v3.26.1
Regulatory Requirements (Tables)
 3 Months Ended
Mar. 31, 2026
Regulatory Capital Requirements Under Banking Regulations [Abstract]  
Regulatory Capital and Ratios Regulatory capital and ratios for CSC (consolidated) and CSB are as follows:
ActualMinimum to be
Well Capitalized		Minimum Capital Requirement
March 31, 2026AmountRatioAmountRatioAmount
Ratio (1)
CSC      
Common Equity Tier 1 Risk-Based Capital$35,131 26.3%N/A $6,011 4.5%
Tier 1 Risk-Based Capital41,894 31.4%N/A 8,014 6.0%
Total Risk-Based Capital41,937 31.4%N/A 10,686 8.0%
Tier 1 Leverage41,894 8.9%N/A 18,857 4.0%
Supplementary Leverage Ratio41,894 8.8%N/A14,268 3.0%
CSB  
Common Equity Tier 1 Risk-Based Capital$27,474 34.0%$5,255 6.5%$3,638 4.5%
Tier 1 Risk-Based Capital27,474 34.0%6,467 8.0%4,850 6.0%
Total Risk-Based Capital27,512 34.0%8,084 10.0%6,467 8.0%
Tier 1 Leverage27,474 10.9%12,601 5.0%10,081 4.0%
Supplementary Leverage Ratio27,474 10.8%N/A7,635 3.0%
December 31, 2025     
CSC      
Common Equity Tier 1 Risk-Based Capital$36,081 30.4%N/A $5,345 4.5%
Tier 1 Risk-Based Capital42,844 36.1%N/A 7,127 6.0%
Total Risk-Based Capital42,894 36.1%N/A 9,503 8.0%
Tier 1 Leverage42,844 9.3%N/A 18,499 4.0%
Supplementary Leverage Ratio42,844 9.2%N/A13,974 3.0%
CSB      
Common Equity Tier 1 Risk-Based Capital$28,126 35.9%$5,088 6.5%$3,523 4.5%
Tier 1 Risk-Based Capital28,126 35.9%6,262 8.0%4,697 6.0%
Total Risk-Based Capital28,163 36.0%7,828 10.0%6,262 8.0%
Tier 1 Leverage28,126 11.1%12,641 5.0%10,113 4.0%
Supplementary Leverage Ratio28,126 11.0%N/A7,649 3.0%
(1) Under risk-based capital rules, CSC and CSB are also required to maintain additional capital buffers above the regulatory minimum risk-based capital ratios. As of March 31, 2026 and December 31, 2025, CSC was subject to a stress capital buffer of 2.5% and CSB was required to maintain a capital conservation buffer of 2.5%. CSC and CSB are also required to maintain a countercyclical capital buffer above the regulatory minimum risk-based capital ratios, which was zero for both periods presented. If a buffer falls below the minimum requirement, CSC and CSB would be subject to increasingly strict limits on capital distributions and discretionary bonus payments to executive officers. At March 31, 2026 and December 31, 2025, the minimum capital ratio requirements for both CSC and CSB, inclusive of their respective buffers, were 7.0%, 8.5%, and 10.5% for Common Equity Tier 1 Risk-Based Capital, Tier 1 Risk-Based Capital, and Total Risk-Based Capital, respectively.
N/A Not applicable.
Net Capital and Net Capital Requirements
As a securities broker-dealer, CS&Co is subject to the SEC’s Uniform Net Capital Rule. Net capital and net capital requirements for CS&Co are as follows:
March 31, 2026December 31, 2025
Net capital$13,441 $13,188 
Minimum dollar requirement0.250 0.250 
2% of aggregate debit balances2,707 2,559 
Net capital in excess of required net capital10,734 10,629