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Regulatory Capital Requirements (Tables) | 9 Months Ended
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Sep. 30, 2025
Broker-Dealer, Net Capital Requirement, SEC Regulation [Abstract] |
Schedule Of Total Risk-Based, Tier 1 Risk-Based, And Tier 1 Leverage Ratios | The amounts and ratios for Stifel Financial Corp., Stifel Bank & Trust, and Stifel Bank as of September 30, 2025 are represented in the tables below (in thousands, except ratios).
|  | Actual |  |  | For Capital Adequacy Purposes |  |  | To Be Well Capitalized Under Prompt Corrective Action Provisions |
Stifel Financial Corp. |  | Amount |  |  | Ratio |  |  | Amount |  |  | Ratio |  |  | Amount |  |  | Ratio |
Common equity tier 1 capital |  | $ | 3,582,042 |  |  |  | 14.8 | % |  | $ | 1,090,596 |  |  |  | 4.5 | % |  | $ | 1,575,305 |  |  |  | 6.5 | %
Tier 1 capital |  |  | 4,267,042 |  |  |  | 17.6 | % |  |  | 1,454,128 |  |  |  | 6.0 | % |  |  | 1,938,837 |  |  |  | 8.0 | %
Total capital |  |  | 4,484,546 |  |  |  | 18.5 | % |  |  | 1,938,837 |  |  |  | 8.0 | % |  |  | 2,423,547 |  |  |  | 10.0 | %
Tier 1 leverage |  |  | 4,267,042 |  |  |  | 11.1 | % |  |  | 1,533,281 |  |  |  | 4.0 | % |  |  | 1,916,602 |  |  |  | 5.0 | %
|  | Actual |  |  | For Capital Adequacy Purposes |  |  | To Be Well Capitalized Under Prompt Corrective Action Provisions |
Stifel Bank & Trust |  | Amount |  |  | Ratio |  |  | Amount |  |  | Ratio |  |  | Amount |  |  | Ratio |
Common equity tier 1 capital |  | $ | 1,323,323 |  |  |  | 11.1 | % |  | $ | 537,227 |  |  |  | 4.5 | % |  | $ | 775,994 |  |  |  | 6.5 | %
Tier 1 capital |  |  | 1,323,323 |  |  |  | 11.1 | % |  |  | 716,302 |  |  |  | 6.0 | % |  |  | 955,069 |  |  |  | 8.0 | %
Total capital |  |  | 1,436,908 |  |  |  | 12.0 | % |  |  | 955,069 |  |  |  | 8.0 | % |  |  | 1,193,837 |  |  |  | 10.0 | %
Tier 1 leverage |  |  | 1,323,323 |  |  |  | 7.1 | % |  |  | 747,814 |  |  |  | 4.0 | % |  |  | 934,768 |  |  |  | 5.0 | %
|  | Actual |  |  | For Capital Adequacy Purposes |  |  | To Be Well Capitalized Under Prompt Corrective Action Provisions |
Stifel Bank |  | Amount |  |  | Ratio |  |  | Amount |  |  | Ratio |  |  | Amount |  |  | Ratio |
Common equity tier 1 capital |  | $ | 827,457 |  |  |  | 12.2 | % |  | $ | 304,259 |  |  |  | 4.5 | % |  | $ | 439,485 |  |  |  | 6.5 | %
Tier 1 capital |  |  | 827,457 |  |  |  | 12.2 | % |  |  | 405,678 |  |  |  | 6.0 | % |  |  | 540,904 |  |  |  | 8.0 | %
Total capital |  |  | 878,230 |  |  |  | 13.0 | % |  |  | 540,904 |  |  |  | 8.0 | % |  |  | 676,130 |  |  |  | 10.0 | %
Tier 1 leverage |  |  | 827,457 |  |  |  | 7.1 | % |  |  | 464,632 |  |  |  | 4.0 | % |  |  | 580,791 |  |  |  | 5.0 | %
The amounts and ratios for Stifel Financial Corp., Stifel Bank & Trust, and Stifel Bank as of December 31, 2024, are represented in the tables below (in thousands, except ratios).
|  | Actual |  |  | For Capital Adequacy Purposes |  |  | To Be Well Capitalized Under Prompt Corrective Action Provisions |
Stifel Financial Corp. |  | Amount |  |  | Ratio |  |  | Amount |  |  | Ratio |  |  | Amount |  |  | Ratio |
Common equity tier 1 capital |  | $ | 3,645,786 |  |  |  | 15.4 | % |  | $ | 1,068,371 |  |  |  | 4.5 | % |  | $ | 1,543,202 |  |  |  | 6.5 | %
Tier 1 capital |  |  | 4,330,786 |  |  |  | 18.2 | % |  |  | 1,424,494 |  |  |  | 6.0 | % |  |  | 1,899,326 |  |  |  | 8.0 | %
Total capital |  |  | 4,556,023 |  |  |  | 19.2 | % |  |  | 1,899,326 |  |  |  | 8.0 | % |  |  | 2,374,157 |  |  |  | 10.0 | %
Tier 1 leverage |  |  | 4,330,786 |  |  |  | 11.4 | % |  |  | 1,522,940 |  |  |  | 4.0 | % |  |  | 1,903,675 |  |  |  | 5.0 | %
|  | Actual |  |  | For Capital Adequacy Purposes |  |  | To Be Well Capitalized Under Prompt Corrective Action Provisions |
Stifel Bank & Trust |  | Amount |  |  | Ratio |  |  | Amount |  |  | Ratio |  |  | Amount |  |  | Ratio |
Common equity tier 1 capital |  | $ | 1,366,711 |  |  |  | 11.1 | % |  | $ | 555,063 |  |  |  | 4.5 | % |  | $ | 801,758 |  |  |  | 6.5 | %
Tier 1 capital |  |  | 1,366,711 |  |  |  | 11.1 | % |  |  | 740,084 |  |  |  | 6.0 | % |  |  | 986,778 |  |  |  | 8.0 | %
Total capital |  |  | 1,491,850 |  |  |  | 12.1 | % |  |  | 986,778 |  |  |  | 8.0 | % |  |  | 1,233,473 |  |  |  | 10.0 | %
Tier 1 leverage |  |  | 1,366,711 |  |  |  | 7.1 | % |  |  | 774,495 |  |  |  | 4.0 | % |  |  | 968,118 |  |  |  | 5.0 | %
|  | Actual |  |  | For Capital Adequacy Purposes |  |  | To Be Well Capitalized Under Prompt Corrective Action Provisions |
Stifel Bank |  | Amount |  |  | Ratio |  |  | Amount |  |  | Ratio |  |  | Amount |  |  | Ratio |
Common equity tier 1 capital |  | $ | 768,652 |  |  |  | 13.0 | % |  | $ | 266,427 |  |  |  | 4.5 | % |  | $ | 384,839 |  |  |  | 6.5 | %
Tier 1 capital |  |  | 768,652 |  |  |  | 13.0 | % |  |  | 355,236 |  |  |  | 6.0 | % |  |  | 473,648 |  |  |  | 8.0 | %
Total capital |  |  | 812,857 |  |  |  | 13.7 | % |  |  | 473,648 |  |  |  | 8.0 | % |  |  | 592,060 |  |  |  | 10.0 | %
Tier 1 leverage |  |  | 768,652 |  |  |  | 7.1 | % |  |  | 433,925 |  |  |  | 4.0 | % |  |  | 542,407 |  |  |  | 5.0 | %

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- Definition Tabular disclosure of the capital amounts and ratios as of the balance sheet date, indicating whether the entity or entities are in compliance with regulatory capital requirements, by entity. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 942 -SubTopic 505 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Subparagraph (c)(1) -Publisher FASB -URI https://asc.fasb.org/1943274/2147477270/942-505-50-1 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 942 -SubTopic 505 -Name Accounting Standards Codification -Section 50 -Paragraph 1B -Publisher FASB -URI https://asc.fasb.org/1943274/2147477270/942-505-50-1B + Details
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