TTM Technologies is trading 9.9% down at $64.66, amid acquisition-financing concerns and broader technology weakness; available evidence does not establish a definitive cause. - The company plans a $650 million Ophir Optics acquisition, and management has discussed roughly $20 million in additional quarterly interest expense tied to financing. - Its latest filing reports substantial outstanding debt. - The Nasdaq was down 2.73%, while technology ETF XLK was down 2.18%.