Skip to content
orbyd

Dossier · MTSI · Dormant

MTSI

HIGH a2Cyclical recovery

Last analysed · · source: watchlist_research

Current thesis

AI optical-interconnect picks-and-shovels narrative accelerating: MACOM raised FY26 data-center growth from 35-40% to >60% on the Q2 call (reported ~late Apr) and guided Q3 rev +~15% QoQ to $331-339M. Strength is the setup — but it''s +214% YoY and the next binary (Q3 print) is ~2026-07-30, ~8 weeks out.

Invalidation trigger

Weekly close below ~$340 (rising 50-day); OR Q3 print 2026-07-30 revenue below $331M guide-low or data-center growth cut back under 60%; OR optical peers CRDO/ALAB/COHR break their 50-day together (theme→SATURATED).

Thesis status

Open commitment scored if the trigger above fires How this is scored →

Current Thesis

MACOM is the analog/photonics arms-dealer to the AI optical-interconnect buildout — TIAs, laser drivers and DSPs feeding 800G / 1.6T / 3.2T datacenter links. The narrative is accelerating, not maturing: on the Q2 FY26 call (qtr ended 2026-04-03), management raised the FY26 Data Center growth guide from 35-40% to >60% — a mid-year acceleration, which is the single most important tell in this dossier. Q3 guide (rev $331-339M, +~15% QoQ; adj EPS $1.31-1.37) confirms the slope is steepening, not flattening. We'd be buying the optical-interconnect leg alongside the whole group (COHR/LITE/CRDO/ALAB). Strength is the setup. The two knocks: it's already +214% YoY and the next hard catalyst (Q3 print) is ~2026-07-30, ~8 weeks out — so a fresh entry here is holding tape through a catalyst vacuum.

Bull Case

  • DC guide raised mid-cycle (Q2 call, ~late Apr 2026): FY26 Data Center growth lifted from 35-40% to >60%. Narratives that re-accelerate mid-year are exactly what this playbook hunts.
  • Q2 FY26 beat (ended 2026-04-03): revenue $289M, +22.5% YoY, beat $285M consensus; adj EPS $1.09 vs $1.07 est; margins expanding YoY.
  • Q3 FY26 guide (qtr ends 2026-07-03): revenue $331-339M (~+15% QoQ at midpoint), adj GM 59-60%, adj EPS $1.31-1.37. Sequential acceleration, not a plateau.
  • TTM scale: revenue $1.07B, +27% YoY; market cap $28.7B, +214.6% YoY (~3x).
  • Product leadership at OFC 2026: showcased 3.2T optical transmit, 1.6T ecosystem, and 448G/lane drivers — front-running the next interconnect speed node.
  • IQE LTSA (May 2026): £45M equity/convertible commitment locking GaAs + InP wafer supply — vertical supply security ahead of the 1.6T volume ramp.
  • Sell-side PT cluster: Barclays Overweight, PT → $450 (2026-05-22); Evercore $427; consensus ~12 Buy / 3 Hold / 0 Sell. Clustered upgrades = narrative going mainstream-but-not-yet-saturated.

Bear Case

  • Valuation is rich: 161x trailing P/E, ~60x forward. Fine while the story accelerates — but any DC-growth wobble de-rates this hard and fast.
  • Extended tape: +214% YoY, printed a 52w high of $418.90, now $375.86 (-3.71% on 2026-06-04) — ~10% off the high. Froth/digestion risk.
  • Catalyst vacuum: next print ~2026-07-30 (~8 weeks out). A fresh long here rides pure tape and group beta until then.
  • Theme-rotation risk: trades as a pack with COHR/LITE/CRDO/ALAB; a group rollover drags MTSI regardless of its own fundamentals.
  • Hyperscaler-capex concentration: the >60% DC guide assumes AI optics orders don't pause/digest. A single hyperscaler pushout dents the thesis.
  • IQE dependency: the £45M lifeline implies a financially-stretched key supplier — concentration + counterparty risk in the supply chain.

Setup & Price Structure

  • Price $375.86 (2026-06-04), -3.71% on the day. 52w range $118.16 – $418.90; sitting ~10% below the high.
  • Uptrend firmly intact: rising 50-day (~$340 area), far above the 200-day. Beta 1.60 — moves hard both directions.
  • Not a blowoff-top read — the stock has cooled off its May overbought condition with the pullback off $418.90, so RSI is no longer pinned. A clean retest of the $340-350 shelf would be a higher-probability add than chasing [entry redacted] into an 8-week catalyst gap.
  • This is an ACCELERATING + cluster-confirmed name, so "extended / near highs" is confirmation, not a reason to defer. The legitimate hesitation is purely timing (no near-term catalyst), not thesis.

Catalyst Calendar (next 30 days)

  • ~June 2026 (soft, unconfirmed): investor-conference circuit (BofA Tech / Mizuho / Rosenblatt summits) — possible incremental DC-ramp color. Treat as soft.
  • 2026-07-03: fiscal Q3 quarter-end (no print; sets up the report).
  • 2026-07-30 (OUTSIDE 30-day window): Q3 FY26 earnings — THE binary. Must hit $331-339M rev and defend the >60% DC growth bar. No earnings risk inside the next 30 days.

What Would Change Our Mind

  • Weekly close below ~$340 (rising 50-day / breakout shelf) → momentum break, step aside; do not average down.
  • Q3 print (2026-07-30) revenue below $331M guide-low, OR DC growth guide cut back under 60% → narrative deceleration, exit.
  • Optical peers CRDO / ALAB / COHR breaking their 50-day together → theme flipping toward SATURATED; trim into it.
  • IQE distress / supply-disruption headline → supply-chain leg of the thesis cracks.
  • Upside trigger: weekly close back above [entry redacted] → fresh breakout, add on the reclaim.

Correlation Notes

  • High beta to the ai-optical-interconnect cohort: COHR, LITE, CRDO, ALAB, POET — they move as a pack; size with that correlation in mind, don't double up across the group.
  • Ecosystem-linked to AVGO / MRVL DSPs (interoperability partners) and to hyperscaler capex (NVDA/AVGO demand pull); correlated with SOX/SMH semis tape.
  • IQE (IQEPF) now a linked counterparty post-LTSA — watch IQE for supply-side reads.
  • Defense/RF segment provides modest non-AI ballast (less correlated to the optical group), but DC is the swing factor for the stock.