ALGM

Current Thesis

Allegro is mid-re-rating from a sleepy automotive/industrial magnetic-sensor supplier into an AI-data-center-power content story. Data center hit a record 14% of Q4 FY2026 sales (reported 2026-05-07) and management guided it to grow >20% YoY through FY2027. The narrative leg we'd buy is the multiple expansion as sell-side starts valuing ALGM on data-center-peer multiples — Jefferies yanked its PT from $45 → $62 on 2026-05-08, the clearest tell. The catch: the AI mix is still a minority (~14%) of revenue, the rest is cyclical auto/industrial, and the stock (~$50.33 on 2026-06-02) is trading above the $46.20 consensus PT and within 5% of its $52.80 52-week high after a +6.8% session. The thesis is real and accelerating, but the entry is extended and there is no catalyst inside the next 30 days (next print ~late July).

Bull Case

• Data center is the engine. Industrial sales +31% YoY in Q4 FY2026, led by a record data-center quarter (~14% of total Q4 sales). Current-sensor ICs and power management go directly into AI server power delivery and liquid-cooling — a literal pick-and-shovel into the hyperscaler capex buildout. Mgmt guided DC to grow >20% in FY2027 (2026-05-07 call).
• Beat-and-raise quarter. Q4 FY2026 (ended 2026-03-27): sales $243.2M, +26% YoY, beat $235.9M est; non-GAAP EPS $0.17 beat $0.16. FY2026 sales $890M (+23% YoY); non-GAAP EPS $0.54 (more than doubled). Gross margin 50% in Q4, 49.4% FY.
• Guidance carries the momentum. Q1 FY2027 guide (issued 2026-05-07): sales $245–255M (~23% YoY at midpoint), GM 50–51%, non-GAAP EPS $0.19–0.23 vs $0.20 est.
• Sell-side re-rating in real time. Post-print on 2026-05-08: Jefferies $45→$62 (Buy), UBS $52→$55 (Buy), Evercore $49→$53 (Outperform). 12 Buy / 0 Hold / 0 Sell. The Jefferies move explicitly cited applying higher data-center peer multiples.
• Auto/EV recovering, not just AI. Focused auto +30% in FY2026; current sensors for xEV +31% YoY, +16% sequential; new ASIL-C current sensor and EV-inverter wins add dollar content per vehicle.
• Theme tailwind is live. AI-infra/memory complex ripping — Nasdaq 100 cleared 30,000 on 2026-05-26 on Micron's +18% day. ALGM rides the same data-center-capex beta.

Bear Case

• AI exposure is still small. ~14% of revenue is data center; ~86% is cyclical auto + broad industrial. A hyperscaler-capex scare or an auto inventory correction hits the majority of the book, and the AI re-rate doesn't insulate it.
• Price is ahead of fundamentals. ~$50.33 is above the $46.20 average analyst PT and 74% above GF Value ($28.93). The stock has more than doubled off the $22.41 52-week low. Buying here is buying the re-rate after it's been recognized, not before.
• Extended into the high. Within ~5% of the $52.80 52-week high, entering the day after a +6.8% pop with no fresh catalyst = chasing. Classic beginner-trap zone (stretched above MA, near 52-wk high, no catalyst in window).
• No near-term catalyst. Earnings already cleared (2026-05-07); next binary is ~late-July Q1 FY2027. Six weeks of dead-air where the name trades on sector beta, not company news.
• Cyclical margin risk. GM ~50% is near cycle-high; any auto/China-EV softness or pricing pressure pulls it back toward the high-40s and unwinds the EPS story.

Setup & Price Structure

• Last: ~$50.33 (2026-06-02), +6.8% on the session. 52-wk range: $22.41 – $52.80.
• Position vs structure: within ~5% of the 52-week high; more than 2x off the low; trading above the $46.20 consensus PT (street-high $62 Jefferies). Extended above rising MAs — momentum intact but no cushion.
• Levels that matter:
• Breakout trigger: clean weekly close above $52.80 (52-wk high) on volume → continuation leg toward $55–62 PT cluster.
• Failure/double-top: rejection at $52.80 with a lower high = distribution risk.
• Support shelf: ~$44 (post-2026-05-07-earnings breakout base / rising 50-day proxy). Losing it on a weekly close = structure broken.
• Read: ACCELERATING-to-MATURING. Momentum is the setup, but this is not a fresh clean base — it's an extension. Prefer a $52.80 breakout-retest or a 20-EMA pullback to add size; a chase here is a probe at best.

Catalyst Calendar (next 30 days)

• No company catalyst in window (2026-06-04 → 2026-07-04). Earnings already reported 2026-05-07.
• ~2026-07-31 (est.) — Q1 FY2027 print (Q1 FY2026 landed 2026-07-31; the binary that confirms or breaks the data-center >20% guide). Outside the 30-day window.
• Sector reads inside window: hyperscaler capex commentary (NVDA/AVGO/MU follow-through after the 2026-05-26 Micron melt-up), any analog/power-semi peer prints, and Fed/macro rate signals that move high-multiple semis.
• catalyst_date: null — nothing dated inside 30 days.

What Would Change Our Mind

• Bullish add-trigger: weekly close above [entry redacted] on expanding volume, or a controlled pullback to the rising 20-EMA that holds → upgrade toward HIGH.
• Thesis break (exit): data-center revenue growth printing <20% YoY on the ~late-July Q1 FY2027 report — that kills the re-rate rationale.
• Structure break (exit): weekly close below $44 (post-earnings breakout shelf) → cut, don't average down.
• Margin crack: non-GAAP GM slipping below ~49% signals pricing/cyclical pressure.
• Cluster break: AI-power/analog peers (MPWR, VICR, ON) rolling over together = theme flip from ACCELERATING → SATURATED; stand down.

Correlation Notes

• AI-data-center-power / analog cluster: MPWR (Monolithic Power), VICR (Vicor), NVT (nVent) — shares the hyperscaler-power-delivery beta; watch these for cluster confirmation/break.
• AI-capex sentiment beta: NVDA / AVGO / MU — ALGM trades with data-center capex risk-on/off (Micron's 2026-05-26 +18% day is the regime tell).
• Auto/EV semis cycle: ON (onsemi), ADI, TXN, MCHP — the ~86% non-DC book moves with the automotive/industrial cycle and China-EV demand.
• Net: high beta to AI-capex enthusiasm on the upside, but exposed to the broader cyclical semi tape on the downside — it is not a pure-play AI name.