Illinois Banks

Return on assets for Illinois banks rose to 1.12% in Q1 2026, up 10 basis points from 1.02% in Q4 2025 and 17 basis points from 0.95% a year earlier, marking the highest ROA in the series shown. The year-over-year expansion of 17 basis points outpaced the quarter-over-quarter gain of 10 basis points, indicating the profitability improvement is accelerating, not decelerating. Net interest margin widened 11 basis points quarter-over-quarter to 3.63% and 28 basis points year-over-year from 3.35%, driving the ROA improvement alongside a 1.00-percentage-point quarterly decline in the efficiency ratio to 65.32%.

Two forces are driving the move. First, net interest margin at 3.63% reflects sustained pricing discipline: the 28-basis-point year-over-year expansion is more than double the 11-basis-point quarterly gain, so the NIM widening is decelerating but remains positive. Illinois NIM trails the national benchmark of 3.82% by 19 basis points, a gap that has persisted across the series shown. Second, the efficiency ratio fell 3.00 percentage points year-over-year to 65.32%, the sharpest decline in the series, while rising only 1.18 percentage points above the national 64.14%. The efficiency improvement occurred as asset growth decelerated (4.25% YoY, down 3.85 percentage points from the prior quarter's pace), creating a tension: costs are falling faster than revenue is slowing, a favorable dynamic but one that may not persist if growth continues to decelerate.

Specialization divergence is pronounced in the Illinois data. Credit Card specialists posted NIM of 13.80%, 9.99 percentage points above the national 3.82%, and an efficiency ratio of 54.43%, 9.71 percentage points below national, reflecting the high-margin, low-overhead economics of that business model. Mortgage specialists lagged at 76.96% efficiency, 12.81 percentage points above national, consistent with the capital-intensive, low-margin nature of mortgage banking. If NIM continues to widen at the current quarterly pace of 11 basis points, Illinois banks will close the 19-basis-point gap to the national benchmark within two quarters, though the efficiency ratio's 1.18-percentage-point gap suggests operating leverage remains a challenge.

Asset growth for Illinois banks decelerated to 4.25% YoY in Q1 2026, down 3.85 percentage points from the 4.42% pace in Q4 2025, but accelerated 31.60 percentage points from the 3.23% pace a year earlier. The year-over-year comparison shows strong acceleration; the quarter-over-quarter comparison shows deceleration, signaling that growth momentum peaked in late 2025 and is now moderating. Asset growth at 4.25% trails the national benchmark of 5.15% by 91 basis points, a gap that has widened slightly from prior quarters in the series shown.

Loan growth accelerated both quarter-over-quarter and year-over-year: 4.92% YoY in Q1 2026, up 5.90 percentage points from 4.64% in Q4 2025 and up 32.53 percentage points from 3.71% a year earlier. Deposit growth also accelerated on both timeframes: 3.98% YoY, up 2.79 percentage points quarter-over-quarter from 3.87% and up 8.63 percentage points year-over-year from 3.66%. The mechanical relationship is clear: loan growth at 4.92% exceeds deposit growth at 3.98%, yet asset growth at 4.25% sits between the two, suggesting non-loan assets (securities, cash) are contracting or growing more slowly. The loan-to-deposit ratio decreased 1.19 percentage points quarter-over-quarter to 71.94% because deposit growth outpaced loan growth on a linked-quarter absolute basis, even though the YoY growth rates favor loans.

The growth profile is decelerating from a strong 2025 baseline but remains positive across all three metrics. Illinois banks trail the national benchmarks on all three: asset growth by 91 basis points, loan growth by 1.28 percentage points, and deposit growth by 1.04 percentage points. The gaps are stable, neither widening nor narrowing materially. Agricultural specialists, representing 21.3% of Illinois banks, posted efficiency ratios 3.45 percentage points lower year-over-year, consistent with improving operating leverage as growth moderates. If asset growth continues to decelerate at the current quarterly pace of 3.85 percentage points, Illinois banks will post flat or negative growth by Q3 2026, though the year-over-year acceleration of 31.60 percentage points suggests the deceleration is a normalization from an elevated 2025 base rather than a structural downturn.

Delinquency for Illinois banks increased to 0.86% in Q1 2026, up 8 basis points from 0.79% in Q4 2025 and 13 basis points from 0.73% a year earlier, marking the highest delinquency rate in the series shown. The year-over-year increase of 13 basis points exceeds the quarter-over-quarter increase of 8 basis points, indicating the deterioration is accelerating, not stabilizing. Delinquency at 0.86% sits 17 basis points above the national benchmark of 0.70%, a gap that has widened from prior quarters. Nonperforming assets rose 9 basis points year-over-year to 0.58%, up from 0.49% in Q1 2025, and remained stable quarter-over-quarter at 5 basis points above the prior quarter's 0.53%. The NPA ratio at 0.58% exceeds the national 0.51% by 7 basis points.

The composition of the credit-quality deterioration reflects broad-based pressure rather than a single-portfolio concentration. Credit Card specialists posted delinquency of 2.57%, 1.87 percentage points above the national 0.70%, consistent with the higher loss rates inherent in unsecured consumer lending. Agricultural specialists, representing 21.3% of Illinois banks, posted delinquency of 0.63%, below the Illinois cohort average of 0.86% but rising from prior quarters. Mortgage specialists posted delinquency of 0.57%, also below the cohort average, suggesting the deterioration is concentrated in Commercial and Other specializations, which together represent 70.3% of Illinois banks. Tier 1 capital remained stable at 14.55%, unchanged quarter-over-quarter and down 25 basis points year-over-year from 14.80%, providing a 30-basis-point cushion above the national 14.26%.

The risk profile is worsening modestly but from a well-capitalized base. Delinquency at 0.86% and NPA at 0.58% are elevated relative to national benchmarks, and the year-over-year trends show acceleration rather than stabilization. Tier 1 capital at 14.55% provides a buffer, but the 25-basis-point year-over-year decline signals gradual erosion as asset growth (4.25% YoY) outpaces retained earnings. If delinquency continues to rise at the current quarterly pace of 8 basis points, Illinois banks will reach 1.00% delinquency by Q3 2026, a threshold that historically triggers increased provisioning and regulatory scrutiny. The 17-basis-point gap to the national delinquency rate is widening, suggesting Illinois-specific credit pressures rather than a national trend.

The loan-to-deposit ratio for Illinois banks decreased to 71.94% in Q1 2026, down 1.19 percentage points from 73.13% in Q4 2025 but up 69 basis points from 71.25% a year earlier. The quarter-over-quarter decline marks a shift toward greater liquidity, while the year-over-year increase reflects a gradual normalization from the deposit-flush pandemic period. The ratio sits 4.44 percentage points below the national benchmark of 76.38%, indicating Illinois banks are holding more liquidity relative to their lending posture than the broader industry.

The composition of the move is mechanical: deposit growth accelerated to 3.98% YoY from 3.66% a year earlier and from 3.87% in Q4 2025, while loan growth accelerated to 4.92% YoY from 3.71% but also accelerated quarter-over-quarter from 4.64%. Deposits grew faster than loans on a linked-quarter basis (deposit growth accelerated 2.79 percentage points QoQ versus loan growth's 5.90 percentage points), but the absolute levels diverged—deposit growth at 3.98% trails loan growth at 4.92%—creating the LDR compression. Noninterest-bearing deposit share increased 27 basis points quarter-over-quarter to 19.91%, though it remains 1.69 percentage points below the national 21.60% and down 23 basis points year-over-year, reflecting persistent migration to interest-bearing accounts.

The engagement picture is mixed: Illinois banks are accumulating deposits faster than a year ago, but the noninterest-bearing share continues its slow erosion, and the loan-to-deposit ratio's quarter-over-quarter decline suggests cautious lending posture despite accelerating loan growth. The 4.44-percentage-point gap to the national LDR is stable, neither widening nor narrowing materially from prior quarters in the series shown. If deposit growth continues to outpace loan growth at the current quarterly pace, the LDR will compress further, potentially signaling excess liquidity or subdued loan demand in the Illinois market.