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TTM Technologies' shares have fallen 11.3% over three months due to concerns about rising debt from the $1.1B Epiq Solutions acquisition and high valuation. However, strong AI data center demand (91% Q2 sales growth) and expanding defense opportunities support a hold rating. The company raised its 2026 outlook to $4.4B in sales and nearly $5 EPS, but faces challenges from customer concentration, high capital expenditures, and elevated valuation multiples.

Applied Optoelectronics (AAOI) saw Q2 data center revenue surge 140.4% with 800G sales up over tenfold, driven by AI infrastructure investments. The company expects strong Q3 growth with revenues of $255-290 million.

However, supply constraints, rising competition, and premium valuation at 5.41X P/S ratio present headwinds. AAOI carries a Zacks Rank #3 (Hold) rating.