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For informational purposes only. Not investment advice.

The Southern Company

SO

NEUTRAL

May 26, 2026

Research Conclusion

Southern Company is the best-positioned regulated utility in the US for the AI data center electrification megatrend — with 11 GW of contracted hyperscaler load, 75 GW prospective pipeline, and Vogtle nuclear (first new US nuclear in 30 years) providing carbon-free 24/7 baseload. At $110/share, the stock is at fair value — the base case is fully reflected at ~24.5x FY2026E adj. EPS. Probability-weighted fair value is ~$109. Rating: HOLD at $110. Add below $95; BUY below $85.

Company Overview & Moat Assessment

The Southern Company (NYSE: SO) is one of the US's largest regulated utility holding companies, serving ~9 million customers across Georgia, Alabama, Mississippi, and Florida through its subsidiaries (Georgia Power, Alabama Power, Mississippi Power, Southern Company Gas). FY2025 revenue was $29.6B; adj. EPS $4.30; dividend $2.80/share (23+ consecutive years of increases). The company's completion of Vogtle Units 3 & 4 (the first new US nuclear power plant in ~30 years) positions it uniquely for the AI data center electrification boom. With ~$122B market cap, ~$74B in debt, and $81B in planned 5-year capex, SO is in a major infrastructure investment cycle that creates rate base and earns regulated returns for decades.

▲ Bull Case

  • ◆Data center contracted load doubles to 20+ GW: Each 1 GW adds ~$600M to rate base earning 10.5% allowed ROE. 20 GW scenario implies $6-7 adj. EPS by FY2030; at 22x = $132-$154.
  • ◆Georgia PSC remains constructive through next rate case: Pre-filing settlement establishes new allowed ROE at 10.0-10.5% with supportive treatment of data center capex, removing regulatory overhang.
  • ◆Nuclear premium re-rates SO's multiple: Vogtle assets attract premium above traditional utility multiples as federal support for nuclear grows; target 26-27x adj. EPS instead of current 24x → ~$120-130.

▼ Bear Case

  • ◆Georgia PSC adversarial rate case (FY2028): Consumer advocacy groups oppose hyperscaler capex in rate base; PSC disallows $5-10B and cuts allowed ROE to 9.0-9.5%; stock re-rates 20x → $84.
  • ◆Interest rate spike (10yr >5.5%): Utilities compete with bonds for income investors; sector P/E compresses 200-400bps; SO at 24x → 20x = $90.
  • ◆AI capex slowdown: Hyperscalers reduce data center investment in 2027; SO's 75 GW pipeline converts at 8% vs. 15%; growth premium evaporates; re-rates to traditional utility multiple (20x).
Primary Debate on Wall Street

“Does SO's data center story justify a premium utility multiple and how durable is it? Consensus (22 Buy, 6 Hold, 0 Sell; PT $115-125) says yes — the nuclear + data center combination justifies 22-26x P/E vs. historical utility 16-22x. Bear pushback: $110 already prices in the story, the rate case is 2 years away with uncertain outcome, and at 2.6% dividend yield you're not adequately compensated for regulatory risk. PWFV confirms stock is at fair value at $110 — not cheap, not expensive.”

Top Catalysts
  • ◆Data center contracted load >15 GW (Q2-Q3 2026) — HIGH magnitude
  • ◆FY2026 adj. EPS raised above $4.60 (Q2 2026 earnings) — MEDIUM magnitude
  • ◆Georgia PSC pre-filing settlement signals (2027) — VERY HIGH magnitude
  • ◆Fed rate cuts, 10yr back to 4.0-4.2% (H2 2026) — MEDIUM magnitude
  • ◆SMR/nuclear expansion announcement (2027-2028) — MEDIUM-HIGH magnitude
Top Risks
  • ◆Adversarial Georgia PSC rate case (MEDIUM probability, HIGH severity) — Consumer advocacy mobilizing; rate freeze ends ~2028
  • ◆Interest rate spike >5.5% (10yr) (LOW-MEDIUM probability, MEDIUM severity) — Utility sector compression risk
  • ◆AI capex slowdown → pipeline stalls (LOW-MEDIUM probability, MEDIUM severity) — 11 GW contracted provides downside cushion
  • ◆Capex overrun / cost increase (LOW probability, MEDIUM severity) — Post-Vogtle focus is data center with less new build risk
  • ◆Equity dilution > $2B/yr (LOW probability, LOW severity) — Management committed to $1.8B cap

Full Memo Continues

5 more sections, locked

  • ●
    Valuation Range & DCF
    Base/bull/bear fair-value range, WACC, terminal growth, sensitivity to revenue + margin assumptions.
  • ●
    Risk/Reward Assessment
    Position-sizing framework with explicit upside/downside skew and entry conditions.
  • ●
    Management & Capital Allocation
    Multi-year capital-allocation track record, incentive alignment, and management readout.
  • ●
    Monitoring Framework
    What to watch each quarter — leading indicators and inflection signals tracked by the analyst.
  • ●
    Unresolved Questions
    Open analyst questions and follow-up research items — the depth signal.

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Margin of Insight

For informational purposes only. Not investment advice.