Everyone in Silicon Valley loves a winner. We celebrate the unicorns, the 100x returns, and the founders who grace the covers of magazines. But what about the losses? The bone-headed mistakes that cost you a fortune and keep you up at night? Nobody talks about those. Well, I’m going to.
I lost $500,000 on a follow-on investment that went to zero. It was a painful, expensive, and deeply humbling experience. But it also taught me a lesson that has been worth far more than the money I lost. I’m sharing the raw story, so you don’t have to learn it the hard way.
The Seduction of the Follow-On
Follow-on investing is when you double down on a company you’ve already backed. You’re putting more money into a later funding round, hoping to increase your stake in a winner. On paper, it’s a no-brainer. You have inside information, a relationship with the founders, and a front-row seat to the company’s progress. What could go wrong?
As it turns out, a lot.
The company, let’s call them “ConnectSphere,” was one of my early angel investments. They had a charismatic CEO, a slick pitch deck, and a product that promised to revolutionize social networking. The initial buzz was incredible. They were featured in all the right tech blogs, and their user numbers were supposedly going through the roof. I felt like I had a winning lottery ticket.
About a year after my initial investment, the CEO came to me with an urgent request. They were on the verge of landing a massive partnership with a household name, but they needed a quick cash injection to scale their infrastructure to handle the expected user load. He made it sound like a sure thing. All we had to do was bridge them for a few months, and we’d all be celebrating on a yacht.
I was hooked. The fear of missing out on the explosive growth was palpable. So, I wired him the money. All $500,000 of it.
The Red Flags I Willfully Ignored
Looking back, the warning signs were all there. I just chose to ignore them, blinded by the promise of a huge return.
1. The Tyranny of Vanity Metrics
The CEO’s updates were always full of impressive-sounding numbers. “We’ve hit 1 million downloads!” he’d say. Or “Our daily active users are up 50% month-over-month!” What I failed to do was dig into what those numbers actually meant. How many of those downloads were from bots? How many of those “active” users were just opening the app once and never coming back? I was so caught up in the top-line growth that I never bothered to ask the hard questions about user engagement and retention. The real metrics, the ones that actually matter, were buried in the data, and I never went looking for them.
2. The Siren Song of the “Imminent” Breakthrough
The promised partnership was always just around the corner. “We’re in the final stages of negotiation,” the CEO would tell me. “The lawyers are just hammering out the last few details.” This went on for months. I let my belief in the founder and his vision override my own common sense. I wanted to believe the story so badly that I didn’t question the ever-shifting timelines and the lack of any concrete evidence.
3. The Glossed-Over Term Sheet
In my haste to get the deal done, I didn’t pay close enough attention to the term sheet for the follow-on round. There was a clause in there, buried in the legalese, about a participating preferred stock with a 3x liquidation preference for the new lead investor. In simple terms, this meant that in the event of a sale, the new investor would get their money back three times before anyone else saw a dime. It was a predatory term, and I completely missed it. I was so focused on the upside that I didn’t protect myself on the downside.
4. The Echo Chamber of Confirmation Bias
I was so invested, both financially and emotionally, that I only sought out information that confirmed my belief that ConnectSphere was a winner. I talked to other investors who were equally bullish. I read the glowing press articles. I surrounded myself with a chorus of “yes men” who told me what I wanted to hear. I never once sought out a dissenting opinion or played devil’s advocate with my own assumptions.
The Inevitable Crash
The unraveling happened faster than I could have imagined. The big partnership never materialized. A competitor launched a similar product with a better user experience and quickly ate their lunch. The charismatic CEO, it turned out, was better at raising money than he was at building a business. The company bled cash for another six months before quietly shutting down.
I got the email on a Tuesday morning. “It is with a heavy heart that I have to inform you that ConnectSphere will be ceasing operations, effective immediately.” Just like that, my $500,000 was gone. The feeling was sickening. It wasn’t just the financial loss; it was the blow to my ego. I had been so sure, so arrogant. And I had been so, so wrong.
The $500,000 Lesson: Trust, but Verify with Extreme Prejudice
So, what did I learn from this expensive mistake? It’s simple, but it’s not easy: Trust, but verify with extreme prejudice.
As an investor, you have to believe in the founders you back. You have to believe in their vision, their passion, and their ability to execute. But you can’t let that belief cloud your judgment. You have to be a skeptic. You have to be a detective. You have to be the one who asks the uncomfortable questions and demands the hard evidence.
Here’s my checklist now for any follow-on investment:
- Show me the cohort analysis. I don’t want to see your vanity metrics. I want to see how users who signed up in January are behaving in June. Are they still active? Are they spending money? Are they telling their friends?
- Let’s talk to your customers. I want to hear directly from the people who are using your product. What do they love about it? What do they hate? How would they feel if it disappeared tomorrow?
- Who is your competition, really? Don’t just tell me about the obvious players. Tell me about the upstarts, the substitutes, and the indirect competitors. I want to know that you have a deep understanding of the competitive landscape and a credible plan to win.
- Walk me through your financial model. I want to see your assumptions. I want to poke holes in your projections. I want to know that you have a realistic plan to get to profitability.
- What’s the worst-case scenario? I want to know that you’ve thought about what could go wrong and that you have a contingency plan. I’m not investing in a fairy tale; I’m investing in a business.
Losing half a million dollars was a brutal education. But it made me a better investor. It taught me to be more disciplined, more rigorous, and more humble. And in the world of venture capital, those are lessons that are worth paying for.
Frequently Asked Questions
How can I apply this thinking to my own situation?
Start by identifying the core principle behind the opinion, not the specific example. Then ask yourself: does this principle apply to my context? If yes, test it in a small, low-risk way before going all in.
What's the most common pushback you get on this?
People often push back by citing exceptions or edge cases. And they're usually right that exceptions exist. But building a strategy around exceptions rather than patterns is a losing game for most founders.
Do all experts agree with this view?
No, and that's fine. The best ideas in business are often contrarian. I share my perspective based on my experience and data, but I encourage you to seek out opposing viewpoints and form your own conclusions.
What experience informs this perspective?
This perspective comes from over a decade of building companies in Silicon Valley, two successful exits (RemoteTeam to Gusto, MovieLaLa to Gfycat), and investing in 200+ startups including Anthropic, OpenAI, and Scale AI. I write about what I've lived.