If a fake, made up currency, backed by absolutely nothing can trade for $60,000, surely it's POSSIBLE that BRK could make a move that may be seen by many as a mere 10, 20 or 30% too high.

“POSSIBLE” is an open ended, loaded word. Almost *anything* is “POSSIBLE.”

In this case, though, I’d say it’s unlikely in the extreme.

In recent months we have seen massive percentage moves by companies with larger market caps than BRK, namely MSFT, Nvidia, Apple, and others

Sure. Those are tech stock which can be volatile or flukey, and which can respond dramatically to a good story, i.e. “new tech development that will upend the world.” Somehow that seems unlikely with a conglomerate made up of centerpiece consumer products and services, from truck stops to manufactured houses, from candy to insurance, from Dairy Queen to pipelines.

What possible “story” would move a monolith like Berkshire? There are no hurricanes predicted for the foreseeable future? All railroads except ours stop operating? A law is passed requiring every citizen to have a double-fudge ice cream cone daily?

What?

No, we are the turtle. There are hares about, and some will win the race, but we are slow and steady, rock solid, a holder of vast wealth which is unlikely to find itself beset with the sorts of moves that others endure, both for good and bad. Thanks but no thanks Peleton. Zoom. Tesla. Lyft. Zillow. Etc.