HAES vs. the diet industry: Weight Watchers stock crashes I'm too drunk to decide if this is good or bad, but I know that I hate fat people. Weight Watchers’ stock drops after pivoting company focus WW, formerly known as Weight Watchers, has tipped the scales in the wrong direction. The diet company’s shares plummeted 31 percent in after-hours trading Tuesday after it warned of a “difficult start” to the new year tied to the company’s focus on health and wellness instead of shedding pounds.