"A Yale professor says Dow Chemical shares show 'pretty clear evidence of manipulation'" (DOW; BRK)

$53.93 up 29 cents.
From MoneyBeat:

Dow Chemical’s 1-in-1000 Stock Action Works in Warren Buffett’s Favor



Dow Chemical shares are showing clear signs of tinkering, according to an analysis by a Yale University professor.

The shares come within cents of an important threshold–$53.72–pretty
often. But they’ve closed above that level so rarely that there’s less
than a one-in-a-thousand