Core Insights - Physical AI represents the ultimate evolution of AI, with the robotics sector poised for a right-side entry point after three years of underperformance compared to the Nasdaq [3][5] - The robotics ecosystem shows clear value stratification, with the driving layer (e.g., RBC, CW) capturing certainty premiums, the perception layer (e.g., OUST, NOVT) experiencing explosive growth, and companies like Nvidia and Tesla locking in long-term "value-added tax" at the platform layer [3][6] - The recommended strategy is a barbell approach, anchoring investments in the robotics ecosystem with AI giants Nvidia and Tesla while also including stable-margin component stocks like RBC and CW, and speculative perception stocks like OUST [3][6] Investment Timing - The current moment is identified as a singularity for robotics investment, with 2026 expected to be a pivotal year for Physical AI, transitioning from industrial tools to intelligent entities [9][10] - The cost curve for humanoid robots is collapsing, with prices expected to drop significantly due to the scaling effects of core components, enabling broader adoption and investment opportunities [12][13] Value Chain Dynamics - The robotics ecosystem can be divided into three core layers: the driving layer (actuators), the perception layer (sensors), and the integration layer (AI models) [16][22] - Actuators represent the highest cost segment (40%-50%) and are crucial for transforming robots from static machines to active agents, with linear actuators holding significant pricing power [17][18] - The perception layer is evolving from simple visual solutions to complex multi-sensor systems, with companies like OUST and NOVT leading in high-precision sensing technologies [20][21] Investment Recommendations - The focus should be on "shovel stocks" that provide essential components for robotics, which are expected to yield excess profits due to supply-demand imbalances [26][27] - Companies like RBC Bearings, Regal Rexnord, and Curtiss-Wright are highlighted as key players in the robotics supply chain, each with unique technological advantages and strong financial performance [28][29][31] - Nvidia and Tesla are positioned as core components of the robotics ecosystem, with Nvidia's AI platform serving as a foundational element for future developments [42][44]

Group 1 - Investors should be cautious of focusing solely on short-term performance, as it may lead to overlooking significant long-term trends that can impact a company's future trajectory [1] - The case of Regal Rexnord is highlighted as an example where long-term shifts are crucial for understanding the company's potential [1]

Market Overview - Diamond Hill Capital reported a rebound in markets after a downturn in early April, with the Russell 3000 Index showing an approximate increase of 11% [1] - Large-cap stocks experienced the highest growth, rising just over 11%, while small-cap and mid-cap stocks gained around 8.5% each [1] - The Select Strategy portfolio returned 7.31% (net) for the quarter, underperforming compared to the Russell 3000 Index's return of 10.99% [1] Company Focus: Coherent Corp. (NYSE:COHR) - Coherent Corp. is highlighted as a significant contributor to the portfolio, benefiting from increased demand for optical transceivers in data centers [3] - The stock of Coherent Corp. saw a one-month return of 22.97% and a 52-week gain of 21.59%, closing at $107.97 per share with a market capitalization of $16.822 billion on September 29, 2025 [2] - Coherent Corp. was held by 66 hedge fund portfolios at the end of Q2 2025, an increase from 61 in the previous quarter [3] Investment Insights - While Coherent Corp. is recognized for its potential, the company suggests that certain AI stocks may offer greater upside potential with less downside risk [3] - The investor letter indicates a focus on undervalued AI stocks that could benefit from Trump-era tariffs and the trend of onshoring [3]

Core Viewpoint - A significant shift in the global rare earth supply chain is underway, driven by China's stringent control measures against foreign companies hoarding resources, which is reshaping the global industrial landscape [1] Group 1: China's Control Measures - China holds 90% of global rare earth processing and 94% of permanent magnet production, maintaining this dominance for the past decade [1] - Export quotas are being dynamically tightened, with a 157.5% month-on-month increase in rare earth magnet exports in June 2025, but a 38.1% year-on-year decrease [1] - A full-chain traceability system is mandated, requiring all rare earth batches to be recorded, with any untraceable materials deemed illegal [4] Group 2: Impact on Foreign Enterprises - Foreign companies face strategic dilemmas due to strict controls; for instance, a European magnet manufacturer was blacklisted after ordering 300 tons of neodymium-iron-boron [6] - Companies like Regal Rexnord have had to relocate production to China to circumvent export controls, highlighting increased dependency on Chinese manufacturing [6] - Korean automakers have downgraded to lower-performance magnets to mitigate risks, resulting in decreased motor efficiency and increased consumer complaints [6] Group 3: Objectives of China's Regulations - The regulations aim to prevent resource abuse, with past mining practices leading to pollution exceeding standards by 2.5 times [8] - Military-related rare earths are included in control lists, while civilian applications can benefit from expedited approvals through "green channels" [8] - China's export control measures have led to a rebound in rare earth prices, significantly improving domestic company profit margins [8] Group 4: Global Consequences - The automotive industry is facing urgent shortages of neodymium-iron-boron magnets, with some models at risk of production halts [9] - Wind energy projects are stalled due to a lack of permanent magnets, and the U.S. military supply chain is disrupted, forcing the Pentagon to rely on strategic reserves [9] - Historical cases, such as the 2010 ban on rare earth exports to Japan, illustrate the vulnerability of Western nations in the rare earth supply chain [9]