What does the Optus fumble mean for ASX telco shares?

Experts are already tallying up the numbers on how much Optus' troubles could boost rivals.

| More on:

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

As Optus begins to pick up the pieces after its 14-hour-long outage on Wednesday, pundits are analysing what the debacle means for rival ASX telco shares.

Laying claim to around 10 million customers nationwide, Optus ranks second in market share at around 31%. However, the telecommunications company may see its share of the pie shrink as competitors capitalise on its recent mishap.

A man pumps fist while using mobile phone in the street.

Image source: Getty Images

Sales surge for ASX telco shares at Optus' cost

Optus has garnered unwanted attention only a year after a damaging data breach.

According to subsequent reports, around 10% of Optus customers switched networks after the cyber attack. If I've done my math correctly, that means the large majority (90%) stuck with the Singtel-owned network operator.

Yet, it seems Wednesday's outage is the straw that broke the camel's back for some who gave Optus a second chance.

As reported by 9 News, TPG Telecom Ltd (ASX: TPG) — and its various brands — experienced its busiest sales day in the last year. A spokesperson from Vodafone (a subsidiary of TPG) noted a four-fold increase in activity amid Optus' network nightmare.

ASX:TPG
$4.08 $0.03 (0.6%) 8 April 2026 at 2:41:21 pm AEST

Likewise, the mobile offering from Kogan.com Ltd (ASX: KGN) — aptly named Kogan Mobile — reported a 400% rise in eSim sales on Wednesday. A Kogan spokesperson said, "It was actually Kogan Mobile's highest volume of eSim sales in a day this financial year."

ASX:KGN
$4.05 $0.10 (2.5%) 8 April 2026 at 2:40:59 pm AEST

What about Optus' biggest competitor, Telstra Group Ltd (ASX: TLS)? Analysts at JP Morgan believe even if 2.5% of Optus customers switch to Telstra, the larger ASX telco share could see its earnings before interest, taxes, depreciation, and amortisation (EBITDA) boosted by $125 million in FY25.

The Telstra share price lifted 1.29% amid the mid-week fiasco.

Will the big contracts cut the cord?

A significant risk (or potential reward for competing ASX telco shares) still hangs in the air for Optus.

While an outflow of everyday customers would hurt, the most devastating fallout for the Singaporean telco could be the possible loss of corporate and government contracts. These include deals with the Department of Defence, major banks, and the South Australian Government.

We're talking big contracts here. For example, Optus won a contract for satellite connectivity last year with the Department of Defence worth $405 million.

This could present an enormous opportunity for ASX telco shares if they snatch these often higher margin contracts off of Optus. However, nothing has materialised yet, with much of the situation still unfolding.

Motley Fool contributor Mitchell Lawler 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 Kogan.com. The Motley Fool Australia has positions in and has recommended Telstra Group. The Motley Fool Australia has recommended Kogan.com and Tpg Telecom. The Motley Fool has a disclosure policy. This article contains general investment advice only (under AFSL 400691). Authorised by Scott Phillips.

More on Communication Shares

A couple makes silly chip moustache faces and take a selfie on their phone.
Communication Shares

How high can Telstra shares really climb from here?

Brokers don't expect a surge, but rather a slow grind.

Read more »

A smiling businessman in the city looks at his phone and punches the air in celebration of good news.
Communication Shares

$8,000 invested in Telstra shares 1 month ago is now worth…

The telco has enjoyed a good share price rally over the past year.

Read more »

A woman in a red dress holding up a red graph.
Communication Shares

After a big acquisition what are Nine Entertainment shares worth?

The company has made a major foray into outdoor advertising.

Read more »

A man casually dressed looks to the side in a pensive, thoughtful manner with one hand under his chin, and holding a mobile phone in his other hand.
Communication Shares

Is Telstra stock a buy at $5.37 a share?

Telstra shares haven't been this high since 2017.

Read more »

Young couple standing next to a sold sign after buying a house.
Communication Shares

Are the glory days over for REA shares?

The key will be how quickly the property market bounces back.

Read more »

A kid and his grandad high five after a fun game of basketball.
52-Week Highs

Telstra just hit a 10-year high. Has this ASX income giant still got more to give?

Telstra’s breakout to a multi-year high is turning heads.

Read more »

A gavel is placed on a stand on a desk with a legal representative wearing a suit in the background.
Communication Shares

The Kyle and Jackie O saga continues, with a massive new legal claim filed

ARN Media has fielded its second massive legal claim in as many weeks.

Read more »

Five young people sit in a row having fun and interacting with their mobile phones.
Communication Shares

Forget Telstra shares! Buy this fast-rising ASX 200 telco stock instead

A top fund manager expects this surging ASX 200 telco stock could deliver more earnings upgrades.

Read more »