FirstSun (FSUN) Q1 2026 earnings review

Standalone Engine Roars, But Credit Bumps and Merger Fog Loom

FirstSun delivered an impressive standalone quarter just a day before officially closing its massive First Foundation (FFWM) merger. The core franchise fired on all cylinders: Net Interest Margin (NIM) expanded to 4.25%, and loan growth surged at a 16.2% annualized clip. However, earnings quality was dinged by a sudden spike in commercial charge-offs ($10.6M), pulling adjusted EPS down to $0.84 from $0.95 last quarter. While the standalone bank is highly profitable, the real story is forward-looking: the FFWM integration will require shedding $3.4B in assets and will dilute NIM down to the 3.80s, fundamentally changing FirstSun's financial profile.

๐Ÿ‚ Bull Case

Exceptional Core Margin Management

In a declining rate environment, FirstSun actually expanded NIM by 7 basis points to 4.25%. A deliberate shift away from expensive certificates of deposit dropped the total cost of interest-bearing deposits by 14 basis points to 2.46%.

C&I Growth Engine Humming

Total loans grew by $266.8M (16.2% annualized). This was heavily driven by the Commercial & Industrial (C&I) segment, proving the relationship-based banking model is gaining market share in their target high-growth Southwest markets.

๐Ÿป Bear Case

Credit 'Lumpiness' Strikes Again

Net charge-offs spiked to an annualized 0.63% of average loans, up from 0.30% in Q4. Management continues to cite 'specific customer relationships' rather than systemic rot, but this erratic credit behavior makes quarterly earnings unpredictable.

Merger Execution & Dilution

The First Foundation deal brings heavy baggage. Management guides for a massive balance sheet repositioning (shedding $1.3B in loans and $1.25B in securities), which will severely compress FirstSun's currently pristine profitability metrics.

โš–๏ธ Verdict: โšช

Neutral. The legacy FirstSun franchise is operating beautifully, successfully managing deposit costs and driving loan growth. However, the unexpected jump in credit costs and the colossal integration risk of the First Foundation merger make the near-term setup highly volatile.

Key Themes

DRIVER๐ŸŸข

Relentless NIM Expansion via Deposit Management

FirstSun continues to defy industry gravity. NIM expanded to 4.25% (up from 4.18% in Q4). The key driver was ruthless management of the liability side: the cost of interest-bearing deposits fell 14 bps to 2.46%. Management achieved this by intentionally letting $79.9M in expensive certificates of deposit run off, replacing them with cheaper Demand and NOW accounts (up $86.1M).

CONCERN๐Ÿ”ด

C&I Credit 'Lumpiness' Bites Bottom Line

Despite management praising a 'consistently strong' franchise, the data contradicts the pristine narrative. Net charge-offs more than doubled sequentially to $10.6M (0.63% annualized, up from 0.30%). The culprit: write-downs on two specific C&I customer relationships. While management insists this isn't systemic, this is the second time in four quarters (see Q2 25) that isolated C&I failures have blown up the charge-off ratio.

DRIVERNEW๐ŸŸข

Treasury Management & Fee Tech Ecosystem

FirstSun is proving it's not just a spread-lender. Noninterest income remains a robust 24.7% of total revenue. A key structural driver is their Treasury Management tech platform, which generates recurring, SaaS-like fees from commercial clients. Treasury management fees grew 6% annualized over Q4 to $4.6M, locking in C&I clients and providing a low-capital revenue stream.

CONCERNNEW๐Ÿ”ด๐Ÿ”ด

First Foundation Balance Sheet De-Risking

With the FFWM merger closing April 1, the standalone numbers are about to face a wrecking ball. The preliminary balance sheet repositioning plan aims to shed $3.4B in assets, including $1.2B in multifamily loans and $720M in Shared National Credits (SNCs). This massive restructuring carries profound execution risk and will intentionally shrink the near-term revenue base to right-size the combined entity's risk profile.

THEMEโšช

Macro Tailwind Reversing? The Rate Cut Paradox

The declining interest rate environment has been a net positive recently, allowing FirstSun to reprice deposits down faster than loan yields fell. However, with 65% of the loan portfolio carrying variable rates (and 40% repricing within 30 days), further aggressive Fed rate cuts will eventually squeeze loan yields (which already ticked down 1 bp to 6.36% in Q1) harder than deposits can follow.

Other KPIs

Mortgage Banking Services Income$14.3 million

Accelerating. Up 18% sequentially from $12.1M in Q4. Origination volume increased 11.4%, defying typical seasonal slowness. FirstSun capitalized on rate volatility, pushing mortgage revenue to make up over half of all noninterest income.

Wholesale Deposit Runoff-$58.6 million

Reversing. Management actively flushed out expensive, non-core brokered deposits during the quarter. This shrinks the total deposit base slightly (-1.1% annualized) but dramatically improves funding quality heading into the First Foundation integration.

Guidance

2026 Full Year NIM (Pro Forma)Mid-3.80s range

Decelerating violently from the standalone 4.25% achieved in Q1. The First Foundation portfolio carries significantly lower-yielding assets (specifically multifamily). Management expects it will take until Q4 to crawl back into the 3.90s range.

2026 Full Year Net Charge-Offs (Pro Forma)Mid-20s bps

Accelerating (improving) vs current standalone metric. While FirstSun just printed an ugly 63 bps standalone Q1 charge-off ratio, adding First Foundation's massive, heavily collateralized multifamily loan book mathematically dilutes the risk, pushing the combined ratio guidance back down to historic norms.

2026 Adjusted Efficiency Ratio (Pro Forma)Mid-to-low 60s

Stable. Management expects to offset the drag of First Foundation's lower margins with aggressive cost saves (guided to >35% of FFWM core expenses), maintaining an efficiency profile similar to FirstSun's standalone 66.08%.

Key Questions

C&I Credit Blind Spots

You've had isolated but severe C&I charge-offs in two of the last four quarters. Given your strategy to double down on C&I lending, what underwriting changes are being implemented to stop these 'lumpy' surprises?

Integration Timeline Risk

Shedding $3.4B in assets post-merger is a monumental task. What is the specific timeline to execute the loan sales, and what kind of pricing haircuts are you modeling for the multifamily and SNC run-offs?

Deposit Beta Floor

You successfully drove deposit costs down 14 bps this quarter. As the Fed reaches a terminal rate, where is the natural floor for your cost of deposits, particularly in your highly competitive Texas and California markets?