v3.26.3
Segment Information
 9 Months Ended
Sep. 30, 2026
Segment Reporting [Abstract]  
Segment Information Segment Information
The Company’s operations consist of three primary segments: community banking, specialty finance and wealth management.

The three reportable segments are strategic business units that are separately managed as they offer different products and services and have different marketing strategies. In addition, each segment’s customer base has varying characteristics and each segment has a different regulatory environment. While the Company’s management monitors each of the sixteen bank subsidiaries’ operations and profitability separately, these subsidiaries have been aggregated into one reportable operating segment due to the similarities in products and services, customer base, operations, profitability measures, and economic characteristics.

For purposes of internal segment profitability, management allocates certain intersegment and parent company balances. Management allocates a portion of revenues to the specialty finance segment related to loans and leases originated by the specialty finance segment and sold or assigned to the community banking segment. Similarly, for purposes of analyzing the contribution from the wealth management segment, management allocates a portion of the net interest income earned by the community banking segment on deposit balances of customers of the wealth management segment to the wealth management segment. See Note (9) “Deposits” in Item 1 of this report for more information on these deposits. Finally, expenses incurred at the Wintrust parent company are allocated to each segment based on each segment’s risk-weighted assets.

The segment financial information provided in the following table has been derived from the internal profitability reporting system used by management to monitor and manage the financial performance of the Company. The accounting policies of the
segments are substantially similar to those described in Note (1) “Summary of Significant Accounting Policies” in the 2025 Form 10-K.

Our Chief Executive Officer is our chief operating decision maker (“CODM”). The CODM uses income before taxes to review segment performance and allocate resources for each reportable segment. Financial information regarding each significant segment expense outlined below is regularly provided (at least monthly) to the CODM. For community banking and specialty finance segments, ‘Interest expense’ is a significant segment expense. Additionally, for each of the three reportable segments, ‘Salaries’, ‘Commissions and incentive compensation’ and ‘Benefits’ are significant segment expenses.

The following is a summary of certain operating information for reportable segments:
(In thousands)
Community
Banking		Specialty
Finance		Wealth
Management		Total Operating SegmentsIntersegment EliminationsConsolidated
Three Months Ended September 30, 2026:
Interest income$851,622 $130,857 $9,488 $991,967 $10,894 $1,002,861 
Interest expense358,955 22,197 105 381,257 — 381,257 
Net interest income492,667 108,660 9,383 610,710 10,894 621,604 
Provision for credit losses23,379 2,500 — 25,879 — 25,879 
Non-interest income82,313 34,777 42,522 159,612 (23,339)136,273 
Non-interest expense:
Salaries100,205 18,564 9,504 128,273 345 128,618 
Commissions and incentive compensation35,264 11,472 15,175 61,911 — 61,911 
Benefits31,243 6,176 2,604 40,023 — 40,023 
Other segment expenses (1)
151,555 26,912 9,436 187,903 (12,790)175,113 
Total non-interest expense318,267 63,124 36,719 418,110 (12,445)405,665 
Income before taxes233,334 77,813 15,186 326,333 — 326,333 
Income tax expense64,889 18,356 4,034 87,279 — 87,279 
Net income$168,445 $59,457 $11,152 $239,054 $— $239,054 
Total assets at period end$60,142,857 $14,527,305 $1,301,458 $75,971,620 $— $75,971,620 
Three Months Ended September 30, 2025:
Interest income$838,871 $107,840 $5,697 $952,408 $11,426 $963,834 
Interest expense386,326 10,410 88 396,824 — 396,824 
Net interest income452,545 97,430 5,609 555,584 11,426 567,010 
Provision for credit losses20,059 1,709 — 21,768 — 21,768 
Non-interest income82,507 32,221 39,663 154,391 (23,564)130,827 
Non-interest expense:
Salaries97,900 16,464 9,761 124,125 498 124,623 
Commissions and incentive compensation33,175 10,445 12,624 56,244 — 56,244 
Benefits30,577 5,775 2,449 38,801 — 38,801 
Other segment expenses (1)
140,977 23,702 8,317 172,996 (12,636)160,360 
Total non-interest expense302,629 56,386 33,151 392,166 (12,138)380,028 
Income before taxes212,364 71,556 12,121 296,041 — 296,041 
Income tax expense 57,753 18,990 3,044 79,787 — 79,787 
Net income$154,611 $52,566 $9,077 $216,254 $— $216,254 
Total assets at period end$56,437,776 $12,187,079 $1,004,783 $69,629,638 $— $69,629,638 
(1)Other segment expenses include non-interest expense categories such as ‘Software & Equipment’, ‘Data processing’, ‘Advertising and Marketing’, ‘FDIC Insurance’, and ‘Occupancy’. See “Non-Interest Expense” under Management’s Discussion and Analysis of Financial Condition and Results of Operations in Item 2 of this Form 10-Q for further discussion on non-interest expense.
(In thousands)
Community
Banking		Specialty
Finance		Wealth
Management		Total Operating SegmentsIntersegment EliminationsConsolidated
Nine Months Ended September 30, 2026:
Interest income$2,449,737 $378,065 $28,844 $2,856,646 $35,187 $2,891,833 
Interest expense1,036,022 57,474 343 1,093,839 — 1,093,839 
Net interest income1,413,715 320,591 28,501 1,762,807 35,187 1,797,994 
Provision for credit losses72,029 6,578 — 78,607 — 78,607 
Non-interest income246,801 107,101 129,209 483,111 (71,427)411,684 
Non-interest expense:
Salaries302,540 54,478 29,296 386,314 1,265 387,579 
Commissions and incentive compensation105,719 32,788 43,274 181,781 — 181,781 
Benefits95,973 19,447 8,308 123,728 — 123,728 
Other segment expenses (1)
423,567 78,513 28,171 530,251 (37,505)492,746 
Total non-interest expense927,799 185,226 109,049 1,222,074 (36,240)1,185,834 
Income before taxes660,688 235,888 48,661 945,237 — 945,237 
Income tax expense180,281 52,875 11,946 245,102 — 245,102 
Net income$480,407 $183,013 $36,715 $700,135 $— $700,135 
Nine Months Ended September 30, 2025:
Interest income$2,408,155 $312,275 $16,192 $2,736,622 $35,085 $2,771,707 
Interest expense1,099,943 31,228 358 1,131,529 — 1,131,529 
Net interest income1,308,212 281,047 15,834 1,605,093 35,085 1,640,178 
Provision for credit losses62,965 5,000 — 67,965 — 67,965 
Non-interest income231,498 96,784 112,991 441,273 (69,723)371,550 
Non-interest expense:
Salaries293,388 47,864 28,968 370,220 1,494 371,714 
Commissions and incentive compensation98,637 29,462 36,552 164,651 — 164,651 
Benefits90,058 16,399 7,913 114,370 — 114,370 
Other segment expenses (1)
413,177 72,237 27,562 512,976 (36,132)476,844 
Total non-interest expense895,260 165,962 100,995 1,162,217 (34,638)1,127,579 
Income before taxes581,485 206,869 27,830 816,184 — 816,184 
Income tax expense153,471 55,214 6,679 215,364 — 215,364 
Net income$428,014 $151,655 $21,151 $600,820 $— $600,820 
(1)Other segment expenses include non-interest expense categories such as ‘Software & Equipment’, ‘Data processing’, ‘Advertising and Marketing’, ‘FDIC Insurance’, and ‘Occupancy’. See “Non-Interest Expense” under Management’s Discussion and Analysis of Financial Condition and Results of Operations in Item 2 of this Form 10-Q for further discussion on non-interest expense.