RBB Bancorp (RBB) - Due Diligence

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71OpportunityDD: Jun 23, 2026Analyst: 78

paidPrice at analysis date

USD 25.5 (23/06/2026)

domainMkt cap

$431.36M

pie_chartShares

16.94M

candlestick_chart52W

$16.40-$26.12

trending_downShort interest

1.0%

INFONASDAQFinancials369 employeesFounded 2008

Verdict: Favorable Risk/Reward —

Small-cap Asian-American community bank with Q1 2026 EPS beat of +46% ($0.66 vs $0.45), 5 consecutive quarters of NIM expansion (3.15%), trading at 0.95x tangible book ($26.84 TBV/sh vs $25.50 close) and forward P/E of 11.3x — broadly in line with peer median. After +58% 1-yr rally, most VALUE re-rating is already priced; capital actions ($25M buyback authorized, $40M sub debt redemption) support TBV accretion. Upside modest (~12-15%), downside anchored by TBV floor.

📊 DIANALITICS RESEARCH INDEX Company & Thesis Assessment Score /100 — updated 2026-06-23

RBB Bancorp (RBB)

Banks – Regional · NASDAQ · Los Angeles, CA

"Solid fundamentals, post-rally fair valuation, capital actions provide downside support."

P/TBV 0.95x EPS +46% beat ROE ~9% (rising) $25M buyback 5Q NIM expansion

Fin. strength

/20 pts

EBITDA/FCF

/15 pts

Debt/leverage

/15 pts

Stage/business

/15 pts

Catalysts

/10 pts

Reg. risk

/8 pts

Risk/reward

/7 pts

Management

/5 pts

Sector/macro

/3 pts

Compliance

/2 pts

💡 Fair Value Estimate — P/TBV peer-based, cross-checked with Forward P/E

Fair value base case

USD 28.2

Range: USD 22.0-USD 34.0

Price at analysis date: USD 25.5 (23/06/2026)

Base upside/downside: +11%

Methodology: P/TBV is the primary fair value method for community banks because tangible book is the true liquidation/franchise floor. Implicit multiple 1.05x TBV is within ±20% of peer median 1.05x (exact alignment). Cross-check via Forward P/E (11.3x × $2.50 = $28.25) converges within $0.05 of base FV. Sensitivity to ±0.1x P/TBV is ±9.5%, well within stability band. Scenarios weighted by FATTORIALE-VALUE framework: Base 55%, Bull 20% (cyclical upside), Bear 25% (credit cycle risk). ⚠️ Not investment advice.

Component	Assumption	USD/share
Tangible book value foundation	TBV/sh $26.84 (Mar 31, 2026) × 1.00x peer-median P/TBV (HAFC 0.95x, CATY 1.18x, PFBC 1.45x mediana ≈ 1.05x; haircut 5% for ROE 10% vs PFBC 17%)	+26.84
TBV accretion 12M forward	$2.50 EPS − $0.64 div = $1.86 retained × 16.94M sh = $31.5M added to TBV; +$1.86/sh	+1.86
Buyback accretion to TBV	$25M / 1.0M sh @ avg $25 = ~6% share reduction × TBV $26.84 ≈ +1.5% to TBV/sh net of cost	+0.40
Subordinated debt redemption uplift	$40M × 4.0% = $1.6M interest saved/yr; after-tax ~$1.2M = $0.07 EPS × 11x P/E = $0.78; haircut for refinancing assumption	+0.50
ROE re-rating option	If Q1 2026 ROE 9.5% annualized sustained 2H 2026, P/TBV could expand to 1.10x (vs 1.05x base): TBV $26.84 × 0.05 incremental = +$1.34; 50% probability applied	+0.67
Deposit concentration discount	~30% of deposits >$250K threshold (insured deposits ~70%); haircut for re-pricing risk in stress scenario	−2.10
FV base case	Sum: 26.84 + 1.86 + 0.40 + 0.50 + 0.67 − 2.10 = 28.17 ≈ $28.20	≈ $28.20

Bull

$32–$34

Probability: 20%

NIM expansion sustains into 2H 2026 (3.30%+), ROE breaks above 12%, P/TBV re-rates to 1.20x. EPS hits $2.70+ on accelerating loan growth. Buyback fully executed.

Base

$27–$29

Probability: 55%

NIM stabilizes at 3.10-3.20%, EPS ~$2.40-2.60. P/TBV mean-reverts to peer median 1.05x. Buyback partial execution, debt redemption completed Jul 1.

Bear

$20–$22

Probability: 25%

Credit cycle turn hits CA commercial real estate exposure, NPLs spike, NIM compresses on rate cuts. P/TBV drops to 0.80x. EPS reverts to $1.80-2.00 zone.

Methodology: Methodology: P/TBV is the primary fair value method for community banks because tangible book is the true liquidation/franchise floor. Implicit multiple 1.05x TBV is within ±20% of peer median 1.05x (exact alignment). Cross-check via Forward P/E (11.3x × $2.50 = $28.25) converges within $0.05 of base FV. Sensitivity to ±0.1x P/TBV is ±9.5%, well within stability band. Scenarios weighted by FATTORIALE-VALUE framework: Base 55%, Bull 20% (cyclical upside), Bear 25% (credit cycle risk). ⚠️ Not investment advice. Not investment advice.

⚠️ Methodology note: For a community bank holding company, fair value is anchored on Price/Tangible Book Value (P/TBV) cross-checked with Forward P/E vs Asian-American banking peer set (CATY, PFBC, HAFC). Gross margin and free cash flow are not meaningful banking metrics; NIM, ROE, ROA, NPL ratio, and TBV/sh growth are the relevant operational KPIs.

📊 Capital Structure · Short Interest · Buyback & Dilution

🟢 Short Interest

~1.0%

Last reported Mar 2026. ~170K shares short on 16.94M outstanding. Days-to-cover 2.4. Very low — no squeeze setup, no bearish positioning of significance.

🟢 Share dilution (1Y)

−4.5%

From ~17.74M to 16.94M shares (Jun 2025 → Jun 2026). Net reduction driven by completed $18M buyback program exhausted Q2 2026. Counter-dilutive.

🟢 Buyback

$25M new

Authorized 2026-06-15: up to 1.0M shares (~6% of OS) through 2026-06-30/2028. Previous $18M plan exhausted Q2 2026. Aggressive capital return signal.

Short Interest — context

RBB — 1.0%

1.0%

Interpretation: SI <5% = low. No meaningful short positioning means the +58% 1-yr move is not contaminated by squeeze dynamics — it is fundamental re-rating. Combined with active buyback and zero insider selling >$500K in 12M, capital structure is investor-friendly. Insider activity 12M: All Form 4 filings are RSU grants/exercises (Frank Wong 2,546 RSU exercise May 2026; Director Bennett Bill 700 RSU exercise; CEO Johnny Lee equity updates only). No material open-market sells or buys >$500K.

$Financial analysis — FY 2026

Net Interest Income Q1'26

$30.5M

+3.4% QoQ · +66% YoY

NIM Q1'26

3.15%

+16 bps QoQ (5th consec quarter)

TBV / share

$26.84

+1.6% QoQ vs $26.42

Q1'26 Net Income

$11.3M

EPS $0.66 vs $0.45e (+46%)

Item	FY2023	FY2024	FY2025	FY2026E	Guidance 2026
Revenue ($M)	119.3	99.4	113.6	~140	High single-digit loan growth
Net Income ($M)	42.5	26.7	31.95	~43	NIM stable 3.10-3.25%
Diluted EPS ($)	2.24	1.47	1.83	~2.50	—
NIM (%)	2.81	2.45	2.86	3.15-3.20	Continued expansion expected
ROE (%)	11.3	5.1	6.4	~9.5	Trending toward 10%+
NPL ratio (%)	0.5	0.8	0.7	0.6-0.7	Continued improvement

2024 was the trough year (NIM compression + credit costs). Recovery began Q1 2025 and accelerated through Q1 2026 with EPS beat of +46%. FY2026E is annualized from Q1 run-rate, conservative.

Quarterly dynamics — last 5 quarters
Metric	Q1 2025	Q2 2025	Q3 2025	Q4 2025	Q1 2026
Revenue ($M)	21.7	28.2	31.9	31.7	34.95
NIM (%)	2.55	2.70	2.85	2.99	3.15
Net Income ($M)	2.3	9.3	10.15	10.18	11.30
TBV/sh ($)	25.10	25.55	26.00	26.42	26.84

Financial position and sustainability

CET1 capital ratio

~17.0%

Total capital ratio

~21.0%

Loan / deposit ratio

~92%

Efficiency ratio

~55%

NPL ratio Q1 2026

0.7%

account_tree

Business model — Asian-American community banking

Niche community bank franchise with $3B+ asset base serving Asian-American business communities

RBB Bancorp is the holding company for Royal Business Bank, a community bank focused on Chinese-American, Korean-American and other Asian-American communities across California (LA, OC, Ventura), Hawaii (Honolulu), New York (Manhattan, Brooklyn, Queens), Illinois (Chicago), and New Jersey (Edison). The bank offers traditional deposit products, commercial & investor real estate loans, SBA loans, single-family residential mortgages, trade finance for Asia-US flows, and treasury management. Founded 2008, IPO July 2017. Sticky deposit franchise due to language/cultural moat, with deposit costs structurally below pure-prime-market peers.

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Legal, regulatory and risk analysis

CRE concentration (California)

High

Significant commercial real estate exposure concentrated in CA markets. Office segment in particular remains under pressure. Mitigant: granular loan portfolio with conservative LTVs and low historical loss rates in Asian-American CRE niche.

Deposit concentration / uninsured

Moderate

~30% of deposits estimated above FDIC $250K threshold. Mitigated post-2023 by retail deposit growth, reduced wholesale funding mix, and strong liquidity buffer. Q1 2026 saw deposit mix improvement.

Geographic concentration in CA

Moderate

~70% of operations in California, exposed to state-specific economic cycles (tech downturns, immigration policy changes, real estate cycles). NY/IL/HI presence provides limited diversification.

Interest rate sensitivity

Moderate

NIM expansion benefited from Fed rate environment. Rate cuts in 2026-27 would compress margins. However, RBB has demonstrated ability to manage liability costs (5 consec quarters NIM expansion).

Capital position

Positive

CET1 ~17%, Total capital ~21% — well above regulatory minimums. Supports $25M buyback authorization + $40M sub debt redemption simultaneously. Excess capital position is a competitive advantage.

Credit quality trends

Positive

NPL ratio declining (0.8% → 0.7%), provisions normalizing, charge-offs under control. Q1 2026 credit costs significantly improved YoY. Cycle-position favorable.

Litigation / regulatory

Low

No active class actions, no SEC investigations, no short-seller reports identified in last 12 months. Standard bank regulatory exam posture, no consent orders or MOUs disclosed.

Valuation post-rally

Moderate

+58% 1-yr return prices in much of the recovery thesis. Forward P/E 11.3x and P/TBV 0.95x are reasonable but not deeply discounted. Consensus $25.67 average target implies only modest upside.

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SWOT analysis

Strengths

+Niche Asian-American banking franchise with cultural/language moat and sticky deposits
+5 consecutive quarters of NIM expansion (2.55% → 3.15%, +60 bps)
+Strong capital position (CET1 ~17%) supports buyback + debt paydown simultaneously
+Trading at 0.95x TBV — discount to peers offers downside anchor
+Q1 2026 EPS beat of +46% with broad-based improvement across metrics

Weaknesses

−ROE ~9% still below best-in-class peers (PFBC 17%, CATY 10.6%)
−Small scale ($431M mcap) limits institutional ownership and float liquidity
−High CRE concentration including office in California
−2024 was a trough year (NI $26.7M vs $42.5M in 2023) — earnings volatility history

Opportunities

→Continued NIM expansion could push ROE above 10% (P/TBV re-rate trigger)
→$25M new buyback execution + 6% share count reduction over 2 years
→$40M subordinated debt redemption (Jul 1, 2026) eliminates 4.0% interest cost
→M&A consolidation: small Asian-American banks are typical bolt-on targets for larger regional banks
→Cross-border trade finance growth as US-Asia commerce normalizes

Threats

!Fed rate cuts in 2026-27 could reverse the NIM expansion trend
!CRE credit cycle deterioration (CA office, commercial)
!Regional bank deposit run risk (2023 SVB-style events)
!Higher capital requirements from Basel III endgame finalization

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Summary by assessment area

🟢 Financial risk — LOW

CET1 ratio ~17%, well above regulatory minimum (excess capital ~$100M deployable)
5 consec quarters NIM expansion, ROE trending toward 10%+
TBV/sh growing ($26.42 → $26.84 in Q1 alone, +1.6% QoQ)
Net income +95.8% YoY TTM ($21M → $40.96M)

🟡 Valuation risk — MODERATE

Trades at 0.95x TBV (peer median 1.05x) and 11.3x forward P/E — modestly discounted
+58% 1-yr return has priced in most of the recovery thesis
Consensus avg target $25.67 implies only +0.7% upside vs $25.50 close
Base FV $28.20 implies +10.6% — fair, not asymmetric

🟡 Cyclical / sector risk — MODERATE

CA-centric CRE exposure (office segment under pressure)
Bank deposit risk in stress scenarios (~30% uninsured deposits)
NIM expansion may reverse if Fed cuts rates aggressively in 2H 2026
No litigation, no class actions, no regulatory enforcement — clean compliance

{ "verdict_label": {"it": "Giudizio: Risk/Reward Favorevole", "en": "Verdict: Favorable Risk/Reward"}, "verdict_text": {"it": "RBB Bancorp è una banca community small-cap Asian-American con Q1 2026 EPS in beat del +46% ($0.66 vs $0.45), 5 trimestri consecutivi di espansione NIM (3.15%), prezzo a 0.95x tangible book — quotazione equa post-rally +58% YTD.", "en": "RBB Bancorp is a small-cap Asian-American community bank with Q1 2026 EPS beat of +46% ($0.66 vs $0.45), 5 consecutive quarters of NIM expansion (3.15%), and trading at 0.95x tangible book — fair valuation after +58% 1-yr rally."}, "bull_points": [ {"it": "Q1 2026 EPS $0.66 batte stima $0.45 (+46%); 5 trim. consec. di espansione NIM a 3.15%", "en": "Q1 2026 EPS $0.66 beats $0.45e (+46%); 5 consec quarters of NIM expansion to 3.15%"}, {"it": "Buyback $25M (~6% OS) + redemption $40M debito sub. supportano TBV accretion", "en": "$25M buyback (~6% OS) + $40M sub debt redemption support TBV accretion"}, {"it": "Prezzo a 0.95x tangible book ($26.84/sh) — sconto vs mediana peer 1.05x", "en": "Trades at 0.95x tangible book ($26.84/sh) — discount to peer median 1.05x"} ], "bear_points": [ {"it": "ROE ~9% inferiore a peer best-in-class (PFBC 17%, CATY 10.6%)", "en": "ROE ~9% below best-in-class peers (PFBC 17%, CATY 10.6%)"}, {"it": "+58% rally 1Y prezza già gran parte della tesi di recovery", "en": "+58% 1-yr rally has already priced in much of the recovery thesis"}, {"it": "Concentrazione CRE California + ~30% depositi sopra soglia $250K FDIC", "en": "CA CRE concentration + ~30% uninsured deposits above FDIC $250K threshold"} ], "risks": [ {"it": "Taglio tassi Fed 2026-27 può comprimere NIM e invertire trend", "en": "Fed rate cuts in 2026-27 could compress NIM and reverse trend"}, {"it": "Ciclo credito CRE California (office in particolare) ancora a rischio", "en": "California CRE credit cycle (office segment in particular) still at risk"}, {"it": "Scala piccola ($431M mcap) limita liquidity istituzionale", "en": "Small scale ($431M mcap) limits institutional liquidity"} ] }

Sources & Disclaimer

Sources: stockanalysis.com (price, statistics, history), Google Finance (price cross-check, financials), GlobeNewswire (Q1 2026 earnings press release Apr 20 2026), Insider Monkey (Q1 2026 earnings call transcript), Investing.com (Q1 2026 transcript), MarketBeat (analyst estimates and ratings), stocktitan.net (buyback authorization Jun 15 2026), SEC EDGAR (10-Q Q1 2026, Form 8-K). Market data — last verified close 2026-06-22: RBB ~$25.50, market cap ~$431.36M, 52W: $16.40 – $26.12, 16.94M shares outstanding. Short interest: ~1.0% (last data Mar 2026). Dividend $0.16/qtr ($0.64 annual, 2.51% yield). Next earnings: 2026-07-20. This document is for informational purposes only and does not constitute financial or investment advice.