The Wire That Quietly Delivered 35% Revenue Growth

50 Years of Wires, and Suddenly Everyone Cares

Finolex Cables has been quietly making wires and cables for over five decades. Not the exciting kind of quiet — the kind where every year, reliably, the country’s homes, factories, cars, and telecom towers consume more of what they make. No metaverse pivot. No token launch. Just copper, fibre, and compounding.

And yet Q3 FY26 delivered something worth sitting up for. Revenue hit ₹1,599 crore — a 35% surge year-on-year. Volume growth was the headline driver, not just price hikes. Auto cables grew 42%. The newly commissioned solar cable line is already running at 80–85% utilization. And in the optical fiber world, the company is about to become only the second domestic manufacturer of glass preforms in India — currently a market where Sterlite plays monopoly landlord.

Meanwhile, outside the door, Birla Group is setting up a wire factory arriving sometime next calendar year, and Adani has made an “initial announcement” that even management couldn’t date confidently (somewhere between 2027 and 2029, they said, with the confidence of someone reading a weather forecast). So the competitive landscape is changing — but right now, in Q3 FY26, Finolex is running faster than the threats arriving behind it.

This is also a company with practically zero debt, ₹5,703 crore in net worth, and an interest coverage ratio of 491x. Which means their debt is doing roughly what an extra in a Bollywood movie does — technically present, completely irrelevant.

They Make the Stuff That Makes Everything Else Work

Simple enough for a child to understand: Finolex makes wires and cables. Complex enough to run ₹6,000 crore in annual revenues: they have five manufacturing sites, 28 depots, ~50,000 SKUs, 5,000+ channel partners, and 1,75,000+ retailers. Kartik Aaryan and Kiara Advani have both endorsed the brand, because apparently even Bollywood stars understand the importance of not having your house catch fire.

Revenue breakdown as of Q2 FY25: Electrical Cables at 84% of revenue, Communication Cables at 10%, Copper Rods at 1%, and Other Products at 5%. The electrical cable business includes everything from housing wires to industrial cables to the solar and auto cable lines that are growing rapidly right now.

The optical fiber and communication cable side has historically been a drag — margins compressed, global fiber prices had crashed. That story is now reversing fast. With fiber prices moving from sub-$3 to near $5 per unit, and a global supply shortage underway, the OFC segment is transitioning from albatross to potential hero. The preform plant — which will make Finolex the second domestic manufacturer of glass preforms in India — is about to commission. The fiber draw capacity is being expanded from 4 million km to 8 million km by end of Q1 FY27.

Q3 FY26: The Numbers (Quarterly Results)