'Pump & dump' of ASX shares could lead to jail, ASIC warns

ASIC, worried about GameStop-style rallies happening in Australia, warns investors to avoid market manipulation, which is a serious criminal offence.

| More on:
A hand descends above a share graph indication market manipulation

Image source: Getty Images

You’re reading a free article with opinions that may differ from The Motley Fool’s Premium Investing Services. Become a Motley Fool member today to get instant access to our top analyst recommendations, in-depth research, investing resources, and more. Learn More

Australia's corporate watchdog has warned that investors using social media to drum up a 'pump and dump' of ASX shares could end up in jail.

The Australian Securities and Investments Commission (ASIC) announced Thursday that it was seeing "a concerning trend" of people conducting such online campaigns, which could amount to illegal market manipulation.

"'Pump and dump' activity occurs when a person buys shares in a company and starts an organised program to seek to increase (or 'pump') the share price. They do this by using social media and online forums to create a sense of excitement in a stock or spread false news about the company's prospects," stated the commission.

"They then sell (or 'dump') their shares and take a profit, and other shareholders suffer as the share price falls."

A classic recent example has been in the US, where GameStop Corp (NYSE: GME) multiplied 20 times in January and has been on a rollercoaster since.

It seems ASIC is worried about copycat campaigns targeting ASX shares.

'Blatant attempts to pump share prices'

ASIC stated it has witnessed on social media "blatant attempts to pump share prices" of certain stocks, which set up a particular time to buy — then a target price to dump.

"In some cases, posts on social media forums may mislead subscribers by suggesting the activity is legal," the commission stated.

"If an investor decides to buy shares as part of one of these campaigns, they may become the victim. The people behind the campaign may start dumping their shares and taking profits before they reach the target price."

ASIC warned that market manipulation was illegal, and a conviction could result in 15 years' imprisonment and a fine of more than $1 million.

Warning: ASIC is watching 

Commissioner Cathie Armour said ASIC had been "working closely" with market operators to catch pump and dump campaigns.

The authority performs data matching from multiple sources to find networks of investors conspiring together.

"We expect anyone involved in these campaigns to recognise the potential impact on market integrity and to be aware ASIC monitors all trading on the ASX equity market on a real-time basis," she said.

"We will continue to target actions that threaten the integrity of markets and to take enforcement action where appropriate."

Armour added that brokers, which ASIC calls market participants, should take "active steps" to stop stock manipulation before it starts.

Signs of such campaigns could include groups of clients trading in the same ASX share at the same time in the same direction.

"They may have opened accounts at a similar time, been referred by the same person, have the same account contact details, or transfer funds between themselves."

ASIC stated it expected brokers to promptly report suspicious activity.

ASX-listed companies were also warned to report any strange trading of their shares, either to ASX Ltd (ASX: ASX) or ASIC. This included sudden but unexplained price moves.

Motley Fool contributor Tony Yoo has no position in any of the stocks mentioned. The Motley Fool Australia's parent company Motley Fool Holdings Inc. has no position in any of the stocks mentioned. 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 Bruce Jackson.

More on Share Market News

Fancy font saying top ten surrounded by gold leaf set against a dark background of glittering stars.
Share Gainers

Here are the top 10 ASX 200 shares today

The ASX was back in the green this Wednesday.

Read more »

Businessman working and using Digital Tablet new business project finance investment at coffee cafe.
Broker Notes

Buy, hold, sell: How does Morgans rate these ASX shares?

Morgans has been looking at a couple of popular shares.

Read more »

A man pulls a shocked expression with mouth wide open as he holds up his laptop.
Broker Notes

Why this beaten down ASX 200 stock could rise 50%

This stock could be dirt cheap according to analysts at Bell Potter.

Read more »

A male sharemarket analyst sits at his desk looking intently at his laptop with two other monitors next to him showing stock price movements
Share Market News

4 pros and cons of buying the Vanguard Australian Shares ETF (VAS) in 2026!

This popular ETF isn't a slam dunk...

Read more »

A young woman holding her phone smiles broadly and looks excited, after receiving good news.
Share Gainers

Why 4DMedical, Regis Resources, Unico Silver, and WiseTech Global shares are pushing higher

These shares are having a good time on hump day. But why?

Read more »

Frustrated stock trader screaming while looking at mobile phone, symbolising a falling share price.
Share Fallers

Why Bellevue Gold, Harvey Norman, Karoon Energy, and Westpac shares are falling today

These shares are having a tough time on hump day. But why?

Read more »

woman testing substance in laboratory dish, csl share price
Share Market News

After a 73% surge this ASX healthcare share looks far from done

Brokers are upbeat, and some see possible gains of 90% in 2026.

Read more »

A man in his 30s with a clipped beard sits at his laptop on a desk with one finger to the side of his face and his chin resting on his thumb as he looks concerned while staring at his computer screen.
Share Market News

Magellan Financial Group dips as AUM slips in December quarter

Magellan Financial Group's AUM declined to $39.9 billion at December 2025, with net outflows for the quarter.

Read more »