Sterlite Technologies shares hit all-time high, stock skyrockets 608% in 2026; here is what’s driving the rally on Monday

The optical fibre cable maker signed a long-term supply agreement from a hyperscaler firm worth $288 million. The international order is expected to be completed in three calendar years from CY27 to CY29. The deadline can be extended by a further two years with mutual consent of the parties, Sterlite Tech said in a regulatory filing.

The order includes allocation of high-density optical fibre cable products, which will be supplied as per customer specifications for each calendar year (CY) from 2027 to 2029. “The agreement establishes a reciprocal risksharing framework by defining mutual, capped financial liabilities for both parties in the event of demand shortfalls or supply capacity shortages,” Sterlite Technologies said.

The firm further said that the purchase orders will be released periodically during the contract period.

Last week, the company also said that it has moved a significant share of its electricity sourcing away from conventional fossil-fuel-based grid power to ‘100% Green Power’ generated from wind and solar sources. The transition covers four of the company’s four manufacturing plants in Chhatrapati Sambhaji Nagar (Aurangabad), Maharashtra.

In August, Sterlite Tech had also bagged another order worth $210 million for a supply agreement of high-density optical fibre cable to an international telecom infrastructure company.

Sterlite Tech Q1 earnings

For Q1 FY27, Sterlite Technologies had reported the highest-ever revenues of ₹1,910 crore and EBITDA of ₹397 crore, a year-on-year (YoY) growth of nearly 87% and 184%, respectively.

At the end of the quarter, Sterlite’s open order book stood at ₹18,618 crore.

The firm has also reported a robust EBITDA margin of 20.8% in Q1 FY27, the highest level achieved in nearly 20 quarters, driven by an improved product mix and operating leverage.

Sterlite Tech share price trends

At 10:45 AM, Sterlite Technologies shares were trading at ₹729.4 apiece on the National Stock Exchange, rising 0.78%.

From the beginning of the year, Sterlite Technologies shares have skyrocketed nearly 608%. Over a month’s time, the stock has soared 30%, while for a six-month period, it has zoomed 321%.

According to NSE data, as of August 31, 2026, the company has a total market capitalisation of ₹37,268.84 crore.