Comerica Incorporated

▲ Bull Case

• ◆Deposit beta of ~71% on the way down enables NIM to sustain at 3.10–3.20% even as Fed continues to cut. The 'free funding floor' effect (NIB deposits cannot cost less than 0%) extends the NIB advantage as interest-bearing deposits compress to near zero.
• ◆NIB deposits stabilize at 38% with Direct Express runoff ($1.1B/yr) absorbed by Texas/Florida organic deposit growth. Commercial operating accounts embedded in treasury management relationships prove sticky due to operational switching costs.
• ◆Buyback acceleration to $500–600M/yr at current $1.5B excess capital level retires 5–6% of shares annually. Combined with modest NII growth, EPS grows from $5.40 (FY 2025) to $7.50+ (FY 2027) — mechanical accretion independent of any NIM expansion narrative.

▼ Bear Case

• ◆NIB deposits continue structural erosion below 32% as Direct Express runs off ($1.1B/yr × 3 years) and commercial CFOs optimize working capital. Every $2B of NIB lost = ~$90M in NII at risk; NIM compresses back toward 2.85% range as rate-cut cycle progresses.
• ◆ROTCE remains stuck at 10–11%, barely covering ~10% cost of equity. The market is already pricing CMA at ROTCE-recovery-to-14% level (P/TBV 1.57x at $88). If ROTCE doesn't break above 12%, P/TBV de-rates to 1.0–1.2x → $55–67/share = -25 to -38% downside.
• ◆A commercial real estate credit event crystallizes into $150–200M in provisions over 1–2 quarters. Combined with NIM pressure, this would force a buyback pause and dividend constraint just as expectations were building for capital return acceleration.

“The Wall Street debate is binary: Is rate sensitivity a trap or an opportunity? The Hold consensus (16% Buy / 63% Hold / 21% Sell, median PT $76–81) reflects analyst uncertainty about whether the Q1–Q2 2025 NIM recovery is cyclical (temporary) or structural (lasting). Bulls focus on deposit beta asymmetry (interest-bearing costs falling faster than asset yields with NIB providing a 0% floor). Bears focus on structural NIB erosion and SOFR-linked repricing downward. The data point that resolves it: NIM in Q3 2025 and Q4 2025. ≥3.10% sustained = bulls win; ≤2.95% = bears win. A secondary debate centers on acquisition optionality given regional bank consolidation backdrop.”

• ◆Q3 2025 NIM ≥ 3.10% confirmation — +10–15% multiple expansion, 60% probability
• ◆NIB % holds ≥35% for 3 consecutive quarters (Q3 2025–Q1 2026) — +15–20% multiple expansion, 55% probability
• ◆Q4 2025 FY 2026 guidance: NII growth +3–5% — +10–15% stock appreciation, 50% probability
• ◆Buyback announcement ≥$600M for 2026 — +5–8% stock, 65% probability
• ◆Regional bank M&A wave with CMA as target — +20–35% acquisition premium, 10–15% probability

• ◆Interest rate sensitivity and NIM compression — 65% probability, HIGH severity
• ◆NIB deposit acceleration below 32% — 35% probability, MED-HIGH severity
• ◆CRE credit event ($150M+ provision) — 25–30% probability, MEDIUM severity
• ◆Recession materializing 2026–2027 — 20% probability, VERY HIGH impact
• ◆Direct Express runoff faster than 3-year plan — 40% probability, MEDIUM severity