Mark Cuban Shares His Worst Shark Tank Investment Ever

Mark Cuban Shares His Worst Shark Tank Investment Ever


June 14, 2023 | Eul Basa

Mark Cuban Shares His Worst Shark Tank Investment Ever


Mark Cuban, the billionaire investor on ABC's "Shark Tank," doesn't always strike gold. Speaking on the "Full Send" podcast, the 64-year-old tech mogul admitted that despite investing in a total of 85 startups so far, he has yet to reap the benefits.

"I haven’t gotten out more than I have put in, but that doesn’t account for all the ongoing, operating businesses and their valuations," he explained.

According to him, the worst investment deal he ever made on the show was with the Breathometer. Charles Michael Yim, the entrepreneur behind the Breathometer, claimed that his plastic smartphone attachment could produce accurate BAC level readings, which would therefore help its users make safer decisions. Marketed as "the world's first smartphone breathalyzer," the concept impressed all five of the Sharks, who ultimately agreed on a joint investment: $1 million for a 30% stake (valuing Yim's company at 3.3. million).

Unfortunately, Yim proved difficult to work with. Cuban revealed that despite the potential of the product, Yim failed to keep his focus on the company, resulting in its own downfall.

"It was a great product; but, the guy, Charles – I’d look at his Instagram and he’d be in Bora Bora. Two weeks later, he’d been in Vegas partying, and then he’d be on Necker Island with Richard Branson."

BreathometerYouTube

"I’d text him, like "What the f— are you doing? You’re supposed to be working,'" Cuban said. Yim would simply reply that he was "networking" for the company, but over time, his habits caught up to him. Eventually, all of the money was gone.

But that's not all — in 2017, the Federal Trade Commission filed a complaint against Yim, saying he had misled customers about the Breathometer's ability to produce accurate BAC level readings. According to the FTC, Breathometer never conducted appropriate testing on the device, despite claiming that it had been tested under "government lab" standards.

Yim later responded to Cuban's comments, telling CNBC Make It that Cuban's comments were "completely off" and that he never used the company's money to party. He defended his trip to Necker Island, in particular, saying he was there to pitch the Breathometer to Richard Branson. In fact, Branson was reportedly impressed by the product, and Yim became a finalist in Branson's Extreme Tech Challenge in 2015.

"You can’t look at someone’s social media and take it for face value. That’s not how social media works," Yim said.

Today, the Breathometer is no longer available for purchase on Yim's website, and the company is reportedly soon to be acquired.

Source

 


READ MORE

I let my boyfriend use my credit cards to build his brand. He's gone. The debt isn't. What now?

Let’s set the scene: you let your boyfriend use your credit cards to fund his “big brand vision.” Now, he's vanished into the ether like last season’s TikTok trend, but the debt is still hanging around like an unpaid tab. It’s painful, it’s personal, but most importantly—it’s solvable. Let’s walk through how to clean up this financial heartbreak, one bold step at a time.
August 1, 2025 Jack Hawkins

I co-signed a lease for my cousin. He skipped town, and now the landlord’s coming after me. What are my options?

Co-signing a lease for someone can seem like a nice thing to do, particularly if they're your family—you're helping them out, right? Well, not in this case. If your cousin who's never been much of a person of their word has decided to skip town on a lease that you co-signed, you're up the creek without a paddle. Here's how to handle it.
August 1, 2025 Jack Hawkins

We saved a bundle when we retired and downsized to a condo, but the homeowners association has tripled the fees in the past two years. Now what?

Downsizing to a condo when you retire could be a great idea, but HOA fee increases can put a major dent in your retirement plan.
August 1, 2025 Penelope Singh

Vintage Barbie Dolls Selling For Big Bucks

Once upon a dreamhouse, Barbie dolls were the queens of toy chests everywhere. But these days? Some of them are basically miniature gold bars in pink plastic stilettos. Whether they were dressed for a prom, a rock concert, or the royal court of France, vintage Barbies are making major waves at auctions and collectors’ markets.
August 1, 2025 J. Clarke

I used credit cards to fund my wedding. We're now divorced, and the debt is stuck with me. What should I do now?

So, you paid for the DJ, the flowers, the dance floor—and now you’re divorced, staring down a mountain of credit card debt you funded with love and hope. It’s rough. But you’re not stuck. This guide walks you through reclaiming your finances with clarity, humor, and no judgment. Let’s turn this pain into power.
July 31, 2025 Jack Hawkins

I’ve been secretly renting out our basement on Airbnb to pay off credit card debt. What if my spouse finds out?

Renting out your basement on Airbnb to tackle credit card debt might seem like a practical solution. But keeping it a secret from your spouse is never a good idea. It's their home too. Before panic sets in, step back and evaluate your motives, the risks, and the road ahead. There are thoughtful ways to resolve this honestly and constructively—without blowing up your relationship.
July 31, 2025 Jack Hawkins


Disclaimer

The information on MoneyMade.com is intended to support financial literacy and should not be considered tax or legal advice. It is not meant to serve as a forecast, research report, or investment recommendation, nor should it be taken as an offer or solicitation to buy or sell any securities or adopt any particular investment strategy. All financial, tax, and legal decisions should be made with the help of a qualified professional. We do not guarantee the accuracy, timeliness, or outcomes associated with the use of this content.





Dear reader,


It’s true what they say: money makes the world go round. In order to succeed in this life, you need to have a good grasp of key financial concepts. That’s where Moneymade comes in. Our mission is to provide you with the best financial advice and information to help you navigate this ever-changing world. Sometimes, generating wealth just requires common sense. Don’t max out your credit card if you can’t afford the interest payments. Don’t overspend on Christmas shopping. When ordering gifts on Amazon, make sure you factor in taxes and shipping costs. If you need a new car, consider a model that’s easy to repair instead of an expensive BMW or Mercedes. Sometimes you dream vacation to Hawaii or the Bahamas just isn’t in the budget, but there may be more affordable all-inclusive hotels if you know where to look.


Looking for a new home? Make sure you get a mortgage rate that works for you. That means understanding the difference between fixed and variable interest rates. Whether you’re looking to learn how to make money, save money, or invest your money, our well-researched and insightful content will set you on the path to financial success. Passionate about mortgage rates, real estate, investing, saving, or anything money-related? Looking to learn how to generate wealth? Improve your life today with Moneymade. If you have any feedback for the MoneyMade team, please reach out to hello@moneymade.com. Thanks for your help!


Warmest regards,

The Moneymade team