In 1978, between the first and second years of his MBA program, O'Leary was selected for an internship at
Nabisco in
Downtown Toronto and then worked as an assistant brand manager for Nabisco's cat food brand. O'Leary attributed his future business success at The Learning Company as a result of the extensive marketing skills that he honed during his assistant brand management days at Nabisco. After leaving Nabisco, O'Leary began a brief career as a television producer. With two of his former MBA classmates, Scott Mackenzie and Dave Toms (both of whom had assisted on O'Leary's MBA documentary), O'Leary co-founded Special Event Television (SET). SET was an independent television production company that produced original sports programming such as
The Original Six, ''Don Cherry's Grapevine
, and Bobby Orr & The Hockey Legends''. The company achieved limited success with minor television shows, soccer films, sports documentaries, and short in-between-period commercials for local professional hockey games. One of his partners later bought out his share of the venture for $25,000. As the software and personal-computer industries were proliferating throughout the course of the early 1980s, O'Leary convinced printer manufacturers to bundle Softkey's program with their hardware. With distribution assured, the company developed several educational software products focused on mathematics and reading education. Softkey products typically consisted of software for home users, especially
compilation discs containing various
freeware or
shareware games packaged in "jewel-case" CD-ROMs. In 1995, Softkey acquired
The Learning Company (TLC) for $606 million, adopting its name, and moved its headquarters to
Cambridge, Massachusetts. TLC lost $105 million (US) in 1998 on revenues of $800 million and suffered losses over the previous two years. TLC bought its former rival
Broderbund in June 1998 for $416 million. In 1999, TLC was acquired by
Mattel for US$4.2 billion. While acquisition management had projected a post-acquisition profit of US$50 million, Mattel actually experienced a loss of US$105 million. Mattel's stock dropped, wiping out US$3 billion of shareholder value in a single day. Mattel's shareholders later filed a class-action lawsuit accusing Mattel executives, O'Leary, and former TLC CEO Michael Perik of misleading investors about the health of TLC and the benefits of its acquisition. The lawsuit alleged that TLC used accounting tricks to hide losses and inflate quarterly revenues. In response, O'Leary and his defendants disputed all of the charges, with Mattel later paying $122 million to settle the lawsuit in 2003. O'Leary blamed the technology meltdown and a culture clash between the management of the two companies for the failure of the acquisition. O'Leary and financial backers from
Citigroup made an unsuccessful attempt to acquire the French video game company
Atari, with O'Leary having made plans to start a video-gaming television channel which never materialized. StorageNow became the largest operator of storage services in Canada, with facilities in 11 cities, and was acquired by Storage REIT in March 2007 for $110 million. The case was settled out of court.
O'Leary Funds In 2008, O'Leary co-founded O'Leary Funds Inc., a mutual fund management firm focused on global yield investing. He is the company's chairman and lead investor, while his brother, Shane O'Leary, serves as a director. The fund's assets under management grew from $400 million in 2011 to $1.2 billion in 2012. The fund's primary manager was Stanton Asset Management, a firm controlled by the husband-and-wife team of
Connor O'Brien and Louise Ann Poirier. Another analysis also found that one-quarter of the distributions from one of O'Leary's funds were return of capital. On October 15, 2015, O'Leary Funds was sold to Canoe Financial, a private investment-management company owned by Canadian businessman
W. Brett Wilson. Wilson was once an investor with O'Leary on CBC's ''Dragons' Den.''
O'Leary Ventures O'Leary is also the founder of O'Leary Ventures, a private early-stage venture capital investment company, O'Leary Mortgages, O'Leary books, and O'Leary Fine Wines. In April 2014, O'Leary Mortgages closed. O'Leary's funds have a questionable history and are said to have declined over 20% in a year, often a big blow to fund managers. O'Leary no longer manages outside money.
ETF and investing On July 14, 2015, O'Leary launched an
Exchange-traded fund (ETF) through O'Shares Investments, a division of his investment fund, O'Leary Funds Management LP, where O'Leary serves as chairman. A
value investor, he has advised on
personal finance. He advocates
portfolio diversification and suggests that investors have their age as the percentage of
bonds in their portfolios (i.e., 30% in bonds and 70% in stocks for a 30-year-old investor, with an increasing proportion of bonds and decreasing proportion of stocks as the investor ages). O'Leary is also an active
gold investor, with five percent of his financial portfolio invested in physical gold. However, he does not invest in stocks of gold-mining companies because he says
cash flow is an important investment factor to him. O'Leary also advises diversification in multiple industry sectors while dedicating no more than 20 percent of one's financial portfolio being concentrated in one sector.
Cryptocurrency O'Leary initially expressed skepticism about cryptocurrency, describing
bitcoin as "a digital game" and "useless currency" in 2019. He illustrated his thinking with the following example, "Let's say you want to buy a piece of Swiss real estate for $10 million in bitcoin...The seller wants a guarantee that the bitcoin value comes back to the U.S. currency. You have to somehow
hedge the risk of bitcoin. That means it's not a real currency. That means the receiver is not willing to take the risk of the volatility it has. It's worthless." In May 2021, O'Leary said he had made a 3 to 5% allocation to bitcoin and had become a strategic investor in the
Vancouver-based
decentralized finance platform Defi Ventures; the company then renamed itself WonderFi Technologies, in reference to O'Leary's nickname, "Mr. Wonderful". In August 2021, it was announced O'Leary would take an ownership stake in the parent companies of FTX.com and FTX.US as part of his compensation for becoming a "spokesperson and ambassador" for
FTX. FTX subsequently
went bankrupt due to CEO
Sam Bankman-Fried secretly using client funds to make speculative bets that were unsuccessful. In November 2022, O'Leary, alongside other spokespeople for FTX, was sued in a
class-action lawsuit. There is precedent for prosecuting individuals promoting fraudulent cryptocurrency ventures—regardless of whether they had
plausible deniability. For example, in February 2022, the
U.S. 11th Circuit Court of Appeals ruled in a lawsuit against
Bitconnect that the
Securities Act of 1933 extends to
targeted solicitation using
social media. O'Leary claimed on CNBC that he was paid $15 million for the spokesman role, adding that he lost $9.7 million in digital assets, the remainder allotment in various fees and taxes, and a further million dollars' worth of equity after the company's insolvency. At an FTX hearing, O'Leary claimed that
Binance CEO
Changpeng Zhao "put FTX out of business." O'Leary has been an advocate of
cryptocurrency investing and personally owns coins in the cryptocurrencies
Ether, A4M Ethereum Blockchain, Polygon,
SOL,
Bitcoin, and
Pawthereum.
Project Stratos In April of 2026, O'Leary announced a joint venture between ''O'Leary Digital'' and Utah's Military Installation Development Authority (MIDA) to construct a large
data-center campus and energy infrastructure in
Box Elder County, Utah. The venture, the Stratos Project, would span roughly 40,000 acres across multiple sites in the arid region north of
The Great Salt Lake. At full capacity the project is estimated to consume up to 9 gigawatts of electricity (more than double Utah's current consumption). Citing energy concerns, the project would operate off-grid, generating its own energy by tapping into the nearby
Ruby Pipeline. Local residents and scientists have raised concerns relating to the projects potential energy and water use, emissions, as well as its overall environmental impact. As of May 4th 2026, Box Elder County officials have green-lit the projects proposal. ==Books==