Loop Capital analyst James Kisner kept his Buy rating and $73 price target on Lumentum (LITE), saying the surprising weakness after "very strong" Q4 results is a "buying opportunity". Kisner notes that the commentary around the 3D sensing business was "very encouraging", adding that bulls were likely discouraged by the implied slower December quarter ramp. The analyst contends that Lumentum stock is "undervalued given robust growth prospects in 3D sensing, telecom optical components, and significant accretion potential from the pending acquisition of Oclaro (OCLR).