BlockBeats reported on Aug. 14 that analyst qinbafrank compared two leading U.S.-listed optical interconnect names, Coherent (COHR) and Lumentum (LITE), and argued that their different positioning points to different investment cases. In the comparison, Coherent was described as the scale and platform leader in the U.S. photonics industry, with strengths in scale, product breadth, manufacturing platform, and long-term technology stack and customer coverage. Lumentum, by contrast, was presented as the leader with stronger profit density and earnings elasticity within the AI optics value pool.
The analyst said Lumentum is clearly ahead in growth rate, gross margin, operating leverage, current operating quality, and net liquidity. He also highlighted that the size gap between the two companies is narrowing quickly. Coherent’s revenue was 2.36 times Lumentum’s for full-year fiscal 2026, fell to 2.03 times in fiscal 2026 fourth quarter, and is guided to narrow again to 1.84 times at the midpoint of fiscal 2027 first-quarter guidance. Based on that guidance midpoint, Coherent’s implied Non-GAAP operating profit is only about 1.04 times Lumentum’s, despite revenue running at roughly 1.84 times. The comparison, according to the analyst, points to stronger earnings quality and operating leverage at Lumentum.
BlockBeats reported on Aug. 14 that analyst qinbafrank compared Coherent (COHR) and Lumentum (LITE), two leading names in the U.S. optical interconnect segment, and said their positioning leads to different investment logic.
Different positioning, different investment case
In the comparison, Coherent was described as the scale and platform leader in the U.S. photonics industry. Its edge lies in scale, product breadth, manufacturing platform, and long-term technology stack and customer coverage.
Lumentum, in contrast, was framed as the leader with stronger profit density and earnings elasticity in the AI optics value pool. The analyst said it is clearly ahead in growth rate, gross margin, operating leverage, current operating quality, and net liquidity.
Revenue gap is shrinking fast
The size gap between the two companies is narrowing quickly. For full-year fiscal 2026, Coherent’s revenue was 2.36 times that of Lumentum. By fiscal 2026 fourth quarter, that multiple had dropped to 2.03. At the midpoint of guidance for fiscal 2027 first quarter, it narrowed again to 1.84.
Profit comparison favors Lumentum
Using the midpoint of next-quarter guidance, Coherent’s revenue is about 1.84 times Lumentum’s, but its implied Non-GAAP operating profit is only about 1.04 times as large.
Using the roughly 2.03 times quarterly revenue comparison, Coherent generated only about 1.62 times Lumentum’s Non-GAAP gross profit, 1.21 times its operating profit, and 1.08 times its net profit.
The comparison suggests that Lumentum is materially ahead of Coherent in earnings quality and operating leverage, while the gap in both revenue and profit scale continues to close quickly.
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