Kevin O'Leary

O'Leary is famous for royalty deals. On Shark Tank, he frequently offers founders a deal where he gets a royalty per unit sold rather than (or in addition to) equity.

His logic: royalties start paying immediately, do not depend on an exit event, and give him guaranteed cash flow regardless of whether the company gets acquired. He also invests in ETFs and dividend-paying equities through his O'Shares brand.

He is very publicly diversified — he does not concentrate bets. He likes to say he treats every dollar as a soldier that goes out and brings back more soldiers.

Charlie Munger

Munger's whole thing is mental models. The idea is simple: instead of being an expert in one field, you learn the core concepts from as many different fields as possible — psychology, biology, physics, economics, history — and then use that whole toolkit to think about problems.

He calls it a latticework of mental models. It sounds like a self-help concept.

It's actually how he consistently made better decisions than almost everyone around him. On investing, he pushed Buffett away from his old mentor's approach — which was basically "find dirt-cheap companies and flip them fast" — toward something more durable: find the best businesses in the world and hold them forever.

The key word he uses is moat. A business so dominant that competitors can't touch it.

Think Coca-Cola. He was also deeply influenced by psychology, particularly the ways humans reliably fool themselves.

He gave a famous talk called "The Psychology of Human Misjudgment" listing 25 ways our brains get things wrong. Reading it once will change how you make decisions.

Kevin O'Leary

Every dollar is a soldier. Send it out to bring back more soldiers.

O'Leary's philosophy is entirely about cash flow and capital efficiency. He wants money working for him at all times.

He is against speculative investments that do not produce income. He is famously anti-debt for personal use but comfortable with leverage in business when the numbers work.

His mother taught him to save 10% of everything — he still follows that rule.

Charlie Munger

Invert. Always invert.

That's his most famous rule — borrowed from the mathematician Jacobi. Instead of asking "how do I succeed?" ask "what would guarantee failure, and then avoid those things." It sounds obvious.

Almost nobody actually does it. He believes the secret to a good life and good investing is the same: figure out what you want to avoid, avoid it relentlessly, and most good things follow.

On wealth: getting rich isn't the hard part — keeping it is. Most people blow up by using borrowed money, getting greedy at the top, or panicking at the bottom.

Don't do those things. On decisions: only make the big bet when you're very sure.

Be patient for a long time, then move fast when the opportunity is obvious.

Kevin O'Leary

O'Leary caps any single position at 5% of his total portfolio. When something appreciates beyond that, he trims.

He never lets conviction turn into concentration. His royalty deal preference on Shark Tank is itself a risk management tool — royalties pay regardless of whether the company ever gets acquired or goes public, while equity only pays on an exit that may never come.

He has said the single biggest mistake retail investors make is falling in love with a stock and watching a 5% position quietly become 40% of their net worth before they notice.

Charlie Munger

Munger's approach to risk: don't take risks you don't understand, and don't take risks you don't need to. He kept things simple.

He concentrated into a small number of businesses he understood deeply. He never used borrowed money.

He kept large cash reserves. His view on diversification was almost the opposite of what most financial advisors tell you — he thought spreading money across 50 stocks was an admission that you hadn't done enough homework.

If you've done the work, you concentrate. If you haven't, maybe don't invest at all.

Kevin O'Leary

O'Leary is flashy on camera — he wears a signature watch, talks about wine and luxury — but has spoken about being more measured in private. He collects fine wine and has a wine brand (O'Leary Fine Wines).

He runs every financial decision through a "what does this dollar do for me" filter. He has said he wakes up early, spends mornings on markets and email, and treats content creation and Shark Tank as businesses in themselves.

Charlie Munger

Munger lived in the same house in Los Angeles for most of his adult life. He was famously frugal — not in a miserable way, but in a "I genuinely don't care about most things money buys" way.

He flew commercial until fairly recently. He read obsessively.

He described himself as a book with legs. His children joked that he was more interesting to talk to than almost anyone alive, but would only engage on topics he found intellectually stimulating.

He donated massively to education — hundreds of millions to Harvard Law School, the University of Michigan, and other institutions, often with very specific conditions attached. He designed buildings as a hobby and funded their construction himself.

He died at 99 worth around $2.6 billion — extraordinary by any measure, and somehow modest given he sat next to one of the richest men in history for 45 years.

Kevin O'Leary

Selling SoftKey / The Learning Company to Mattel for $4.2 billion. The fact that Mattel destroyed most of that value after the acquisition does not change the outcome for O'Leary — he negotiated the sale, collected his share, and moved on.

The deal remains one of the largest educational technology exits in history.

Charlie Munger

See's Candies. In 1972, Munger convinced a reluctant Buffett to pay what seemed like an expensive price — $25 million — for a California candy company.

Buffett thought it was too much. Munger held firm.

See's has since generated over $2 billion in profit for Berkshire, basically funding dozens of other acquisitions. It also taught Buffett the single most important lesson of his career: paying a fair price for a great business beats getting a cheap price for a mediocre one.

That one deal changed the entire direction of Berkshire Hathaway.

Kevin O'Leary

The SoftKey-Mattel deal is simultaneously his biggest win and his most controversial chapter. Critics have argued that the company was aggressively managed for the sale rather than for long-term health — and that the $3.6 billion write-down at Mattel was foreseeable.

O'Leary disputes this and says the operational problems were Mattel's responsibility after the acquisition.

Charlie Munger

Munger is famous for avoiding mistakes more than for making spectacular wins — his whole philosophy is about not doing stupid things. But he's admitted to a few.

He said Berkshire was too slow to move into BYD, China's electric vehicle company, despite knowing it was exceptional for years before they finally bought in. He also held too much Wesco Financial for too long when the money could have been put to better use elsewhere.

His most honest self-criticism: he wished he had moved faster when the evidence was already clear. For a man who spent his career warning others about psychological biases, he wasn't immune to them.

Kevin O'Leary

Kevin O'Leary was born in Montreal in 1954 to an Irish-Canadian father and a Lebanese mother. His mother taught him about money early — she literally forced him to save a portion of every dollar he ever received.

He studied environmental science and then got an MBA from Western University (Ivey Business School). He co-founded SoftKey International in 1986, an educational software company.

Through aggressive acquisitions — buying The Learning Company, Broderbund, and others — SoftKey became the dominant educational software company in North America. It was sold to Mattel in 1999 for $4.2 billion.

Mattel subsequently wrote down $3.6 billion of that purchase price, calling it one of the worst acquisitions in corporate history. O'Leary was already cashed out.

He moved into TV, joining Canada's Dragon's Den in 2006 and Shark Tank in 2009. He also launched O'Leary Funds (mutual funds and ETFs), O'Shares ETFs, and various venture investments.

Charlie Munger

Charlie Munger grew up in Omaha — same city as Buffett, but they didn't know each other yet. His father was a lawyer.

So was his grandfather. Charlie became one too, but he was clearly more interested in figuring out how the world worked than in courtrooms.

He studied math at the University of Michigan, got drafted into World War II, trained as a meteorologist, and somehow ended up at Harvard Law School without ever finishing an undergraduate degree. Harvard took him anyway.

He graduated in 1948 and moved to California to practice law. He was good at it.

He was also quietly building a real estate business on the side that made him more money than law ever did. He and Buffett met at a dinner in Omaha in 1959.

Munger was 35. Buffett was 28.

By the end of the night, Buffett was trying to convince Munger to go into investing full time. It took about a decade.

Munger ran his own investment partnership from 1962 to 1975 — returned 24% annually while the market did 6.4%. Then he fully merged his career with Buffett's at Berkshire, where he stayed until his death in 2023.

Kevin O'Leary

SoftKey International / The Learning Company (co-founder, sold to Mattel for $4.2B in 1999). O'Shares ETFs (financial products).

O'Leary Ventures. Dragon's Den (2006-2014).

Shark Tank (2009-present). Books: Cold Hard Truth on Business, Money & Life; Cold Hard Truth on Family, Kids & Money.

Charlie Munger

Munger's main stage was Berkshire Hathaway, where he served as Vice Chairman from 1978 until he died. His role was hard to define on paper — he didn't run a fund or manage a portfolio.

What he actually did was talk to Buffett. That was worth a trillion dollars.

Before Berkshire, he ran his own investment partnership from 1962 to 1975 that crushed the market. He also controlled Wesco Financial, a small insurance and financial company he ran as a personal Berkshire subsidiary from 1973 to 2011, until Berkshire fully absorbed it.

Outside finance, he was obsessed with architecture — he personally designed several buildings, including a dormitory at the University of Michigan that his own architecture school rejected for violating design principles. He funded it anyway.

Kevin O'Leary

University of Waterloo — Bachelor of Science in environmental studies and psychology. Western University (Ivey Business School) — MBA.

Charlie Munger

University of Michigan, mathematics — left for World War II without graduating. US Army Air Corps, meteorology training.

Harvard Law School, JD 1948 — admitted without an undergraduate degree, which Harvard is apparently capable of when it wants to be.