What it is — Berkshire Hathaway is Warren Buffett and Charlie Munger's holding company. It owns whole businesses (insurance, a railroad, energy, retail) and big stakes in public companies. The Class B shares (BRK-B) are the affordable way to own a slice.
Why now — The trigger was my code — the small signal system I've been building to tell me when it might be a sensible time to start a position. It flagged Berkshire today, so I opened a small starter position and I'm sitting tight.
The bet — I can't value Berkshire myself yet. What I'm really counting on is two things: that a diversified, conservatively-run collection of good businesses is a sensible place for a beginner to start, and that my code's timing, tested over time, adds a little edge. Mostly it's a position I'm happy to hold for a very long time while I learn.
What could go wrong — My code is new and unproven; the signal could be noise. Berkshire is also moving into a future beyond its founders, and no company stays great forever. "It's Buffett's company" is not, by itself, a reason — I have to keep learning why it's actually a good business.
The record continues below this line — append-only, each entry dated. The original text above is never touched. Quarterly checks, splits, dividends, and any options hedge on this position go here.