Tower Semiconductor Ltd. Ordinary Shares (TSEM) : juste valeur

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Tower Semiconductor makes analog and specialty-process wafers on contract for other chip designers, with platforms in silicon photonics, SiGe, RF and power management that are hard to replicate quickly because they depend on process know-how rather than scale alone. That specialization gives it a structural position in optical transceivers and AI data-center connectivity, where it sits behind the fabless designers who sell into hyperscalers. Revenue grew 23.7% over the trailing period and operating margin reached 19.6%, so the business is expanding and earning more per dollar of sales than a typical foundry. The stock trades at 85.6 times trailing earnings but 32.3 times forward, which means the market is pricing in a steep earnings ramp; the question for a deeper look is whether photonics volume can keep compounding fast enough to close that gap. The 10.0% return on equity is the number to pressure-test, since it suggests the margin strength has not yet translated into high returns on the capital base.