Caliber Mining & Logistics opened its ₹450 crore IPO today, July 17, and by the time it did, the grey market had already made up its mind about it. The premium had been climbing for three straight days before the first bid was even placed. That alone tells you something worth digging into, so let's go through the numbers properly instead of just repeating the headline GMP figure.

The IPO in one table

IPO opens	July 17, 2026
IPO closes	July 21, 2026
Price band	₹402 – ₹424 per share
Lot size	35 shares (₹14,840 minimum at the upper band)
Issue size	₹450 crore (fresh issue ₹400 crore + OFS ₹50 crore)
Allotment	July 22, 2026
Listing date	July 24, 2026, on BSE and NSE
Registrar	KFin Technologies Ltd.
Lead manager	DAM Capital Advisors Ltd.

Full details, live status, and the application link are on the Caliber Mining & Logistics IPO page.

What the company actually does

Caliber Mining & Logistics has been around since 2014, running out of Chandrapur in Maharashtra with over 5,500 employees on its books. It's not a pure mining company and not a pure logistics company either, it sits in the contract layer between the two. It extracts coal, clears overburden, loads and unloads it, moves it by road, coordinates rake loading onto rail wagons, and trades coal on the side. Its customers are mostly subsidiaries of Coal India, spread across Maharashtra, Chhattisgarh, and Madhya Pradesh, with some iron ore work mixed in too.

That client concentration is worth sitting with for a second. When your revenue depends heavily on a handful of Coal India subsidiaries renewing contracts, your growth story is really a story about how well those relationships hold up, not just about coal demand in general.

The financials: growth is real, but so is the debt

Here's the three-year trend, in crores:

Period	Revenue	EBITDA	PAT	Net worth	Borrowings
FY2024	957.92	243.14	95.90	295.93	717.88
FY2025	1,435.57	349.77	131.55	489.30	649.27
FY2026	1,684.66	430.92	157.90	647.54	1,057.61

Revenue jumped nearly 50% from FY2024 to FY2025, then grew a more moderate 17% into FY2026. Profit followed a similar path, up 37% and then 20%. EBITDA margins have held fairly steady around 25% across all three years, so the growth isn't coming from squeezing more margin out of existing contracts, it's coming from doing more volume.

The part that caught my eye is borrowings. The company brought debt down from ₹717.88 crore to ₹649.27 crore between FY2024 and FY2025, then pushed it right back up to ₹1,057.61 crore in FY2026, an increase of over 60% in a single year. Debt-to-equity for FY2026 works out to 1.63, up from roughly 1.33 the year before. Part of the fresh issue money (₹208 crore) is earmarked for repaying this borrowing, and another ₹167 crore is going toward new machinery, which suggests the company has been funding its equipment expansion with debt ahead of the IPO and is now using listing proceeds to clean that up. Not alarming on its own for a capital-heavy contract mining business, but it's the kind of thing that deserves more attention than it usually gets in the excitement around GMP numbers.

What you're paying for

At the upper price band, the post-IPO market cap works out to about ₹3,225 crore against a post-issue P/E of 17.55 and a price-to-book ratio of 7.33. A price-to-book above 7 is rich for a contract mining and logistics operator, this isn't a business with proprietary tech or brand moat, it runs on machinery, contracts, and execution. Promoter holding drops from 90.91% to 82.93% after the issue, meaning the public float stays thin at just over 17%. A small free float tends to make the stock more volatile in both directions once it lists, which is also part of why grey market premiums on issues like this can move fast.

Now, the GMP, which is really what everyone's here for

The grey market premium on this one has had a clear direction all week. It sat around ₹60 on July 14, moved up to somewhere between ₹86 and ₹98 by July 15, and by July 16 it was quoted between ₹100 and ₹102 depending on the source. As of this writing, Caliber Mining & Logistics IPO GMP stands at ₹102, roughly 24% over the upper price band of ₹424. If that premium holds through listing, it implies a listing price near ₹526.

A few things are worth keeping in mind before treating that number as a forecast. GMP is an unofficial, unregulated figure that reflects sentiment among grey market traders, not a guaranteed outcome. It moved up steadily in the days right before the anchor round and the IPO opening, which is common when demand chatter builds, but it can just as easily reverse once actual subscription numbers come in over the next five days. The gap between different trackers, ₹86 on one site and ₹102 on another for the same day, is itself a reminder that this is sentiment, not a settled price. Track the live number and its day-by-day movement on the Caliber Mining & Logistics GMP page, since it's updated more often than any single article can keep up with.

Subscription status

Bidding only opened today, so category-wise numbers for retail, NII, and QIB aren't in yet. That data usually starts to matter more than GMP once it's available, since actual demand from institutional investors tends to be a better read on how the listing will go than grey market chatter. Keep an eye on the live subscription page as the numbers roll in through July 21.

So, worth applying?

There's a genuine growth story here: real revenue expansion, a steady margin profile, and an established base of Coal India-linked contracts that aren't going away overnight. The GMP trend has been consistently positive rather than a one-day spike, which usually reflects more than pure noise. But the valuation isn't cheap on a book-value basis, the debt load ticked back up right before listing, and a thin public float means price swings after listing could go either way just as easily as they go up. None of this is investment advice, and I'm not a financial advisor, this is a rundown of the numbers so you can weigh the risk yourself against your own portfolio and risk appetite. If you do decide to apply, the lot size is 35 shares and the window closes July 21.