Margin balance in South Korean stock market falls to its lowest level since April.

According to BIT (bit.com) market data, US pre-market optical communication concept stocks are generally rising. Specifically: Pure Photonics ETF (FOTO) gains 3.81%; Marvell Technology (MRVL) rises 6.24%; AAOI (Applied Optoelectronics) climbs 5.07%; LITE (Lumentum Holdings) increases 5.15%; COHR (Coherent Corp.) is up 5.23%; CIEN (Ciena Corporation) gains 3.94%.

The 2026 FIFA World Cup has emerged as a watershed moment for the prediction market industry. According to statistics from BlockBeats, Kalshi’s total platform trading volume during the World Cup reached $54.338 billion, roughly 2.6 times Polymarket’s $20.988 billion. World Cup-related event trading volume stood at $13.591 billion, around 31% higher than Polymarket’s $10.356 billion. In terms of user growth, Kalshi’s app downloads hit 5.368 million, far outpacing Polymarket’s 2.136 million. The exposure effect of Kalshi’s stadium sideline ads is widely viewed as a key driver behind its widening lead. While Polymarket leads in website traffic with 57.44 million visits, it failed to translate this into equivalent advantages in trading volume and app downloads. For other platforms: Predict.fun recorded total trading volume of $1.092 billion, with World Cup-related volume at $886 million; Opinion’s total volume was $1.137 billion, of which World Cup-related activity was approximately $561 million; Limitless had total volume of $446 million, with World Cup-related volume around $220 million. From the data landscape, Kalshi and Polymarket have formed a duopoly, together accounting for over 95% of the total market share. Smaller platforms still face an order-of-magnitude gap in absolute scale. The World Cup’s "Super Bowl effect" on prediction markets is pronounced—during the event, industry concentration further increased, and brand exposure and user acquisition efficiency are becoming core variables shaping the next stage of the competitive landscape.

Samsung Electronics has commenced construction of a Die-to-Wafer (D2W) hybrid bonding production line at its P5 plant in Pyeongtaek, targeting advanced packaging for next-generation High Bandwidth Memory (HBM) and logic semiconductors. Samsung’s top pick for core equipment suppliers is Dutch firm Besi; the company plans to procure around 50 hybrid bonding machines, each priced at roughly 6 billion won (about $4.3 million) — twice the cost of competing products. However, negotiations have moved slowly due to Samsung’s demand for custom modifications to the machine architecture, and Besi, which also supplies TSMC and Micron, is cautious about modifying equipment exclusively for Samsung. Samsung is simultaneously evaluating local alternatives: its subsidiary SEMES has completed development of D2W hybrid bonding machines and delivered samples for validation earlier this year. Hanwha Semitech finished developing its second-generation "SHB2 Nano" in February, and sent samples to SK Hynix in April. Its cluster system integrating Equipment Front End Module (EFEM), plasma activation, and cleaning modules offers distinct competitive advantages. This technology replaces traditional thermocompression bonding with hybrid copper bonding, enabling direct bonding of copper and dielectric materials and drastically shortening interconnect lengths. Its core application is custom HBM: vertically stacking HBM DRAM layers directly on logic dies containing customers’ computing circuits and intellectual property (IP) to form 3D system-in-package (SiP) solutions. Citrini analyst Jukan stated that hybrid bonding is expected to be used in NVIDIA’s next-generation AI accelerator Feynman, which will adopt custom HBM, with the technology’s deployment timeline "pushed back from HBM4E". Samsung’s internal projections indicate large-scale commercialization will not be achieved until around 2029–2030, a timeline that aligns with NVIDIA’s expected window for Feynman.

According to the Financial Times, US President Donald Trump will impose new tariffs on dozens of countries as early as this week.

High-tech industry research firm TrendForce points out that while servers account for over 40% of total NAND flash demand, smartphones and laptops combined still make up nearly 40%, continuing to significantly impact overall demand. On the inventory front, memory manufacturers’ stock levels remain relatively low. Though module manufacturers’ inventories have risen due to weak consumer market conditions, inventories held by other buyers stay controllable. Taking all these factors into account, TrendForce projects the NAND flash bit supply-demand gap will hold at 4%–5% in 2026, signaling ongoing supply shortages. However, the gap is expected to turn positive in the second half of 2027, alleviating supply tightness.

According to monitoring by Beating (Dongcha), China’s National Supercomputing Internet recently launched the Kimi K3 model API calling service. Enterprises and developers can quickly access large language model (LLM) capabilities without cumbersome environment configuration. The API is compatible with OpenAI and Anthropic interface specifications, enabling fast, low-cost deployment of diverse AI applications. Additionally, the Supercomputing Internet has rolled out the 100,000-Creation Plan, providing one-stop Model as a Service (MaaS) offerings.