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Deposits
6 Months Ended
Jun. 30, 2024
Deposits [Abstract]  
Deposits Deposits
The following table is a summary of deposits as of the dates shown: 
(Dollars in thousands)June 30,
2024
December 31,
2023
June 30,
2023
Balance:
Non-interest-bearing$10,031,440 $10,420,401 $10,604,915 
NOW and interest-bearing demand deposits5,053,909 5,797,649 5,814,836 
Wealth management deposits1,490,711 1,614,499 1,417,984 
Money market16,320,017 15,149,215 14,523,124 
Savings5,882,179 5,790,334 5,321,578 
Time certificates of deposit9,270,770 6,625,072 6,356,270 
Total deposits$48,049,026 $45,397,170 $44,038,707 
Mix:
Non-interest-bearing21 %23 %24 %
NOW and interest-bearing demand deposits11 13 13 
Wealth management deposits3 
Money market34 33 33 
Savings12 13 12 
Time certificates of deposit19 14 15 
Total deposits100 %100 %100 %

Wealth management deposits represent deposit balances (primarily money market accounts) at the Company’s subsidiary banks from brokerage customers of Wintrust Investments, LLC (“Wintrust Investments”), Chicago Deferred Exchange Company (“CDEC”) and trust and asset management customers of the Company.