Preferential Issue Relevant Date: How SEBI’s Formula Sets the Floor Price

Every time a listed company announces shares for a promoter, a strategic investor or a fund through a preferential allotment, the first question on the trading desk is the same: at what price? And the answer almost always starts with one date. The preferential issue relevant date is the reference point SEBI uses to fix the minimum price, and once you know how it’s picked, you can sanity-check the price in the notice yourself in about ten minutes.

We’ll walk through what the regulations actually say, how the floor price formula works off that date, what changes for newly listed and thinly traded stocks, and then run a full worked example with made-up numbers. The rules quoted here come from Chapter V of the SEBI (Issue of Capital and Disclosure Requirements) Regulations, 2018, usually called ICDR, using a consolidated copy of the ICDR Regulations updated to March 21, 2026.

What the preferential issue relevant date is

Regulation 161 of ICDR defines it. For a preferential issue of equity shares, the relevant date is the date thirty days before the date on which the shareholders’ meeting is held to consider the issue. That meeting could be an AGM, an EGM or a postal ballot, as the Vinod Kothari Consultants FAQ on preferential issues explains.

Notice what that means in practice. The date is not when the board meets, and not when shares are finally allotted. It is anchored to the shareholder vote and counted backwards. So the price is locked off market data that ends a full month before shareholders decide.

Three wrinkles in Regulation 161 are worth knowing:

• Weekends and holidays. If the relevant date lands on a weekend or a holiday, the day before the weekend or holiday is treated as the relevant date.
• Convertible securities. For convertibles such as warrants, the issuer can use either the normal relevant date or a date thirty days before the holders become entitled to apply for the equity shares.
• Stressed assets. Where the issue is part of a resolution of stressed assets under an RBI framework, or a resolution plan approved by the NCLT under the Insolvency and Bankruptcy Code, the date the restructuring package or resolution plan is approved becomes the relevant date.

Regulation 163(4) also requires the special resolution itself to specify the relevant date used for pricing shares that will come from converting or exchanging convertible securities. So for warrants, the notice should tell you which option the company has picked.

The floor price formula for frequently traded shares

Once the relevant date is fixed, Regulation 164(1) takes over. If the shares have been listed for 90 trading days or more as on the relevant date, the issue price cannot be lower than the higher of two numbers:

1. the volume weighted average price (VWAP) of the shares over the 90 trading days preceding the relevant date, and
2. the VWAP over the 10 trading days preceding the relevant date.

VWAP here is total traded value divided by total shares traded over the window. The Vinod Kothari FAQ writes it as T1 + T2 + … + T90 divided by V1 + V2 + … + V90, where T is turnover and V is volume for each day. It is not a simple average of closing prices, so a few heavy-volume days move it much more than a dozen sleepy ones.

There’s one more layer. A proviso to Regulation 164(1) says that if the company’s Articles of Association lay down a method that produces a higher floor price, that higher number becomes the floor. Most companies don’t have such a clause, but it’s worth a glance in the notice.

The relevant date doesn’t set the price by itself. It decides which 90 and 10 trading days get counted, and that window is where most of the outcome is decided.

Is the stock even “frequently traded”?

The 90/10 formula applies to frequently traded shares. Regulation 164(5) defines these as shares whose traded turnover on a recognised stock exchange over the 240 trading days before the relevant date is at least 10% of the total number of shares of that class. “Traded turnover” in this test means the number of shares traded, not the rupee value.

For this test, the exchange that counts is the one where the stock recorded the highest trading volume during the 90 trading days before the relevant date. For most large Indian stocks that’s the NSE, but the rule doesn’t assume it.

If the shares fail the test, Regulation 165 applies instead. The price then has to take into account valuation parameters such as book value, comparable trading multiples and other customary measures, and the company must submit a certificate from an independent registered valuer to the stock exchange confirming compliance. In other words, the market price stops being the anchor and a valuation report steps in.

Newly listed companies: the under-90-days rule

A company that has been listed for fewer than 90 trading days on the relevant date can’t produce a 90-day VWAP. Regulation 164(2) gives it a different floor, the highest of:

• the IPO price, or the per-share value in the scheme of arrangement under sections 230 to 234 of the Companies Act, 2013, through which the shares got listed;
• the average of the VWAP during the period the shares have been listed before the relevant date; and
• the average of the 10 trading days’ VWAP during the two weeks before the relevant date.

That isn’t the end of it. Regulation 164(3) says the price must be recomputed once the stock completes 90 trading days from listing, using the 90-day VWAP over those days. If the recomputed price is higher than what the allottee paid, the allottee pays the difference to the company. This is why notices for young companies carry an undertaking to recompute the price, which Regulation 163(1)(g) requires.

Special cases that change the floor

Small QIB placements. Under Regulation 164(4), a preferential issue to qualified institutional buyers, not more than five of them, can be priced at no less than the 10 trading days’ VWAP before the relevant date. The 90-day leg drops out. But no allotment can go to a QIB that is a promoter or related to the promoters.

Big stakes or control. Regulation 166A kicks in when an issue may result in a change in control, or in allotting more than 5% of the post-issue fully diluted share capital to one allottee or to allottees acting in concert. The company then needs a valuation report from an independent registered valuer. The floor becomes the highest of the Regulation 164 floor, the valuer’s price and any Articles of Association price. If control changes, the report also has to give guidance on a control premium over that floor, and a committee of all the independent directors must give a reasoned recommendation, with its voting pattern disclosed in the meeting notice.

Corporate actions. Regulation 166 says the price must be adjusted if the company does things like a bonus issue, a rights issue, a demerger with listed shares, a consolidation or a stock split. Otherwise the VWAP from before the action wouldn’t be comparable.

How the rule got here

This formula is fairly new. A 2020 SEBI board memorandum on preferential issue pricing records that pricing guidelines were first introduced on August 4, 1994, using the average of weekly high and low closing prices over six months or two weeks before the relevant date. On August 25, 2014, SEBI replaced closing prices with VWAP because it better reflects the prices at which shares actually change hands.

The ICDR footnotes show the next step. The ICDR (Amendment) Regulations, 2022, effective January 14, 2022, replaced the old “average of the weekly high and low” over twenty-six weeks and two weeks with today’s 90 trading days and 10 trading days VWAP. Older articles you find online may still describe the 26-week method, so check the date before you rely on one.

A worked example with hypothetical numbers

Let’s price an imaginary issue. Every figure below is made up for illustration.

Step 1: find the relevant date. Say ABC Ltd calls an EGM for Friday, March 19, 2027. Thirty days before that is Wednesday, February 17, 2027, a weekday, so that’s the relevant date (assuming it isn’t a market holiday). Now suppose the EGM were on Monday, March 22, 2027 instead. Thirty days back is Saturday, February 20, 2027. Since that’s a weekend, the day before the weekend, Friday, February 19, 2027, becomes the relevant date.

Step 2: check frequently traded status. ABC has 12 crore shares outstanding. Over the 240 trading days before the relevant date, 1.8 crore shares traded on its main exchange. That’s 1.8 ÷ 12 = 15% of its share count, comfortably above the 10% threshold, so the 90/10 VWAP formula applies.

Step 3: compute the two VWAPs.

The 90-day VWAP is ₹540 crore ÷ 1.2 crore shares = ₹450. The 10-day VWAP is ₹78 crore ÷ 15 lakh shares = ₹520. The floor is the higher number: ₹520 per share. The recent rally pulled the 10-day figure up, and the rule makes the allottee pay for it.

Step 4: apply the overlays. ABC’s Articles of Association have no pricing clause, so nothing changes there. But the allottee is getting more than 5% of the post-issue fully diluted capital, so Regulation 166A needs a registered valuer’s report. Say the valuer comes in at ₹510. The floor stays at ₹520 because the regulation takes the highest of the numbers. Had the valuer said ₹540, the floor would have moved up to ₹540.

Step 5: compare with today’s price. Suppose by the time the notice reaches you, ABC trades at ₹560. An issue at the ₹520 floor is (560 − 520) ÷ 560, or about 7.1% below the current market price. That gap isn’t a violation of anything. It’s simply what happens when the stock moves after the window closes. Run the same arithmetic in a falling market and the issue price could end up above the market price.

An issue price below the market price on the day you read the notice isn’t automatically a sweetheart deal. Check it against the VWAP window first, then decide.

How we’d read a preferential issue notice

When one of these lands on the exchange filings page, here’s the quick routine we’d follow:

1. Find the stated relevant date and check it’s thirty days before the meeting, adjusted for weekends and holidays.
2. Look for the pricing basis. Is it the 90/10 VWAP, the under-90-days rule, the five-QIB rule, or a valuation under Regulation 165 for infrequently traded shares?
3. Check whether a valuer’s report is involved. If the allottee gets more than 5% or control changes, Regulation 166A applies and Regulation 166A(1) requires the report to be published on the company’s website and referred to in the notice.
4. Compare the issue price with the floor. Companies can issue above the floor, never below it. A price far above the floor tells you the investor wanted in badly.
5. Work out the dilution. The pricing rule protects the price, not your percentage holding. Our explainer on preferential allotment of shares walks through dilution and lock-in.

For warrants, also check which relevant date option the company chose, because the pricing can run off the conversion entitlement date rather than the meeting. Our piece on how preferential warrants work covers the rest of that structure. And when an allotment is big enough to cross takeover thresholds, the open offer rules may come into play as well.

Where investors usually trip up

The most common mistake is treating the board meeting date as the pricing date. It isn’t. The board can approve an issue, but the price window closes thirty days before shareholders vote. A second mistake is comparing the issue price with the closing price on the day of the announcement. That’s not the yardstick. VWAP over 90 and 10 trading days is.

A third trap is ignoring the frequently traded test. For a small, illiquid stock, the 10% turnover threshold can fail, and then the price rests on a valuer’s judgement under Regulation 165 rather than on market trades. That’s a very different kind of number, and you’d want to read the valuation basis closely.

Pulling it together

The preferential issue relevant date is thirty days before the shareholder meeting, moved back if it lands on a weekend or holiday. From that date, SEBI’s floor is the higher of the 90-day and 10-day VWAP for frequently traded shares, with separate routes for newly listed stocks, small QIB placements and illiquid shares, and a valuer’s report on top when more than 5% or control changes hands. Get the date right and the rest is arithmetic you can do yourself.

Disclaimer: This article is for educational purposes only and is not investment advice. ABC Ltd and all prices, volumes and dates in the worked example are hypothetical. Regulations change, so check the latest SEBI text before acting, and consult a SEBI-registered adviser before making investment decisions.