Stellar Bancorp Inc Dossier - Source-backed chat

Stellar Bancorp Inc

STELNYSE

SectorFinancials

IndustryBanks - Regional

Beta (adjusted)0.81

Intrinsic Value

Insufficient data for a value estimateNot enough reliable inputs to publish a fair value for this company yet.

Market Price $39.32Price as of 30 Jun 2026

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Market Cap $2B

Enterprise Value $1.5B

Shares Outstanding 49.6M diluted

All prices and values are periodic snapshots, not live quotes. Source dates are shown for reference.

Thesis

Street consensus, scenarios, merits, risks, and invalidation triggers

AI-assisted

Thesis Summary

Stellar Bancorp (STEL) is in a consolidative phase as it approaches the finalization of its merger with Prosperity Bancshares (PB), expected to close on or about July 1, 2026. The transaction, structured as a stock-and-cash deal (0.3803 Prosperity shares and $11.36 in cash per Stellar share), values Stellar at approximately $2 billion. Because the merger has received regulatory approvals and Stellar shareholder approval (on May 27, 2026), the stock's price action is tightly bound to the merger arbitrage spread and Prosperity's stock performance. On a standalone basis, Stellar has demonstrated solid core performance with strong loan growth and robust asset quality, but its independent future is limited.

This section is the 12-month view: analyst targets and the probability-weighted scenarios built from them. The intrinsic value at the top of this page answers a different question: what the business is worth today.

Our research · scenarios, merits, risks, and invalidation triggersResearch as of 18 Sep 2026

Scenarios · 12-month scenario targetsAnchored at research date

Bear CaseDownside scenario

An unexpected, last-minute systemic banking crisis or regulatory intervention delays or disrupts the merger completion. Standalone, Stellar faces accelerated run-off of purchase accounting accretion and rising deposit costs, compressing NIM below 3.90%.

Base CaseCentral scenario

The merger with Prosperity Bancshares closes successfully on or about July 1, 2026. Stellar shareholders receive the agreed-upon consideration of 0.3803 Prosperity shares and $11.36 in cash per share. The combined entity leverages Stellar's commercial platform in Texas to drive cost synergies and EPS accretion, while Stellar's standalone operations cease.

Key Investment Merits

Highly strategic merger with Prosperity Bancshares, creating a dominant Texas-focused regional banking franchise.
Strong asset quality with historically low net charge-offs maintained at or below 0.20% since 2011.
Robust loan portfolio growth, expanding 3.94% linked-quarter (16.0% annualized) in Q1 2026.

Key Investment Risks

Merger arbitrage and transaction risk, with the stock price highly dependent on Prosperity Bancshares' equity performance.
NIM compression risks from the ongoing run-off of purchase accounting accretion.
Integration and conversion risks associated with combining systems and cultures post-merger.

Thesis Invalidation Triggers

Failure to complete the merger with Prosperity Bancshares by the third quarter of 2026.
A material adverse change in Prosperity's financial condition or stock price, severely reducing the implied transaction value.
Significant deterioration in credit quality or a spike in nonperforming assets prior to transaction close.

All scenarios are estimates and subject to change. Past performance is not indicative of future results.

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Explore this dossier

ValuationIntrinsic value, the six-method breakdown, peer medians, and your assumptions sandbox.Financial SnapshotRevenue, profitability, returns, balance sheet, dividends, and the filing-level detail.Qualitative AnalysisBusiness overview, strategic initiatives, and mergers, acquisitions & partnerships.Outlook & Key DatesForward estimates, reporting calendar, and the monitoring framework.