The action on Wall Street is starting to remind us of Harlem Globetrotters shtick. Yesterday’s comic show conjured up Meadowlark Lemon at the free-throw line: He pumps once, he pumps twice, then he sends the ball arcing toward the basket. Half-a-dozen guys leap for the rim, only to see the ball, which has been tethered to Meadowlark’s finger by an elastic cord, snap back into his hand. Something like that occurred yesterday on the NYSE, where stocks opened on a vaulting arc, only to be hauled back...