What is an IPO lock-in period?

A period after listing during which certain shareholders cannot sell. SEBI sets the durations: anchor investors are locked for 30 days on half their allocation and 90 days on the rest, pre-IPO shareholders for six months, and promoters for six or eighteen months depending on the portion.

When does the anchor lock-in expire?

Half of an anchor allocation unlocks 30 days after allotment and the remainder at 90 days. The two-tranche split was introduced in 2021; before that the entire anchor book unlocked together.

Does a lock-in expiry mean the share price will fall?

Not necessarily. An expiry means a quantity of shares becomes sellable, not that anyone sells. Sometimes a tranche unlocks and nothing happens. It is a supply event with a known date, which is a fact — what follows is not.

How long is the promoter lock-in?

Eighteen months for the 20% minimum contribution, reduced from three years in 2022, and six months for any holding above that minimum.

IPO Lock-in Expiry Calendar

126 unlocks in the next 120 days · 63 within 30 · updated 16 Oct 2026, 8:28 pm IST

When shares held by anchor investors, pre-IPO shareholders and promoters become sellable. These dates are fixed by regulation at allotment, so they are knowable months ahead — the most predictable supply events in a newly listed company's life.

An expiry is a supply event, not a forecast. It means a quantity of shares becomes sellable. Whether anyone sells, and what that does to a price, is not something this page claims to know.

Company	Who unlocks	Date	Away	Portion
Injecto Polymers Limited SME	Anchor investors (first half)	19 Oct 2026	2d	50% of anchor allocation
Century Business Media Limited SME	Anchor investors (first half)	19 Oct 2026	2d	50% of anchor allocation
Manika Plastech Limited MAINBOARD · MANIKA	Anchor investors (first half)	19 Oct 2026	2d	50% of anchor allocation
Quanto Agroworld Limited SME	Anchor investors (first half)	20 Oct 2026	3d	50% of anchor allocation
Shakti Polytarp Limited SME	Anchor investors (first half)	20 Oct 2026	3d	50% of anchor allocation
Vama Wovenfab Limited SME	Anchor investors (first half)	20 Oct 2026	3d	50% of anchor allocation
Hero Motors Limited MAINBOARD · HEROMOTORS	Anchor investors (first half)	21 Oct 2026	4d	50% of anchor allocation
Jindal Supreme (India) Limited MAINBOARD · JSIPL	Anchor investors (first half)	21 Oct 2026	4d	50% of anchor allocation
SS Retail Limited MAINBOARD · SSRETAIL	Anchor investors (first half)	21 Oct 2026	4d	50% of anchor allocation
Kheria Autocomp Limited SME · KHERIAAUTO	Anchor investors (first half)	22 Oct 2026	5d	50% of anchor allocation
SpectraA Technology Solutions Limited SME · SPECTRAA	Anchor investors (first half)	22 Oct 2026	5d	50% of anchor allocation
Sonaselection India Limited MAINBOARD · SONA	Anchor investors (first half)	22 Oct 2026	5d	50% of anchor allocation
National Stock Exchange of India Limited MAINBOARD	Anchor investors (first half)	22 Oct 2026	5d	50% of anchor allocation
Axiom Gas Engineering Limited SME · AXIOMGAS	Anchor investors (first half)	23 Oct 2026	6d	50% of anchor allocation
Vivekanand Cotspin Limited SME	Anchor investors (first half)	26 Oct 2026	9d	50% of anchor allocation
FX Multitech Limited SME	Anchor investors (first half)	26 Oct 2026	9d	50% of anchor allocation
Robokidz Eduventures Limited SME	Anchor investors (first half)	26 Oct 2026	9d	50% of anchor allocation
Himalaya Nutravedics India Limited SME	Anchor investors (first half)	27 Oct 2026	10d	50% of anchor allocation
Varmora Granito Limited MAINBOARD · VARMORA	Anchor investors (first half)	27 Oct 2026	10d	50% of anchor allocation
Anand Seamless Limited SME	Anchor investors (first half)	27 Oct 2026	10d	50% of anchor allocation
Elevate Campuses Limited MAINBOARD · ELEVATE	Anchor investors (first half)	28 Oct 2026	11d	50% of anchor allocation
Unitec Fibres Limited SME	Anchor investors (first half)	28 Oct 2026	11d	50% of anchor allocation
Coreintegra Consulting Services Limited SME · COREIN	Anchor investors (first half)	28 Oct 2026	11d	50% of anchor allocation
Adroit Industries (India) Limited MAINBOARD · ADROITIND	Anchor investors (first half)	28 Oct 2026	11d	50% of anchor allocation
S.K.Offset Limited SME	Anchor investors (first half)	28 Oct 2026	11d	50% of anchor allocation
Liqvd Digital India Limited SME	Anchor investors (first half)	28 Oct 2026	11d	50% of anchor allocation
ArMee Infotech Limited MAINBOARD · ARMEE	Anchor investors (first half)	28 Oct 2026	11d	50% of anchor allocation
Swastika Infra Limited MAINBOARD · SWASTIKAIN	Anchor investors (first half)	28 Oct 2026	11d	50% of anchor allocation
Pooja Logistics Limited SME · POOJALOGIS	Anchor investors (first half)	28 Oct 2026	11d	50% of anchor allocation
Peshwa Wheat Limited SME	Anchor investors (first half)	29 Oct 2026	12d	50% of anchor allocation
Moneyview Limited MAINBOARD · MONEYVIEW	Anchor investors (first half)	29 Oct 2026	12d	50% of anchor allocation
A-One Steels India Limited MAINBOARD · AONESTEELS	Anchor investors (first half)	29 Oct 2026	12d	50% of anchor allocation
Roopa Screen Limited SME	Anchor investors (first half)	29 Oct 2026	12d	50% of anchor allocation
Runwal Enterprises Limited MAINBOARD · RUNWALENTR	Anchor investors (first half)	02 Nov 2026	16d	50% of anchor allocation
Dudani Retail Limited SME	Anchor investors (first half)	02 Nov 2026	16d	50% of anchor allocation
Acevector Limited MAINBOARD · ACEVECTOR	Anchor investors (first half)	02 Nov 2026	16d	50% of anchor allocation
German Green Steel & Power Limited MAINBOARD	Anchor investors (first half)	02 Nov 2026	16d	50% of anchor allocation
Bench Mark Infotech Services Limited SME · BMISL	Anchor investors (first half)	02 Nov 2026	16d	50% of anchor allocation
Himalayan Solar Limited SME · HIMALAYAN	Anchor investors (first half)	02 Nov 2026	16d	50% of anchor allocation
Orient Cables (India) Limited MAINBOARD · ORIENTCABL	Anchor investors (first half)	02 Nov 2026	16d	50% of anchor allocation
Sai Urja Indo Ventures Limited SME	Anchor investors (first half)	02 Nov 2026	16d	50% of anchor allocation
Shivchem Agro Limited SME	Anchor investors (first half)	03 Nov 2026	17d	50% of anchor allocation
Shah Investor's Home Limited MAINBOARD · SHAHINVEST	Anchor investors (first half)	03 Nov 2026	17d	50% of anchor allocation
SRIT India Limited MAINBOARD · SRIT	Anchor investors (first half)	03 Nov 2026	17d	50% of anchor allocation
Pind Hospitality Limited SME	Anchor investors (first half)	03 Nov 2026	17d	50% of anchor allocation
Acme Universal Safezone 9 Limited SME	Anchor investors (first half)	03 Nov 2026	17d	50% of anchor allocation
Black Opal Consultants Limited SME	Anchor investors (first half)	04 Nov 2026	18d	50% of anchor allocation
Vans Electroengineerings Limited SME	Anchor investors (first half)	04 Nov 2026	18d	50% of anchor allocation
Papadmalji Agro Foods Limited SME · PAPADMALJI	Anchor investors (first half)	04 Nov 2026	18d	50% of anchor allocation
Green Asia Impex Limited SME · GREENASIA	Anchor investors (first half)	04 Nov 2026	18d	50% of anchor allocation
Eventions Limited SME · EVENTIONS	Anchor investors (first half)	05 Nov 2026	19d	50% of anchor allocation
SJP Ultrasonic Limited SME	Anchor investors (first half)	05 Nov 2026	19d	50% of anchor allocation
Dove Soft Limited SME	Anchor investors (first half)	05 Nov 2026	19d	50% of anchor allocation
Sollfege Smart Electronics Limited SME	Anchor investors (first half)	05 Nov 2026	19d	50% of anchor allocation
Nityas Gems and Jewellery Limited MAINBOARD · NITYAS	Anchor investors (first half)	05 Nov 2026	19d	50% of anchor allocation
Omara Ventures India Limited SME	Anchor investors (first half)	05 Nov 2026	19d	50% of anchor allocation
Vishal Nirmiti Limited MAINBOARD · VNL	Anchor investors (first half)	05 Nov 2026	19d	50% of anchor allocation
EverestIMS Technologies Limited SME	Anchor investors (first half)	05 Nov 2026	19d	50% of anchor allocation
Shree TNB Polymers Limited SME	Anchor investors (first half)	05 Nov 2026	19d	50% of anchor allocation
TNA Solutions Limited SME	Anchor investors (first half)	06 Nov 2026	20d	50% of anchor allocation

The periods

Holder	Locked for	Notes
Anchor investors (first half)	30 days	Half of every anchor allocation unlocks 30 days after allotment. This is usually the first tranche of any size to become sellable.
Anchor investors (second half)	90 days	The remaining anchor holding. The 30/90 split was introduced in 2021 — before that the whole anchor book unlocked at once.
Pre-IPO shareholders (non-promoter)	180 days	Existing non-promoter shareholders — early investors, ESOP holders, institutions who bought before the issue. Often the largest single pool.
Promoter holding above minimum contribution	180 days	Whatever promoters hold beyond the 20% minimum contribution.
Promoter minimum contribution (20%)	18 months	The 20% of post-issue capital promoters must retain. Reduced from three years to eighteen months in 2022.

How these dates are worked out

Every date here is derived from the issue's allotment date and the periods SEBI sets in the ICDR regulations. Nothing is scraped, which means nothing here can go stale because a source changed — but it also means the dates are only as good as the allotment date we hold.

Where an allotment date is missing we count from two working days before listing, which is the usual gap, and the per-company page says so explicitly rather than presenting an estimate as a fact.

Two of these periods changed recently: the anchor lock-in was split into 30-day and 90-day tranches in 2021, and promoter minimum contribution was cut from three years to eighteen months in 2022. Older explanations of this subject are simply wrong about both.

IPO Lock-in Expiry Calendar

The periods

How these dates are worked out

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