Daily brief

Every weekday morning an AI co-pilot reads the overnight tape across the book, cross-references the catalyst calendar, and writes what moved and why.

• 2026-09-11The rare-earth magnet chokepoint led robotics lower on U.S.–China thaw hopes, while the design-tools layer held a narrow gain.
• 2026-09-10Perception silicon and precision gears led while the battery-and-power chokepoint sold off, with Ambarella out front and Enovix the sharpest decliner.
• 2026-09-09A quiet, mixed robotics session — battery and test names firmed while a software-sector selloff took the simulation layer lower.
• 2026-09-07Motion hardware led on the AI-robotics bid while the design-software chokepoint sold off — PTC missed on revenue and Synopsys fell with rising rates.
• 2026-09-04Tesla jumped on the Cybercab event and a Nevada robotaxi approval, while Ambarella's post-earnings slide led the perception-compute node lower.
• 2026-09-03Symbotic bounced off its lows to lead the integrators while TE Connectivity paced a soft motion-and-sensing tape.
• 2026-09-02A defensive connector maker was the only green as semis, humanoid platforms and the magnet strait sold off in a broad risk-off.
• 2026-09-01Tesla led the humanoid complex higher into its Sept 3 Cybercab event as the actuator suppliers firmed and the last-mile speculatives gave back.
• 2026-08-31The rare-earth-magnet and battery-materials chokepoints sold off in a small-cap risk rotation, with USA Rare Earth lower even after clearing a government-backed deal, while autonomous-delivery name Serve edged up.
• 2026-08-28The simulation-software chokepoint split the session — Synopsys jumped 13% on an AI-driven earnings beat while Unity gave back part of its rally.
• 2026-08-27Precision-motion names led on a firm bearings-and-vision bid while Lynas's rare-earth line fell 6% on FY results.
• 2026-08-26The rare-earth magnet strait led a risk-on rebound with Energy Fuels up 7.3%, while Hyundai slipped 3.1% in its Seoul session ahead of a robotics-focused investor day.
• 2026-08-25The high-beta robotics and automation names sold off in a broad risk-off session, with Serve Robotics down 6.2% and no company-specific news, while the bearings-and-motion suppliers held.
• 2026-08-24A federal critical-minerals package drove the magnet chokepoint, with USA Rare Earth up 12.6% and Tesla up 5.1%, while Allient's post-earnings derating deepened.
• 2026-08-21The humanoid and industrial-automation basket sold off broadly in a risk-off rotation, with Moog down 7.2% leading a fall in the actuator and rare-earth chokepoints while Teradyne edged green.
• 2026-08-20Enovix rose 8.5% on a battery-qualification milestone and the humanoid names ran on a bullish Tesla survey, while the precision-motion choke sold off with the semicap complex.
• 2026-08-19Unity extended a 9-day run up 2.8% at the simulation choke while Enovix sank 12.8% after losing its CEO to Kulicke & Soffa, as semis and motion names sold off broadly.
• 2026-08-17Hyundai jumped 8% in Seoul on a humanoid-business review while Japan's motion-control choke sold off on rotation into Korean humanoid and US vision names.
• 2026-08-14Knightscope surged 9% on a record-revenue quarter and a fresh Buy, while Enovix fell 6% as its Q2 pushed the flagship battery milestone out to year-end.
• 2026-08-13Teradyne rose 6% on the semiconductor-test bid and the Japanese precision-reducer names that build robot joints rallied with it, while Cognex gave back a strong run.
• 2026-08-12Enovix led the actuation-and-power layer up 4% into its earnings, Teradyne and Symbotic firmed, while the vertical's AI-brain proxy Alphabet fell 4% on a compute-side story.
• 2026-08-11The Japanese precision-gear duopoly split on earnings — Nabtesco beat-and-raised while Harmonic Drive sold the news — as Ultralife's record backlog led the battery-and-power choke.
• 2026-08-10Ultralife's earnings sent the power-and-battery choke up 19% and the rare-earth-magnet input names ripped on a reshoring bid, while Serve Robotics cratered 11% after slashing its full-year revenue outlook by two-thirds.
• 2026-08-07The motion-control layer led — Allient jumped 19% on a record-margin beat — while warehouse-automation bellwether Symbotic fell 15% on soft EPS, a session that split the actuator choke from the systems integrator.
• 2026-08-06Regal Rexnord cratered 17% on a revenue miss at the motion-control choke, while Amprius led the tape on a drone-and-robotics battery guidance raise and the humanoid actuator names traded mixed into their prints.
• 2026-08-05Teradyne led on AI-test enthusiasm and the rare-earth-magnet choke ran, while Timken's margin collapse sent the precision-motion laggard sharply lower.
• 2026-08-04A risk-on robotics rally lifted the beaten-down automation names — Serve Robotics led with an oversold bounce — while Fanuc's ADR gave back on a session that was otherwise broadly green.
• 2026-08-03An NXP bid for Ambarella lifted the perception-silicon layer while the Japanese reducer and linear-motion names rallied on DeepMind's Gemini Robotics 2 — the actuator chokepoint led, a low-float security-robot microcap lagged.
• 2026-07-31The semiconductor-test and factory-automation stack rode Thursday's AI melt-up — Teradyne led the basket while the day was so broadly green the laggard barely fell.
• 2026-07-30A hawkish Fed hold sold the high-beta automation complex, but PTC bucked the tape on its Q3 print — a raised ARR guide and $1.6B buyback the market rewarded even as humanoid small caps bled.