Aerospace Stock Rally Extends to 500%: Will High-Stakes UK Transfer Pay Off?

The BSE 500 index was up just 0.05 per cent over the past year. Despite the broader market staying practically flat, Sigma Advanced Systems share price has seen a massive surge, with the stock trading higher by nearly 500 per cent over the same period on the back of strong operational execution.

Why is Sigma Advanced Systems Share Price Rallying?
Sigma Advanced Systems shares saw a positive move on Thursday, September 10, 2026, trading at Rs 775.05 at 9:41 AM, up 2.6 per cent from its previous close. The stock traded less than 1 per cent below its 52-week high of Rs 778.70. This positive sentiment follows the operational rollout of its new aerospace facility at Sri City in Andhra Pradesh, where production began just eight months after groundbreaking. The company has already manufactured and shipped its first batch of precision-machined aerospace components to Sigma UK for final verification before delivery to global customers.

According to management updates, this facility plays a key role in transferring qualified aerospace work from the UK to India. Once fully operational, Sigma expects to handle about 70 per cent of the manufacturing process for relevant work packages in India, significantly improving program economics. The company has also initiated the source-change approval process with Rolls-Royce Aerospace, linked to a major long-term agreement worth about Rs 3,800 crore.

Rapid Sri City Expansion to Fuel Operational Growth
The Sri City plant currently operates a 75,000 sq ft unit with an annual capacity of 100,000 machining hours. However, the site is designed to scale across a 500,000 sq ft campus to reach nearly 300,000 annual machining hours while adding critical aerospace processes over the next 12 months. Management targets an EBITDA margin improvement of 2–4 per cent by the end of FY27 and a further 4–6 per cent through FY28, driven by work transfers, dual sourcing, and operational efficiencies.

Global Aerospace Supply Chain Push Boosts Long-Term Outlook
Global aerospace original equipment manufacturers are increasingly relying on dual-shore manufacturing models to optimize cost structures without sacrificing quality. Sigma operates a dual India-UK platform through UK subsidiaries like Nasmyth and Bromford, supplying complex structural components and sub-assemblies to major international aviation programs.

At the same time, India is expanding its high-precision manufacturing and export capabilities. Located near four major shipping ports, the Sri City campus is projected to create over 500 specialized jobs over the next two to three years across precision engineering, fabrication, and specialized welding roles.
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About the Company:
Sigma Advanced Systems is a precision engineering company operating a dual-shore aerospace and defense platform across India and the UK. The company manufactures complex precision components, fabrications, and specialized sub-assemblies for global aerospace OEMs. Aerospace contracts form the core of its business, making up roughly 75–80 per cent of its total order book of over Rs 8,000 crore.