Defence Stocks: Zen Technologies and Mazagon Dock Shipbuilders Share Price Falls Over 10%; Here’s Why

By Ventura Research Team 3 min Read May 4, 2026

Zen Technologies and Mazagon Dock shares fall after Q4 FY26 results

Summary:
Defence stocks came under pressure on 4 May 2026 after Zen Technologies and Mazagon Dock announced their Q4 FY26 earnings. Zen Technologies reported a sharp drop in revenue, EBITDA, and profit, while Mazagon Dock faced investor concerns around slowing margins and a weaker-than-expected order book. The sell-off highlights how market expectations can outweigh headline earnings growth.

Indian markets were in positive territory on Monday, 4 May 2026, but the broader gains did not reach every corner of the market. Defence-linked stocks, in particular, saw some notable selling pressure after two companies, Zen Technologies and Mazagon Dock Shipbuilders, announced their Q4 FY26 numbers over the weekend. Both stocks fell sharply, even as the major indices stayed in the green.

Zen Technologies, which makes anti-drone systems and defence training solutions, dropped over 10% in Monday's session. The selling came on high volume, over 16 lakh shares traded on the NSE in just the first two hours, the highest activity since 21 April, and well above both the 10-day and 30-day average volumes. When volume spikes alongside a sharp price fall, it generally reflects conviction on the selling side rather than a light dip.

The trigger was straightforward. The Q4 FY26 results were weak by any measure. Revenue from operations fell 45.2% YoY to ₹178.08 crore, compared to ₹324.97 crore in Q4 FY25. EBITDA declined 54.7% YoY to ₹73.69 crore from ₹162.74 crore in the same quarter last year. Net profit dropped 68.8% YoY to ₹31.53 crore from ₹101.04 crore in Q4 FY25. All three key financial metrics moved significantly in the wrong direction compared to a year ago.

Management Highlights: Delay in Order Conversion

Management did not sidestep the disappointment. They acknowledged that FY26 saw delays in order conversion that stretched beyond what the company had originally expected. That said, they were clear that the execution picture for FY27 looks more defined now. Zen Technologies closed FY26 with a consolidated order book of ₹1,336 crore, having added ₹431 crore in fresh order inflows during Q4 FY26 alone. The management pointed out that most of the current order book is slated for execution in FY27, which is where they expect the financial performance to recover.

There is a broader story here as well. The management noted that the company has gone through a meaningful structural shift over the past two years. Zen now has five distinct defence capabilities ready for deployment: training simulation systems, counter-drone solutions, automated weapons stations, combat robotics, and drones. The wider product base, combined with subsidiary contributions to consolidated revenue during the year, gives the company a broader foundation than it had before. Whether FY27 delivers on that promise is what investors will be watching.

Mazagon Dock Shipbuilders fell over 4% on Monday, and this one is a slightly more complicated story because the actual quarterly numbers were not bad on a YoY basis.

Revenue from operations in Q4 FY26 came in at ₹3,850 crore, up 21.3% YoY from ₹3,174 crore in Q4 FY25, and up 6.9% sequentially from Q3 FY26. Total income stood at ₹4,134 crore, rising around 19.5% YoY. EBITDA came in at ₹826 crore, up 103.4% YoY. Net profit was ₹674 crore, up 107.4% YoY. On paper, those are solid YoY improvements.

But sequentially, the picture shifted. EBITDA fell 28.1% from ₹1,149 crore in Q3 FY26. Net profit declined 23.4% QoQ. Operating margin moderated to 16% in FY26 from 17% in FY25, a 100 basis point contraction.

For the full year, the company reported revenue from operations of ₹13,006 crore, up 13.8% from ₹11,432 crore in FY25. Total income rose 12.8% to ₹14,146 crore. PAT for the year grew 6.8% to ₹2,578 crore from ₹2,414 crore in FY25. EBITDA grew 6.4% YoY to ₹3,405 crore.

Mazagon Dock: Order Book Gap Is the Real Issue

The YoY growth numbers look reasonable on their own. The problem, and likely the main reason for Monday's sell-off, is the order book.

Mazagon Dock's total order book stood at ₹20,535 crore as of 31 March 2026. The largest single component is the P17A Stealth Frigates programme, which accounts for a balance order value of ₹8,257 crore; roughly 40% of the total book.

That number sits uncomfortably against what management had previously guided. During the Q2 FY26 earnings call, when the order book was around ₹27,000 crore, management had indicated it expected the book to be "in excess of ₹1 lakh crore" by FY27. During the Q4 FY25 concall, guidance was even more ambitious, management had spoken of the P-75 additional submarines and P-75(I) submarine contracts potentially being signed in FY26, which, if both came through, could have taken the order book past ₹1.25 lakh crore.

Management had been explicit that achieving such numbers depended on the signing of both contracts. But markets had priced in at least some progress toward that trajectory. With the order book closing FY26 at ₹20,535 crore, the gap between expectation and reality is visible enough to cause concern.

The Q4 sequential decline in earnings and the margin compression added to the unease. Mazagon Dock is deeply embedded in India's naval shipbuilding programme, but the near-term order book position has created a gap that the market is now pricing in.