Australian billionaires are well known for investing. While some have inherited their fortunes, others have founded and scaled huge businesses from the ground up. What they all have in common is that they all rely on strategic investing to multiply and protect their assets.

Some invest in safe-haven stocks and assets, while others are willing to take on more risk in the hope of hitting the jackpot.

The Australian recently compiled a list of 10 Australian billionaires, and the stocks they like to invest their money into.

Gina Rinehart

The Australian heiress, billionaire mining magnate, and businesswoman has built a $2 billion stock portfolio through Hancock Prospecting. It consists mainly of mining stocks and exchange-traded funds. The company owns shares in US-listed stocks such as Tesla Inc (NASDAQ: TSLA), Fox Corp (NASDAQ: FOX), and Trump Media & Technology Group Corp (NASDAQ: DJT).

Hancock Prospecting also has exposure in Australian markets. Hancock is a major shareholder in gold producer Ballard Mining Ltd (ASX: BM1), which floated on the ASX on July 14, 2025. 

Gerry Harvey

Australian entrepreneur and executive chairman of Harvey Norman Holdings Ltd (ASX: HVN), Gerry Harvey, backs New-Zealand based Briscoe Group Ltd (ASX: BGP). Briscoe comprises homewares stores and now Rebel Sports outlets. 

Bruce Mathieson

Bruce Mathieson is known for his influence in the Australian pub, hotel, and gambling sectors. 

According to The Australian, Mathieson has some of his fortune locked up in Endeavour Group Ltd (ASX: EDV) shares, shares in Star Entertainment Group Ltd (ASX: SGR), and shares in Mayne Pharma Group Ltd (ASX: MYX). He also has shares in RAS Technology Holdings Ltd (ASX: RHL).

Chris Morris

Chris Morris built share registry services firm Computershare Ltd (ASX: CPU) and maintains a large holding in the business. He also has shares in US data storage company Seagate Technology Holdings PLC (NASDAQ: STX).

James Packer

The Crown Resorts Ltd (ASX: CWN) king sold out of the business in 2022 and has since invested money into US technology stocks. His biggest holdings are in Nvidia Corp (NASDAQ: NVDA), Taiwan Semiconductor Manufacturing Co Ltd (TPE: 2330), Shopify Inc (NASDAQ: SHOP), Spotify Technology SA (NYSE: SPOT), and Monday.Com Ltd (NASDAQ: MNDY).

Alan Rydge

Alan Rudge's wealth is mostly in two ASX-listed companies, which he has led for 45 years – Carlton Investments (ASX: CIN) and EVT Ltd (ASX: EVT). He is also a long-time stockholder of Harvey Norman shares.

Ed Craven

Ed Craven is Australia's youngest billionaire. He is well known for his cryptocurrency gambling empire Stake.com, and Kick streaming. He and his business partner Bijan Tehrani also have a 5% shareholding in Australian bookmaker Pointsbet Holdings Ltd (ASX: PBH).

Bruce Gordon

Bruce Gordon owns the Australian television network WIN Television through his ownership of WIN Corporation, the largest shareholder of Nine Entertainment Co Holdings Ltd (ASX: NEC). He also has shares in Singapore's mobile and telecommunication network Tuas Ltd (ASX: TUA).

Kerry Harmanis

Kerry Harmanis was the founder and executive chairman of Jubilee Mines NL, a highly successful Western Australian nickel miner which he established in 1987. Today, he still dabbles in mining shares, including Talisman Mining Ltd (ASX: TLM) and Centauras Metals Ltd (ASX: CTM).

Mark Creasy

Mark Creasy is one of Australia's most successful prospectors. He has a minority stake in nickel and lithium miner IGO Ltd (ASX: IGO), as well as a handful of other mining stocks. He recently invested into exploration company Lexington Gold Ltd (LON: LEX).