Tower put a $1.3B 2027 SiPho contract on the table, and that is only the committed portion; management hinted 2028 will be "substantially larger." The question is no longer whether SiPho takes off, but whether 300mm capacity can keep up, which is the real reason Tower took full ownership of Fab 7 in Japan.

MACOM delivered a stunning quarter with book-to-bill hitting a record 1.5. Riding the 1.6T ramp and AI infrastructure build-out, it sharply raised its data center revenue guidance, with optical communications and high-frequency GaN set to drive the next wave of explosive growth.

Corning's quarterly optical communications revenue topped $2 billion for the first time, with Enterprise up 65% YoY. The real story: management has written scale-up into the business plan — fiber content per GPU going from 16 to 160 fibers, plus a new $10 billion photonics platform by 2030. Why does Corning dare say it will "grow faster than GPUs"?

Arista delivered its strongest cash flow ever, yet management said plainly that "demand is the best, supply is the opposite tale." The AI target was raised to $3.5B, Scale-Across data center interconnect was the biggest surprise, and XPO opens the next decade-long optics race.

Ciena's Q2 FY26 revenue grew 40% and gross margin guidance was raised for a third straight quarter, but the real signal is RLS Hyper-Rail winning the industry's first multi-rail order. With a $7.7B backlog, pump laser and CDM modem supply bottlenecks are now the true ceiling.

Amphenol's Q2 FY2026 orders surged to a 1.23 book-to-bill, with all seven end markets positive. IT datacom grew 63% organically, and CommScope flipped from a dilutive deal into the quarter's biggest surprise. Rather than bet on copper vs. optics, Amphenol does it all, becoming the full-stack toll collector of AI interconnect.

Viavi's Q4 FY2026 beat the top of guidance on all three metrics, but the real signal is a new revenue engine: data center plus aerospace & defense drove nearly 70% NSE growth, and telecom capex is no longer the ceiling. Management pulled its $500M quarterly target forward a year as CPO test revenue began.

Celestica grew revenue 62% and EPS 83% YoY with a record operating margin, raising full-year guidance for the second time. The real signal: OpenAI custom rack orders surfaced, AMD Helios scale-up became a multi-billion-dollar pipeline, and 2027 growth is set to be even faster.

Arista posted its first-ever $3B quarter and raised full-year guidance for the third time this year to $12.6B. The real signal isn't AI: it's the return of a core business once criticized as "too flat," and a supply chain that went from complaining to delivering. The battleground is shifting from scale-out to scale-across.

SiTime's Q2 revenue doubled while margins jumped, and CED posted its ninth straight quarter of triple-digit growth. With Renesas' timing business folded in, Q3 guidance leaps to $285–295M. This is no longer "MEMS vs. quartz" — it's precision timing becoming a toll booth on AI infrastructure.

With a 29.9% gross margin and 19.7% net margin, Tower proved this quarter that silicon photonics has gone from narrative to the engine reshaping its profit structure. Record revenue, a SiPh annualized run rate heading for $1B, and dual-track 300mm expansion in Japan lifting the 2028 model to a 33% net margin. Here are the three metrics to track next quarter.

MACOM posted a record quarter with all three end markets growing and book-to-bill at an all-time-high 1.6. It sells chips, not modules, yet sits inside every optical interconnect architecture. Here are the hard numbers and management's real signals in three minutes.

Cisco turned the "AI networking super cycle" from a slogan into a guided revenue line: hyperscale AI infrastructure orders rose 4.5x in a year to $9.3B, and operating margin hit a 30-year high. The real story is how Silicon One plus Acacia optics put it into scale-across, with a direct line to TSMC locking down supply. Next quarter, watch how fast orders convert to revenue.

Who wins the AI chip race barely matters to Advantest — GPUs, custom ASICs and CPUs all end up on the same V93000. Operating margin hit 51.7% this quarter, full-year guidance was raised sharply, and demand visibility now stretches to 18 months. Memory and DRAM costs are the only headwind worth watching.

GF raised its full-year CID growth target from the high 30s to 50–60% and now expects silicon photonics revenue to more than double, while non-IFRS gross margin touched 30% a year ahead of plan. With incremental revenue dropping almost entirely to gross profit, the market has to reprice GF's content, not its capacity.

Semtech's data center revenue topped $100M in a single quarter for the first time, up 91% YoY, and the company guided another 45% jump next quarter. The real shift is not in total revenue but in how 1.6T-generation TIAs, drivers and linear equalizers are redefining this analog veteran. Management says the constraint for FY2028 is no longer demand, but capacity.

Amkor posted record revenue, driven by AI computing and advanced packaging rather than traditional smartphones. CPO joined its technology platform for the first time, and long-term deals with TSMC and NVIDIA tie it to the core of the AI supply chain.

Coherent turned "AI scales on optics" into financial results: accelerating revenue, gross margin up in eight of nine quarters, and leverage down to 0.7x. The real variable is not demand but how fast 6-inch InP capacity ramps.

Innolight beat its full-year 2025 revenue and profit in just six months, with gross margin up 6.63 points to 46.59%. Yet management spent almost the entire call on 2027: orders, first NPO deliveries and the capacity its HK$53.4 billion raise will build.

NVIDIA posted $96.2B in quarterly revenue, up 106% YoY, but the real signal is that its take per 1 GW of data center jumps from $25B to $40B, with the increment all in CPUs and networking. Non-hyperscale customers grew 138% YoY and NeoCloud capacity is heading from 3 GW to 8 GW in a year — that's the order pool for the optical supply chain. The cost: gross margin troughs at 71–72%.