Everyone in Silicon Valley loves to talk about their wins. It’s a currency. The 100x returns, the unicorn IPOs, the portfolio companies that end up on the front page of TechCrunch. It’s a highlight reel that makes venture capital look like a non-stop party.
But nobody talks about their losses. The real, gut-wrenching, “did-I-just-ruin-my-career?” losses. The ones that keep you up at night. The ones that teach you things you could never learn from a textbook or a tweetstorm.
Well, I’m going to talk about one of mine. A big one.
I lost $500,000 on a single deal. Half a million dollars. Gone.
It wasn’t a fraud. It wasn’t a market crash. It was a rookie mistake I made on a follow-on investment, and it was a painful but powerful education in what really matters in this business. I’m sharing the raw story so you don’t have to learn this lesson the hard way.
The Seductive Allure of the “Hot” Deal
This was early in my angel investing career. I had a few small wins under my belt and was starting to build a reputation. I had co-founded and sold two companies, RemoteTeam and MovieLaLa, so I had some capital and, more importantly, I had access. I was getting into deals alongside some of the biggest names in the valley.
One of the companies in my portfolio, let’s call them “InnovateCo,” was on fire. They had a charismatic founder, a massive market opportunity, and a product that was getting a ton of buzz. Our initial seed investment was looking like a home run. Every update was better than the last: user growth was exponential, major customers were signing up, and top-tier VCs were sniffing around.
Then the email landed in my inbox: InnovateCo was raising a Series A. And not just any Series A. This was a pre-emptive round, led by a top-tier firm. The valuation was high, but the FOMO was higher. This was my chance to double down on a winner. To pour more fuel on the fire and ride it all the way to a billion-dollar exit.
I was offered a $500,000 allocation in the round. It was a significant chunk of my angel capital at the time. But all the signals were green. The lead investor was a brand name. The company’s metrics were off the charts. My gut was screaming, “This is it! This is the one that will make the fund.”
So I wired the money.
The Unraveling
For the first few months, everything seemed fine. The company issued a press release announcing the round. The founder was on every podcast. The valuation of my investment on paper soared.
But then, the updates started to slow down. The monthly investor emails became quarterly. The metrics, which had been the headline of every update, were now buried at the bottom. The narrative shifted from “explosive growth” to “strategic realignments.”
I started to get a bad feeling. I reached out to the founder. He was still as charismatic as ever, but the answers were getting vague. I talked to other investors. They were hearing the same thing. The confidence that had been so infectious during the fundraise was gone, replaced by a nervous uncertainty.
Then the bomb dropped. The company had missed its product roadmap milestones. The big customers they had announced weren’t converting to paid contracts. The burn rate was astronomical, and the runway was getting dangerously short.
The top-tier VC who had led the Series A? They weren’t putting in any more money. They had lost faith. And without their support, the company was a dead man walking.
Within a year of that “hot” Series A round, InnovateCo was out of business. My $500,000 investment, along with everyone else’s, was worth zero.
The $500,000 Lesson
Losing that money hurt. A lot. But what hurt more was the feeling that I had been played. That I had fallen for the oldest trick in the book: the hype machine.
I spent weeks replaying every decision, every conversation, every data point. And I realized my mistake wasn’t just about one bad investment. It was about my entire approach to follow-on investing.
Here’s the brutal lesson I learned: Your initial investment thesis is irrelevant in a follow-on round.
Let me say that again. The reasons you invested in the seed round? The charismatic founder, the huge market, the cool product? They don’t matter when you’re deciding whether to put in more money. The only thing that matters is the new information you have.
I had fallen in love with my own narrative. I was so convinced that InnovateCo was a winner that I ignored the warning signs. I looked at the Series A as a victory lap, not as a brand-new investment decision.
I didn’t do the work. I didn’t dig into the cap table to see how much dilution I was taking. I didn’t model out the new valuation and what it would mean for my potential return. I didn’t talk to the new lead investor to understand their real conviction level. I just followed the herd.
My New Rules for Follow-On Investing
That $500,000 loss was the most expensive, but most valuable, tuition I’ve ever paid. It fundamentally changed my approach to venture capital. Here are my new rules for follow-on investing, the ones I wish I had known before InnovateCo:
Start from Zero: Treat every follow-on round as a new investment. Forget your prior conviction. The question isn’t “Is this still a good company?” The question is, “Is this a good investment at this price, at this time, with this new information?”
Do the Math: Don’t get seduced by a high valuation. Understand the new cap table. Model out the potential returns. A higher valuation means you need a much bigger exit to get the same multiple on your money. Is that realistic?
Interrogate the Lead Investor: Don’t just look at the name brand of the VC leading the round. Get on the phone with them. Understand their thesis. Why are they investing? What are their expectations? Are they just topping up their ownership, or do they have real conviction?
Talk to Customers: Don’t rely on the founder’s narrative. Talk to the company’s customers. Are they happy? Are they paying? Are they renewing? The truth is in the usage data, not the pitch deck.
Be Willing to Walk Away: This is the hardest one. It’s emotionally difficult to walk away from a company you’ve backed from the beginning. But sometimes, it’s the smartest thing you can do. Don’t throw good money after bad. Your job is to generate returns, not to be a cheerleader.
The Bottom Line
Losing half a million dollars was a brutal experience. But it taught me a lesson that has been worth far more than that. It taught me to be a disciplined, skeptical, and rigorous investor. It taught me that in venture capital, the real wins don’t come from following the hype. They come from doing the hard work, asking the tough questions, and having the courage to walk away when a deal doesn’t make sense.
So next time you see a “hot” deal in your inbox, I want you to think of my story. I want you to remember that the most expensive mistakes are the ones you make when you stop thinking for yourself. Don’t let the FOMO cloud your judgment. Do the work. Trust your analysis. And never, ever fall in love with your own narrative.
Your bank account will thank you for it.
Frequently Asked Questions
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.