Microchip production
Adobe
The Market Online - At The Bell

Join our daily newsletter At The Bell to receive exclusive market insights

Hotly watched tech stock 4DS Memory (ASX:4DS), long promising the market it has what it takes to revolutionise microchip technology wholemeal, has sunk nearly -60% on Monday after it declared a testing failure.

Listen to the HotCopper podcast for in-depth discussions and insights on all the biggest headlines from throughout the week. On Spotify, Apple, and more.

The driving force behind that sell-off can possibly be explained in one line part of 4DS’s Monday disclosure: “This will likely cause a delay to the development pathway for the Company’s Interface Switching ReRam Technology.”

In other words, the company’s entire overall deal is going to be delayed.

The technical explanations behind this testing round failure are, at best, terribly dry – but it’s worth noting this “Sixth Lot” testing was supposed to follow a “Fifth Lot” test, where issues like this should have been identified.

“The initial analysis of the wafers within the entire Lot indicates that the necessary process modifications and optimisations introduced into the Sixth Platform Lot have not yielded the expected electrical testing and characterisation results,” 4DS wrote.

More market news

Tariffs not so scary: “Soft” U.S. inflation actually a good thing for Oz trade

Meet GeoGeorge: The HotCopper poster so accurate he got hired as an analyst

The company was keen to remind investors that testing will still continue and that Sixth Lot tests are ongoing, but with mandatory disclosure laws in Australia what they are, it’s clear what the market’s thinking.

That’s also evident in the share price.

“The company currently has approximately $10 million in available funds, so is well funded,” the technology company added.

4DS last traded at 2.7cps.

Join the discussion: See what HotCopper users are saying about 4DS Medical and be part of the conversations that move the markets.

The material provided in this article is for information only and should not be treated as investment advice. Viewers are encouraged to conduct their own research and consult with a certified financial advisor before making any investment decisions. For full disclaimer information, please click here.

4DS by the numbers
More From The Market Online
Exit sign

Lynas Rare Earths’ CEO out the door even as 1Y returns up +110%

Lynas Rare Earths (ASX:LYC) has revealed to the market on Tuesday that its chief executive officer, Amanda Lacaze, is
Cambodia flag

The first IPO of 2026 has landed. It’s exploring for gold, but nobody’s paying attention

Spare a thought for Unity Metals, the first CY26 IPO to hit the ASX boards –…
War stock concept

Electro Optic back to $11/share as clear winner in the DroneShield vs EOS war

The defence thematic is back, baby, and it leaves us asking about the Electro Optic Systems…
Market Close Graphic

Market Close: Trump’s Powell arrest threat a non-event; gold charges up ASX & EOS back to $11

Good Afternoon and welcome to HotCopper’s Market Close for Tuesday of Week 3 of 2026, I’m Jon Davidson.