These shares have doubled in 12 months: Is it too late to invest?

The Appen Ltd (ASX:APX) share price and two others have more than doubled in value in 12 months. Is it too late to invest?

a woman

The recent market volatility means that the All Ordinaries (Index: ^AXAO) (ASX: XAO) is now down 0.6% over the last 12 months excluding dividends.

While this is very disappointing, it hasn't stopped some shares on the index from doubling in value during the period.

Three that have achieved this milestone are listed below. Is it too late to invest?

The Appen Ltd (ASX: APX) share price is up 112% since this time last year despite its recent pullback. The global leader in the development of high-quality, human annotated datasets for machine learning and artificial intelligence caught the eye of investors this year after it delivered a 106% increase in half-year revenue to $152.8 million.

This was driven by a combination of strong organic growth and the benefits of its Leapforce acquisition. The good news is that management expects the strong form to continue in the second half and believes strong tailwinds are fuelling the need for AI data. This has positioned it perfectly for long-term growth in my opinion, which I think makes it a great buy and hold option even after this impressive share price rally. Fellow tech star Afterpay Touch Group Ltd (ASX: APT) has also rocketed higher over the period, clocking a gain of 125%.

The Aurelia Metals Ltd (ASX: AMI) share price rose a further 3.5% today to bring its 12-month return to a whopping 202%. Aurelia is a New South Wales based gold producer focused on the production and ongoing exploration of the Hera-Nymagee Project. This project includes the high-grade gold and base metal Hera deposit and the emerging high-grade copper discovery at the nearby Nymagee copper deposit.

This year management expects gold production to increase again to between 115,000 and 130,000 ounces at an all-in sustaining cost of between A$900 and $1,000 an ounce. While I'm staying away from gold miners, I do think Aurelia is worth a closer look if you're interested in gaining exposure to the precious metal.

Motley Fool contributor James Mickleboro has no position in any of the stocks mentioned. The Motley Fool Australia owns shares of AFTERPAY T FPO and Appen 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.

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