A “pivotal question” is whether the slowdown in the athleisure company’s U.S. business is temporary “or a sign of something more fundamental,” UBS says.

Lululemon lovers are already stretching their wallets to the limit — and now they’ve had enough. Fans and critics alike were clucking their tongues Friday after the athleisure giant warned customers they’d soon be paying even more for already-pricey workout gear — following a whopping stock nosedive.

Apparel maker’s stock falls nearly 20% after company lowers its earnings forecast, citing trade war and a pullback in consumer spending.