MMs walked it down easy, like helping a little old lady cross the street. Quick enough to not get run over, but not so fast as to have her do a face plant in the street.

Then weak hands start folding, and they can cover & accumulate for another run up. It does irritate the strictly buy-and-hold investors, some more than others, but they keep the liquidity alive so most of the traders and even the company can benefit from it. Those who lose out are the scaredy cats that sell in the bottom half and buy in the top half of every swing. Until they're broke.