turnover on any stock exchange during the twelve calendar months preceding the calendar month in which the public announcement is required to be made is at least ten per cent of the total number of shares of that class of the target company. Importantly, where the share capital is not identical throughout that period, the weighted average number of total shares is taken as the benchmark.

The ten-per-cent annualised turnover test is a bright-line liquidity filter. If it is satisfied, the market price of the share is treated as a reliable signal of value and the sixty-trading-day volume-weighted average market price becomes one of the pricing benchmarks. If it is not satisfied, the share is infrequently traded, the market quote is distrusted, and the price must instead be built up from valuation parameters. This single definition therefore decides whether an open offer is priced off the screen or off a valuer's report. The concept relies heavily on the foundational vocabulary set out in the chapter on key definitions.

Direct acquisitions: the five benchmarks of Regulation 8(2)

For a direct acquisition of frequently traded shares, Regulation 8(2) requires the offer price to be the highest of the following: (a) the highest negotiated price per share of the target company for any acquisition under the agreement attracting the obligation to make the public announcement; (b) the volume-weighted average price paid or payable for acquisitions by the acquirer or persons acting in concert during the fifty-two weeks immediately preceding the date of the public announcement; (c) the highest price paid or payable for any acquisition by the acquirer or persons acting in concert during the twenty-six weeks immediately preceding the date of the public announcement; and (d) the volume-weighted average market price of the shares for a period of sixty trading days immediately preceding the date of the public announcement as traded on the stock exchange where the maximum volume of trading in the shares of the target company is recorded during that period, provided the shares are frequently traded.

The benchmarks layer different windows of information. Limb (a) captures the deal price — the parity anchor. Limbs (b) and (c) sweep up the acquirer's own purchases over one year and six months respectively, preventing an acquirer from quietly accumulating at high prices and then offering the public a lower figure. Limb (d) imports the open-market consensus over sixty trading days. By mandating the highest of these, Regulation 8(2) ensures the public shareholder is never disadvantaged relative to either the seller or recent market participants.

The negotiated price and non-cash consideration

Limb (a) — the highest negotiated price — is the most litigated benchmark because acquirers historically attempted to disguise part of the control premium as a separate, non-share payment. The classic device was the "non-compete" or "control" fee paid to the outgoing promoter over and above the share consideration, on the theory that it was payment for a covenant not to compete rather than for the shares. The 2011 Code closed this door: the regime no longer permits an acquirer to pay the promoter a separate non-compete premium and exclude it from the public offer price. Any consideration that is in substance attributable to the acquisition of shares must be folded into the negotiated price for the purpose of Regulation 8(2)(a).

Where the consideration under the triggering agreement is wholly or partly non-cash — for instance, where the acquirer issues its own listed securities as consideration — the per-share value of that consideration must be reckoned, and following the SEBI (SAST) (Amendment) Regulations, 2025 (notified on 3 December 2025), the value of such securities offered as consideration must be certified by an independent registered valuer. This guards against an acquirer inflating the apparent value of paper consideration to dress up a thin cash offer. The link between the negotiated terms and the trigger is explored further in the chapter on the trigger for an open offer.

The sixty-trading-day VWAMP and the choice of exchange

The sixty-trading-day volume-weighted average market price (VWAMP) under limb (d) is the market-based anchor for frequently traded shares. Three features deserve attention. First, the window is sixty trading days, not calendar days, measured immediately before the date of the public announcement — the date of the public announcement, not the later detailed public statement, is the reference point for a direct acquisition. Second, it is volume-weighted, so heavily traded days dominate the average and a single thin-volume spike cannot distort the figure. Third, the average is computed on the stock exchange where the maximum volume of trading in the target's shares is recorded during that sixty-day period, ensuring the most liquid and therefore most reliable price discovery venue is used.

This benchmark only applies if the shares clear the frequently-traded threshold of Regulation 2(1)(j). If they do not, limb (d) drops away entirely and the price is built up under the infrequently-traded route. It is a common examination trap to apply the sixty-day VWAMP to an infrequently traded share — the regulation expressly excludes that.

Pricing infrequently traded shares

Where the target's shares are infrequently traded, the market quote is treated as unreliable and the sixty-day VWAMP benchmark is unavailable. Instead, the price is determined by the acquirer and the manager to the open offer taking into account valuation parameters including the book value, comparable trading multiples, and such other parameters as are customary for the valuation of shares of such companies. The negotiated price, fifty-two-week VWAP and twenty-six-week highest price benchmarks continue to apply; only the market-price limb is replaced by a valuation exercise.

Historically this valuation was performed by the merchant banker without a mandatory independent check, which created room for under-valuation in promoter-driven offers. The SEBI (SAST) (Amendment) Regulations, 2025 tightened this materially by mandating that the valuation of infrequently traded shares be undertaken by an independent registered valuer, with the cost borne by the acquirer, wherever limited or sporadic trading means the market price cannot be relied upon to reflect fair value. The shift hands the minority shareholder an independent professional safeguard rather than relying solely on the deal manager's judgment.

Indirect acquisitions: Regulation 8(3) and the shifted reference date

An indirect acquisition arises where control of a listed target is acquired not by buying its shares directly but by acquiring an upstream entity that itself controls the target. Regulation 8(3) applies a parallel set of benchmarks to such acquisitions, but with a crucial modification to the reference date. The fifty-two-week VWAP, the twenty-six-week highest price and the sixty-day VWAMP are all measured by reference to the period immediately preceding the earlier of (i) the date on which the primary acquisition is contracted, and (ii) the date on which the intention or the decision to make the primary acquisition is announced in the public domain.

The reason is that, in an indirect deal, the market price of the listed target may move sharply once the upstream transaction becomes known. Pegging the look-back to the date of the contract or its public announcement — rather than to the later open-offer public announcement — prevents the post-leak run-up from inflating or deflating the floor price artificially. Regulation 8(3) also adds, as a further benchmark, the per-share value of the target computed by the acquirer taking into account valuation parameters where the relevant figures are material, and the highest price paid by the acquirer for any acquisition of the target's shares between the date of the primary acquisition and the date of the public announcement of the open offer. The mechanics of how an upstream deal is brought within the Code are set out in the chapter on indirect acquisition.

When an indirect acquisition is treated as direct

Not every indirect acquisition is priced under the softer Regulation 8(3) route. Where the target company is so significant within the acquired group that the indirect deal is in substance a direct purchase of the target, the Code re-characterises it. Under Regulation 5(2), if the proportionate net asset value, or the proportionate sales turnover, or the proportionate market capitalisation of the target company — relative to the entity or business being acquired — exceeds eighty per cent, on the basis of the most recent audited annual financial statements, the indirect acquisition is regarded as a direct acquisition of the target for all purposes of the Regulations, including pricing under Regulation 8(2).

The eighty-per-cent test prevents acquirers from cloaking what is really a direct acquisition of a listed company inside a thin holding-company wrapper merely to obtain the more flexible indirect reference dates. Where the eighty-per-cent threshold is not crossed, the indirect-acquisition benchmarks of Regulation 8(3) govern, and the per-day interest discussed next becomes relevant.

Interest for delay between primary acquisition and the offer

In an indirect acquisition (other than one re-characterised as direct under Regulation 5(2)), there is often a real gap between the date the upstream primary acquisition is contracted or announced and the date the detailed public statement for the open offer is made. To compensate the public shareholder for being kept waiting while the acquirer already enjoys control, the Code enhances the offer price. The offer price stands enhanced by an amount calculated at the rate of ten per cent per annum for the period between the earlier of the date on which the primary acquisition is contracted or the date on which the intention or decision to make the primary acquisition is announced in the public domain, and the date of the detailed public statement — provided that period exceeds five working days.

This per-annum top-up performs a time-value-of-money function: the longer the acquirer delays bringing the open offer to the public after locking up control upstream, the higher the floor price climbs. It removes any incentive to stall the public exit while the acquirer consolidates its position.

Persons acting in concert and the look-back benchmarks

The fifty-two-week and twenty-six-week look-back benchmarks count acquisitions made not only by the acquirer but also by persons acting in concert (PAC) with it. The scope of "persons acting in concert" therefore directly affects the floor price: a wider PAC universe sweeps in more historical purchases that may set a higher benchmark. The leading authority is Daiichi Sankyo Company Ltd. v. Jayaram Chigurupati, decided by the Supreme Court on 8 July 2010. Daiichi had acquired control of Ranbaxy, which in turn held shares in Zenotech Laboratories; the question was whether Ranbaxy's earlier purchases of Zenotech shares at a higher price had to set the floor for Daiichi's indirect open offer for Zenotech.

The Supreme Court held that two or more persons become "persons acting in concert" only when they come together with the shared common objective of substantially acquiring shares of a particular target company; a mere holding-subsidiary relationship is not, by itself, enough, and the deeming of concert operates prospectively from the moment that relationship and shared objective arise. On the facts, because Ranbaxy had bought the Zenotech shares before it became Daiichi's subsidiary and before any shared objective to acquire Zenotech existed, those earlier higher-priced purchases did not bind Daiichi, and the lower price prevailed. The decision remains the touchstone for deciding whose past purchases feed the Regulation 8 benchmarks, a question that overlaps heavily with the chapter on indirect acquisition.

Revision of the offer price — one-way ratchet

Once the open offer is announced, the price is not frozen but it can only move in one direction. An acquirer is permitted to revise the offer price upward, and the regulations require that such an upward revision be made at any time prior to the commencement of the last working day before the tendering period opens, with the revision duly announced and the additional consideration deposited in the escrow account. There is no power to revise the price downward: the announced figure operates as a ceiling on the acquirer's freedom and a floor for the shareholder's entitlement.

Relatedly, if during the offer period the acquirer or a PAC acquires any shares of the target at a price higher than the offer price, the offer price is automatically revised upward to that higher price — reinforcing parity throughout the offer and preventing side-deals at superior terms. The acquirer cannot pay one exiting shareholder more than the public is offered.

Sanctity of the offer once made

Because the offer price embodies a vested exit right of the public shareholder, the courts have been reluctant to let an acquirer escape an offer simply because the deal has turned uneconomical. In Nirma Industries Ltd. v. SEBI (decided 9 May 2013), the Supreme Court refused to allow withdrawal of an open offer where the acquirer's real grievance was anticipated economic loss following alleged fraud at the target. The Court read the residuary power to permit withdrawal ejusdem generis with the specifically enumerated grounds, all of which involved a genuine impossibility of performing the offer, and held that economic hardship is not such a ground.

The principle was reaffirmed in SEBI v. Akshya Infrastructure Pvt. Ltd. (decided 25 April 2014), where the Court again declined to permit withdrawal merely because regulatory delay had rendered the offer unattractive, and in Pramod Jain v. SEBI (decided 7 November 2016), concerning the Golden Tobacco open offer, where the Court once more upheld the strict, narrowly-construed grounds for withdrawal. Together these decisions establish that the offer price, once validly fixed under Regulation 8 and announced, is largely irrevocable — the acquirer must honour it. This protects the integrity of the floor that Regulation 8 so carefully constructs.

Exam-grade synthesis

For judiciary and CLAT-PG purposes, internalise the skeleton. Regulation 8(1) is the gateway pointing to 8(2) for direct and 8(3) for indirect acquisitions. The offer price is always the highest of the applicable benchmarks. For a direct acquisition of frequently traded shares, the four core benchmarks are: highest negotiated price; fifty-two-week VWAP; twenty-six-week highest price; and sixty-trading-day VWAMP on the maximum-volume exchange. "Frequently traded" means at least ten per cent annualised turnover over the twelve calendar months before the public-announcement month, per Regulation 2(1)(j).

For infrequently traded shares the VWAMP limb is replaced by a valuation built on book value, comparable trading multiples and other customary parameters — now subject to mandatory independent registered-valuer certification after the 2025 amendment. For indirect acquisitions, the look-back shifts to the earlier of the primary-acquisition contract date or its public announcement, and a ten-per-cent-per-annum interest top-up applies where the gap to the detailed public statement exceeds five working days; but if proportionate net assets, turnover or market capitalisation exceed eighty per cent under Regulation 5(2), the deal is priced as a direct acquisition. Remember the case anchors: Daiichi Sankyo v. Jayaram Chigurupati for whose purchases count via the PAC concept; Swedish Match for the parity philosophy; and the Nirma, Akshya and Pramod Jain trilogy for the sanctity and irrevocability of the offer price once announced. For the broader statutory backdrop, revisit the SEBI Takeover Code hub and the chapter on the 25% substantial-acquisition threshold.