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Conclusions are published after independent cross-review.

GNRCGenerac Holdings Inc.
—Full research page

Verdict

Generac is the dominant home standby generator franchise (~70% North American market share) entering a multi-year data center power cycle that could double its C&I revenue by 2028. The residential business provides a durable, weather-event-driven cash flow base with only ~6.5% penetration of US homes, while the new large-megawatt generator lineup (2.25-3.35 MW) positions GNRC to capture a share of the $8B+ data center backup generator TAM. The 2026 Investor Day framework of $6.2-6.6B revenue and $1.25-1.45B adjusted EBITDA by 2028 implies a 15-17% revenue CAGR and mid-20s EBITDA margins, transforming GNRC from a weather-dependent cyclical into a secular infrastructure compounder.

ScenarioProb.TargetDriver
Bull35%$314.00Data center generator revenue exceeds $500M in 2026 -- backlog conversion accelerates beyond raised mid-to-high 20% C&I guidance
Base50%$270.002026 revenue in mid-to-high teens growth range as raised in May 2026 guidance (~$4.9-5.1B)
Bear15%$135.00Below-average hurricane/storm season again -- residential revenue flat or declining

Change history

  • Jun 21View held

    Research-update --rerate --accept-latest-close (manual dispatch, 2026-06-21)

  • Jun 5

    Research-update: (hyperscaler supply agreement + Jefferies upgrade)

  • May 22

    Research-update: (Generac May 2026 guidance raise)

  • Apr 21

    Phase A deep research -- initial coverage

Watching

  • Q1 2026 earnings report — first quarter with meaningful data center revenueMay 662d ago
  • Q1 2026 earnings — C&I growth rate and data center backlog validationMay 662d ago
  • 2026 hurricane season onsetJun 136d ago
  • 2026 hurricane season — above or below average outage activityJun 136d ago
  • EPC Power data center energy solutions first deployment expectedJun 1522d ago
  • EPC Power integrated data center solution deployment
Jun 15
22d ago
  • Hyperscaler data center generator supply agreement announcementsJun 307d ago
  • Q2 2026 earnings reportAug 5in 29d
  • $500M buyback program execution — accretive at current valuationAug 5in 29d
  • 2026 hurricane season peak (August-October)Sep 15in 70d
  • Sussex, WI large-MW generator manufacturing facility expected onlineSep 30in 85d
  • Q3 2026 earnings reportNov 4in 120d
  • 2026 hurricane season end — ACE index vs forecast comparisonNov 30in 146d
  • Q4 2026 / FY2026 earnings reportFeb 10, 2027in 218d
  • Data center backlog shrinks below $700M or management stops citing backlog growth trajectory
  • Two consecutive quarters of below-average power outage activity — residential revenue declines YoY
  • Cummins or Caterpillar win exclusive multi-year generator deals with 2+ hyperscalers
  • Gross margin falls below 36% for two consecutive quarters — tariff or pricing pressure
  • FY2026 EPS tracking below $7.00 at midyear — margin recovery slower than consensus
  • Alternator supply bottleneck delays large-MW generator shipments by >1 quarter
  • 2026 hurricane season ACE index below 70 — well below average, extended residential downcycle
  • Above-average hurricane season materializes (ACE >120) — residential revenue exceeds 10% guided growth
  • Sussex, WI manufacturing facility online ahead of schedule — capacity de-bottlenecked
  • 2026 EBITDA margin exceeds 19% in any quarter — operating leverage proving out
  • EPC Power integrated solution deployed at first data center site with follow-on orders
  • Concerto VPP platform signs first utility-scale virtual power plant contract
  • Q2 2026 C&I revenue growth tracking above mid-to-high 20% (post-raised guidance); confirms data center cooling demand sustains acceleration
  • Q2 2026 EBITDA margin exceeds 19.5% (above raised guide top end) -- operating leverage on data center mix shift
  • Management guides FY2026 again -- if C&I segment growth flattens or rolls back to low-to-mid 20%, data center cooling-driven acceleration reverses
  • Price pulls back toward the base target (~$270 or below) or Q2 2026 confirms C&I sustaining above mid-to-high 20% -- re-rate Hold back to Buy (post 2026-06-21 re-rate at spot $279)
  • Latest notes

    • Jun 21Buy -> Hold; re-anchored to spot $279.15 (+28.5% from April anchor); base target $235 -> $270, bull $295 -> $314
    • Jun 20Research-update 2026-06-20 — Belvidere facility acquisition removes capacity constraint; UBS raises PT to $335; additional DC supply deal
    • Jun 11Generac signs global backup-power supply agreement with unnamed leading hyperscale data center operator (announced June 2, 2026); UBS raises PT to $335 from $305, maintains Buy on June 11, 2026
    • Jun 5Update — Generac signs global hyperscaler backup-power supply agreement; Jefferies upgrades to Buy, PT $302
    • May 22Update — Generac raises 2026 guidance; C&I segment growth accelerates on data center cooling demand

    Options radar

    Concept — illustrative data
    • Jun 30Call$110.00Aug 211,200 ct$540K
    • Jun 30Call$105.00Jul 17800 ct$216K
    • Jun 29Put$95.00Aug 21600 ct$168K
    Unusual volume3.2x 20-day avg call volume
    IV shift30-day IV 41% → 48%

    Positioning skews toward near-term upside