Concentration Risk After Selling a Business: How to Check Yours
Once they've sold, many founders put their money back into what they already know, often without noticing. Why that happens, and how to check your own holdings.
What's changing right now. Playbooks explain the system. Signals track what's shifting — in private markets, wealth structures, and founder behaviour — so you can move before the crowd notices. Published weekly. Pattern recognition for founders managing their own capital.
Once they've sold, many founders put their money back into what they already know, often without noticing. Why that happens, and how to check your own holdings.
Most of your wealth sits in one company, and the sale is the move you spend years picturing. Why it's OK to take some money off the table as the business grows, what that does for your risk and your stress, and what two founders got from billion-dollar valuations.
Anthropic put a price on the packaged adviser stack last week, and the people who sell that software for a living were the least excited in the room. Look at what shipped and you can see who it was built for. If you run your own money, the tool is the cheap part and the checking is still yours.
Sooner or later someone suggests hiring one person to coordinate the accountant, the lawyer and the portfolio manager. Whether that's a hire or still you is a question of stage, not how much you have. What it costs, and the page worth writing before you look for anybody.
Most founders carry a number in their head, and many set it against the company's valuation. Carta's ownership ladder shows how little of that number is theirs by Series C, and why the version that survives the exit is the one written down early, on your own balance sheet.
Founders arrive at liquidity expecting to keep the pace of the business, and that pace is where money gets lost. Mindset first, then people, then four buckets that give every part of the money a job before any deal gets a yes. The order matters more than the picks.
Most founders with $5M–$100M already run their money themselves, with professionals on call and no staff on payroll. That arrangement has never had a name. This week it gets one, and a standard to run to.
Somewhere in your wealth manager's paperwork you're either retail or professional. One word decides what you're offered, what you pay, and what protection you keep. How the line works, what the institutional side opens up, and when it starts to make sense.
Founders copy other people's wealth setups and find they don't fit. A minimum viable family office is five jobs in the right order, and the first is a page of writing that half of them never produce.
Founders count the pension and the index fund as the diversified side of the balance sheet. With the top 10 stocks at 44% of the S&P 500 and the seven biggest, all tech, at about a third, that money is often the same bet as the business.
The story going around is that AI finally lets a founder run their own money and skip the wealth manager. It has it backwards. AI is worst at the actual investment decisions, and best at making the people who make them cheaper to hire.
A full in-house family office runs $700k to $1m a year, which makes little sense below $100m. The cheaper route is to buy the same work from a multi-family office or an outsourced CIO, for a fraction of the cost.