Appen and these ASX shares have more than doubled in value in just 12 months

The Appen Ltd (ASX:APX) share price is one of three to have more than doubled in value in just 12 months…

| More on:
a woman

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

Earlier today I looked at three shares that have lost half of their value over the last 12 months.

Thankfully, not all shares have performed as poorly as these. The three listed below have more than doubled in value over the last 12 months. Is it too late to invest?

The Appen Ltd (ASX: APX) share price has rocketed a massive 155% since this time last year. Investors have been buying the shares of the global leader in the development of high-quality, human annotated datasets for machine learning and artificial intelligence due to its impressive performance in FY 2018 and positive outlook. Thanks to the accelerating AI market and the high and growing demand for quality training data, Appen achieved underlying EBITDA of $71.3 million in FY 2018. This was an increase of 153% on FY 2017's result. Looking ahead, management expects the increasing demand for its services to result in further strong growth in FY 2019. Whilst its shares look fully valued now, I would still be a buyer if you're prepared to hold its shares for the long term.

The Mount Gibson Iron Limited (ASX: MGX) share price has risen a sizeable 145% over the last 12 months. The majority of this gain has been made over the last few months thanks to a material rise in iron ore prices following supply disruptions in both Brazil and Australia. As I feel that iron ore prices may now have peaked, I wouldn't be a buyer of its shares at this point.

The Pro Medicus Limited (ASX: PME) share price has risen a massive 123% since this time last year. The healthcare technology company's shares have been on a tear since the release of its half year results in February. During the first half of FY 2019 Pro Medicus posted a 59.4% increase in half year revenue to $25.3 million and a 79.9% jump in underlying net profit after tax to $9.2 million. Strong demand for its popular Visage health imaging software in all its key markets drove the impressive result. I expect more of the same in the second half and beyond, making Pro Medicus a great buy and hold option.

James Mickleboro has no position in any of the stocks mentioned. The Motley Fool Australia's parent company Motley Fool Holdings Inc. owns shares of and recommends Pro Medicus Ltd. The Motley Fool Australia owns shares of Appen Ltd. The Motley Fool Australia has recommended Pro Medicus Ltd. We Fools may not all hold the same opinions, but we all believe that considering a diverse range of insights makes us better investors. The Motley Fool has a disclosure policy. This article contains general investment advice only (under AFSL 400691). Authorised by Scott Phillips.

More on Share Gainers

An old-fashioned panel of judges each holding a card with the number 10
Share Gainers

Here are the top 10 ASX 200 shares today

It was a happy end to the trading week this Friday.

Read more »

Excited couple celebrating success while looking at smartphone.
Healthcare Shares

Up 680% since July, here's why 2025 was a breakout year for this hot ASX stock

With consistent contract wins, FDA clearance, and backing from Pro Medicus, 4D Medical is showing that there is a commercial…

Read more »

A bearded man holds both arms up diagonally and points with his index fingers to the sky with a thrilled look on his face over these rising Tassal share price
Share Gainers

4 ASX 200 stocks smashing the benchmark this week

Investors have been piling into these four ASX 200 stocks this week. Let’s see why.

Read more »

Man drawing an upward line on a bar graph symbolising a rising share price.
Share Gainers

Why Bendigo Bank, NextDC, Nuix, and Vulcan Energy shares are rising today

These shares are ending the week on a high. But why?

Read more »

Girl with painted hands.
Share Gainers

Here are the top 10 ASX 200 shares today

It was a happy Thursday for ASX investors.

Read more »

Excited couple celebrating success while looking at smartphone.
Share Gainers

Why BHP, DroneShield, Lotus Resources, and Nuix shares are pushing higher today

These shares are having a better day than most on Thursday. But why?

Read more »

Three children wearing athletic short and singlets stand side by side on a running track wearing medals around their necks and standing with their hands on their hips.
Share Gainers

Here are the top 10 ASX 200 shares today

It was a happy hump day for the ASX.

Read more »

A man sees some good news on his phone and gives a little cheer.
Share Gainers

Why 4DMedical, Dateline, Predictive Discovery, and Wildcat shares are racing higher

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

Read more »