WhiteLine Daily argues that markets are still willing to pay up for future demand, though the way that demand gets priced is starting to split into different paths. Nvidia is using its balance sheet to lock in long-term AI infrastructure demand by agreeing to provide up to $105 billion in residual value guarantees for an OpenAI data center project in Ohio. In China, robotics company Unitree is heading to the STAR Market on August 19 with an issue price of RMB 150.80 per share and a valuation above RMB 60 billion, showing how investors are willing to pull forward growth expectations through valuation. At the same time, Fabrinet’s latest earnings offered a different reminder. The company beat expectations on revenue, earnings, data center growth, and next-quarter guidance, yet its shares still fell about 7% after hours. The report says the market’s attention may be shifting from headline growth to whether that growth is turning into cash. Fabrinet posted roughly $257 million in operating cash flow against $253 million in capital expenditures, leaving only about $4.2 million in rough free cash flow, while inventory rose from about $581 million to $1.021 billion.

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.

Sandisk used its Aug. 13 investor day to lay out a long-range financial model that sits well above market expectations and puts its in-house High Bandwidth Flash, or HBF, at the center of the story. The company said its long-term sustainable model, based on average performance across FY2028 to FY2030, calls for revenue growth in the mid-to-high teens, a Non-GAAP gross margin of about 80%, a Non-GAAP operating margin of roughly 75%, adjusted free cash flow margin near 50%, and capital intensity in the mid-single digits as a percentage of revenue. Mizuho Securities kept its Outperform rating on Sandisk and set a $1,900 price target, arguing that the company’s framework, buyback capacity, and exposure to AI infrastructure support upside. Sandisk also detailed the positioning of HBF, saying the product can deliver comparable read bandwidth to HBM at about one-eighth the cost, while offering 8x to 16x more capacity in a similar package footprint. The company tied that pitch to memory-heavy AI inference workloads and said HBF is meant to work alongside HBM rather than replace it.

Coherent, the U.S. photonics device maker, reported FY2026 fourth-quarter and full-year results for the period ended June 30, posting quarterly revenue of $2.046 billion, up 33.8% year over year. The company framed demand around the shift from copper to optical links in AI data center connectivity, manufacturing expansion, and the ramp of new growth platforms. Still, its public disclosure does not break out quarterly revenue for AI data centers, traditional communications, or other product categories. The reported segment data shows where the revenue increase landed. Data Center and Communications revenue rose by $597 million from a year earlier, while Industrial revenue fell by $81 million, leaving net companywide revenue growth of $516 million. In the quarter, Data Center and Communications contributed $1.615 billion, about 79% of total revenue, though that should not be read as a direct measure of AI optical interconnect revenue. Profitability also improved. Non-GAAP gross margin increased from 38.1% to 40.2%, while non-GAAP operating margin rose from 18.0% to 21.8%. At the same time, FY2026 additions to property, plant and equipment reached $1.103 billion, operating cash flow dropped to $80 million from $634 million, ending inventory climbed to $2.581 billion, and net cash from financing activities totaled $1.477 billion.

Coherent posted fiscal Q4 revenue of $2.05 billion, up 34% year over year, beating its guided range of $1.98-$2.02 billion. Non-GAAP EPS of $1.74 also topped the $1.62-$1.65 forecast. The company's Q1 outlook of $2.20-$2.40 billion in revenue and adjusted EPS of $1.85-$2.05 also came in above consensus. Despite the beat, Coherent shares fell as much as 5% in after-hours trading on profit-taking, after surging 8% in the regular session. The optical-communications giant has rallied sharply in recent weeks as investors bet heavily on an AI-driven boom in data-center optical interconnect demand.

Lumentum reported fiscal 2026 fourth-quarter and full-year results for the period ended June 27, posting quarterly revenue above $1 billion for the first time. The company said AI data centers are driving demand for higher-speed, higher-bandwidth optical links, and revenue has now grown for eight straight quarters. Fourth-quarter revenue rose 109.3% year over year, with both Systems and Components expanding, while management set next-quarter revenue guidance at a midpoint of $1.25 billion. Still, the headline number on the GAAP bottom line moved in the opposite direction. Lumentum posted a GAAP net loss of $7.162 billion, largely tied to a one-time, non-cash loss on debt extinguishment after settling part of its convertible notes in common stock. The company’s non-GAAP gross margin improved to 50.4% from 37.8%, and non-GAAP operating margin climbed to 36.6% from 15.0%, showing operating leverage as revenue scales. In the same report, Lumentum said GAAP operating profit was $279 million, but a $7.757 billion debt extinguishment loss drove the bottom line sharply lower. The company also reported non-GAAP net income of $326 million.

Lumentum reported quarterly results above market expectations, with revenue reaching $1.01 billion, up 109% year over year, and non-GAAP EPS at $3.23 versus the consensus estimate of $2.97. The company also said adjusted gross margin rose to 50.4%, hitting its operating target earlier than planned as demand for 1.6T optical transceivers and 200G electro-absorption modulated laser chips accelerated on AI infrastructure spending. A major focus for investors was co-packaged optics, or CPO. During its earnings call, management said volume demand for ultra-high-power laser chips from a lead customer, along with procurement and delivery of the first external light source modules, is scheduled for the second half of calendar year 2027. That statement pushed back on earlier market concerns that CPO deployment had slipped. Lumentum also described a sharp supply-demand imbalance in ultra-high-power continuous-wave lasers, saying constrained capacity has strengthened its pricing power. To support output, the company is seeking more indium phosphide substrate supply, including from partners such as AXTI. The update spilled into Taiwan’s supply chain, where ABMedia said optical and epitaxy-related stocks moved higher, with HwaCom hitting limit-up and LandMark and Phion rising close to 5%.

Nvidia’s reported decision to reduce the mainstream HBM configuration on its next-generation Rubin Ultra GPU has shaken expectations across the memory sector. According to the source text, the design under evaluation moved from a planned 12-Hi, roughly 384GB HBM setup to an 8-Hi, 192GB version, nearly halving memory capacity per card. The GPU package was also reduced from 4-die to 2-die, with power dropping from 2300W to 1800W. SK hynix ADR fell 4.97% on the day of the news, and its South Korean shares dropped more than 10% the next day. The report places that development alongside a wider pattern in memory equities: record earnings, weaker share prices. Sandisk posted fiscal 2026 fourth-quarter revenue of $8.97 billion, up 372% year over year, yet its shares still fell after guidance for the next quarter came in below market expectations. SK hynix and Samsung Electronics saw similar market reactions despite posting historic profit figures. The article argues that investors are repricing the sector around slowing growth rather than peak profit levels. It also turns to China’s domestic substitution story. CXMT was described as the world’s fourth-largest DRAM supplier by market share, with progress in DDR5 and LPDDR5 and fast capacity expansion, but still lacking large-scale HBM production. That has left it in a different position from Korean HBM leaders, even as it gains ground in mainstream DRAM.