Weekly Market Observation: Leading Stocks Accelerate Rotation as Three AI Infrastructure Themes Emerge
The S&P 500 surged 10.4% in April, the Nasdaq 15.3%. Screening 867 stocks under the CANSLIM framework, 71 passed all six strict thresholds — an 8.2% pass rate. Three AI infrastructure themes are now clear: power infrastructure, the semiconductor supply chain, and electronics contract manufacturing, as capital concentrates into the AI compute expansion chain.
I. Broad Market Trend and Sentiment
April was an unusually strong month by recent standards. The S&P 500 rose 10.4% for the month, closing at 7,209 — its best single-month performance since November 2020; the Nasdaq gained even more, up 15.3%, also its strongest showing since April 2020. The Dow Jones Industrial Average closed the month up 7.1%, with the market's recovery strength exceeding most expectations.
The rally was not without turbulence. In mid-April, tensions between the US and Iran suddenly escalated, Brent crude briefly spiked to $95 a barrel, and the VIX fear gauge jumped as much as 12% in pre-market trading, triggering a brief pullback. However, as signals of renewed ceasefire talks emerged, the market absorbed the shock within less than two trading days and pushed to new highs again before month-end. The VIX has since retreated to 18.92, still slightly above its long-term average, suggesting sentiment is stabilizing even as investors remain cautious.
The core narrative driving this rebound was a strong earnings season. Early reports from bellwethers such as Alphabet and Caterpillar broadly beat expectations, with the Communication Services sector posting an 18.4% gain in April — the strongest of any sector. Sustained AI infrastructure build-out demand remains the most important structural pillar behind this rally.
II. Individual Stock Breadth Signals
This week's scan covered 867 stocks across six research watch lists. Under ProfitVision LAB's six strict momentum-stock screening thresholds, 71 stocks passed — a pass rate of roughly 8.2%. Week-over-week, 25 new names entered the list while 39 dropped out, a turnover rate above 50%, the largest rotation so far this year.
The most noteworthy signal comes from the Near Pivot candidate list: it registered zero this week, with none of the 19 candidates simultaneously meeting both the fundamental and momentum criteria. A pivot point refers to the key price level at which a stock breaks out upward from a consolidation pattern — the low-risk entry zone most favored under the CANSLIM system. This week's zero reading suggests the market is in a structural digestion phase — leading stocks continue to hold firm, but new low-risk entry opportunities are narrowing. This does not signal a trend reversal, but rather that the market needs time to consolidate after its advance.
By contrast, the Near New High list still had 36 names pass, slightly above last week's 34. Existing leaders continuing to hold near their highs is a positive sign of bullish resilience — meaning current leadership is still strengthening, even as brand-new breakout opportunities have temporarily thinned out.
III. Week-Over-Week Rotation: Old Guard Steps Aside, New Names Step In
Among the 39 names that dropped out of the list this week, several deserve particular attention. AMD and ARM exited simultaneously — both flagship names in the AI semiconductor space. The exits were not driven by fundamental deterioration but by RS momentum ratings or A/D accumulation/distribution ratings falling short of the threshold. This suggests capital is rotating away from the broad "AI concept" umbrella toward more specific beneficiaries of AI infrastructure. Also exiting simultaneously were FN (Fabrinet), UI (Ubiquiti), and PH (Parker Hannifin) — the latter two have appeared frequently on the watch lists in recent weeks.
Among the 25 new entries this week, TSM (Taiwan Semiconductor), VRT (Vertiv), NVT (nVent), PWR (Quanta Services), CLS (Celestica), SIMO (Silicon Motion), MRVL (Marvell), and MPWR (Monolithic Power) appeared prominently in a cluster, further reinforcing the "power infrastructure × semiconductor supply chain" dual-theme structure.
IV. Sector Themes: Three Clear Directions for Capital
Theme One: Power Infrastructure. Power demand from AI data centers continues to surge. VRT (power management), NVT (electrical components), PWR (electrical engineering services), EME (EMCOR, electrical contracting), IESC (IES Holdings), and POWL (Powell Industries) — six names — appeared together across multiple lists, with Comp/EPS/RS ratings all at a top-tier 99. What sets this theme apart is that earnings growth is driven by tangible engineering orders rather than valuation narrative, giving it a degree of defensiveness even amid ongoing interest-rate uncertainty.
Theme Two: Semiconductors — but Not AI Chip Designers. The strongest semiconductor names this week were SIMO, MRVL, MPWR, VICR, and AVGO. Their common trait: they sit at critical nodes in the semiconductor supply chain (storage controllers, networking chips, power management ICs), benefiting directly from the AI server build-out without taking on the high valuation risk of AI chip design.
Theme Three: Electronics Contract Manufacturing and Components. CLS (Celestica) and BELFB/BELFA (Bel Fuse) appeared on the Recent Breakouts list this week, representing manufacturers that supply AI server assembly demand entering a new breakout rhythm. Supply-chain localization and expanding server shipment volumes are the twin engines behind this. Notably, both of Bel Fuse's share classes (Class A and Class B) appeared simultaneously with comparable ratings — a rare occurrence in screening results that reflects broad institutional recognition of the company overall, rather than a coincidence affecting a single share class.
These three themes are not isolated — they revolve around the same central thesis: the physical infrastructure demand driven by AI compute expansion — forming a complete chain from chip design (semiconductors) to manufacturing and assembly (contract manufacturing) to power delivery (power infrastructure). This structure has gradually emerged over the past two quarters, and this week's screening results serve, to some degree, as a reconfirmation of that logic chain.
V. Names to Watch (Not Trading Recommendations)
The following names passed the strict screens of multiple qualitative research lists this week simultaneously and were assessed fundamentally using the PV Rating System (ProfitVision Rating System). The PV Rating comprises three metrics: PV Institutional Sponsorship Strength (measuring capital flow, 1–99 percentile), PV Relative Strength (a stock's 52-week return ranked by percentile against the broader market), and PV Earnings Quality Score (a weighted grade from A–E based on revenue growth, net margin, and ROE). Readers should independently assess entry timing and position sizing based on their own account size, risk tolerance, and existing holdings.
The name with the strongest signal strength across multiple qualitative research lists this week, appearing on both the breakout and pullback-consolidation lists — indicating the technical pattern is in an offensive posture. Its core business is NAND flash storage controllers, making it a direct beneficiary of the AI storage device expansion wave — surging demand for high-speed storage on the AI inference side is rapidly lifting NAND controller shipment volumes. PV Institutional Sponsorship Strength remains in a strong range with steady, continuous capital inflows; PV Earnings Quality is preliminarily assessed at A–B (margin recovery driven by a rebound in NAND supply-demand dynamics, with a clear improving trend in ROE). Entry timing and sizing are left to the reader's own judgment.
All three appeared together across multiple qualitative research lists and are currently consolidating near key moving averages, with PV Institutional Sponsorship Strength remaining robust. The business logic is highly clear: AI data centers' power density is 5–10 times that of traditional servers, and power management (VRT), electrical components (NVT), and electrical engineering services (PWR) together form the "plumbers and electricians" of AI infrastructure build-out, with demand visibility backed by physical engineering contracts. All three are preliminarily assessed at PV Earnings Quality grade A, with VRT in particular showing a sustained upward trend in ROE over the past two years, and PWR carrying order visibility of 12 months or more.
Appeared across multiple qualitative research lists this week and is among the new entries. Its core business is AI custom chip (Custom ASIC) design and cloud storage chips, making it a chip design partner to hyperscalers such as Amazon AWS and Google Cloud. Its simultaneous entry alongside AMD's exit echoes the broader market trend of capital rotating from general-purpose AI chips toward custom supply chains. PV Relative Strength ranks near the top of the market; PV Earnings Quality is preliminarily assessed at B–A (Custom ASIC business is scaling rapidly, though the pace toward positive earnings still requires confirmation from a full quarterly report).
A new entrant across multiple qualitative research lists this week, with its technical pattern showing renewed capital inflow after consolidating near the 10-week moving average. TSMC is the final manufacturing node in the AI chip demand chain — whether it's Nvidia's GPUs, Apple's SoCs, or various Custom ASICs, all ultimately require TSMC's advanced process nodes. PV Earnings Quality is assessed at grade A (3-year revenue CAGR above 20%, net margin around 40%+, ROE sustained in the 25–30% range over the long term); PV Institutional Sponsorship Strength, adjusted for liquidity given its large-cap status, is assessed as solid, with PV Relative Strength near the top of the overall market.
VI. Signals to Watch Next Week
Two signals warrant continued tracking next week. First, whether the Near Pivot list can recover with strong new names. If it remains at zero for more than two consecutive weeks, that would confirm the market has formally entered a digestion phase, in which case the importance of the second buy point (a pullback to the 10-week line) would rise significantly — the consolidation structure in the power infrastructure sector in particular bears watching.
Second, whether this week's breakouts on the Recent Breakouts list get confirmed by volume. VICR, SIMO, BELFB, and CLS all just completed breakouts this week; whether volume follow-through continues will determine whether these names can truly launch a sustained trend move, or whether this was merely a brief technical breakout.
Overall, this week's signal mix can be summed up in one line: the backbone of the bull market remains intact — only the quality of entry opportunities has shifted, from "fresh breakouts" toward "second buy points after strong consolidation." The corresponding mindset for execution needs to adjust accordingly. Rather than chasing breakouts that haven't yet occurred, it may be more productive to patiently watch whether leading stocks consolidating near their 10-week lines are rebuilding volume — this often offers a more favorable risk-reward entry structure.