Why did this ASX defence stock jump 5% before entering a trading halt?

Electro Optic Systems Holdings Ltd (ASX: EOS) shares were on the move on Thursday before being placed in a trading halt.

The defence tech stock climbed 4.83% to $9.34 during the opening minutes of trade.

However, investors didn’t have long to buy or sell the stock, with trading paused shortly after the market opened.

EOS shares are relatively flat since the start of 2026 but remain almost 240% higher than this time last year.

So, what announcement is the company preparing to make?

Why are EOS shares halted?

According to the release, EOS called for the trading halt while it puts the finishing touches on two announcements.

The first relates to a material contract for the sale of its remote weapon systems (RWS).

These systems can be fitted to military vehicles and allow weapons to be operated from inside the vehicle instead of leaving a solider exposed.

The other announcement is linked to a joint venture that EOS is working to establish.

The company has not yet revealed the customer, the size of the contract or who it plans to team up with.

EOS said the details are still being worked through and asked for the halt so investors would not be trading without the full information.

The shares should begin trading again once the announcements are released or when the market opens on Monday, 22 June.

Defence demand remains strong

The trading halt comes after a busy few months for EOS, with defence spending still rising across several markets.

Earlier this week, the company said conflicts in Europe and the Middle East were continuing to drive enquiries across its product range.

That includes RWS, high-energy laser weapons (HELW), counter-drone equipment and its space systems division.

EOS also recently secured a US$5 million order from L3Harris Technologies in the United States.

The equipment will be made here in Australia and delivered during 2026.

The company expects its existing operations, excluding MARSS, to generate between $240 million and $270 million of revenue this year.

Its combined order book with MARSS stood at $726 million in May, with 60% to 80% expected to turn into revenue across 2026 and 2027.

What should investors expect?

Investors will be looking for the size of the RWS contract and when the revenue is expected to start flowing through.

There should also be plenty of interest in the joint venture, including who EOS is partnering with and what the new operation will involve.

Nonetheless, after the stock’s huge run over the past year, investors will be expecting plenty from both announcements.

The post Why did this ASX defence stock jump 5% before entering a trading halt? appeared first on The Motley Fool Australia.

More reading

• Why Actinogen, Devex, EOS, and Web Travel shares are charging higher today
• SpaceX climbs nearly 20% after its IPO. Here’s why that is good news for these ASX shares
• Why AIC Mines, EOS, Flight Centre, and Nickel Industries shares are racing higher today
• EOS shares rocket 9% on BAE Systems deal
• Why Aussie Broadband, Coles, EOS, and Santos shares are falling on Monday

Motley Fool contributor Aaron Teboneras has no position in any of the stocks mentioned. The Motley Fool Australia’s parent company Motley Fool Holdings Inc. has positions in and has recommended Electro Optic Systems. The Motley Fool Australia has no position in any of the stocks mentioned. The Motley Fool has a disclosure policy. This article contains general investment advice only (under AFSL 400691). Authorised by Scott Phillips.