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v3.23.2

Fair value measurements - Assets and Liabilities Measured at Fair Value on Recurring Basis (Details) - USD ($) $ in Thousands | Jun. 30, 2023 | Dec. 31, 2022
--- | --- | ---
ASSETS |  |
Deposits with clearing organizations | $ 27,675 | $ 24,937
Securities owned: |  |
Securities owned, at fair value | 924,183 | 498,594
Securities owned and sold, fair value | 924,189 | 498,594
Investments | 17,167 | 7,068
Derivative contracts |  |
Derivative contracts, total | 4,734 |
Total | 973,765 | 532,361
Securities sold, but not yet purchased |  |
Securities sold but not yet purchased, at fair value | 71,101 | 52,768
Derivative contracts: |  |
Derivative contracts | 7,753 | 1,805
Total | 78,854 | 54,573
Sovereign obligations |  |
Securities sold, but not yet purchased |  |
Securities sold but not yet purchased, at fair value |  | 9,048
U.S. Treasury securities |  |
Securities owned: |  |
Securities owned, at fair value | 719,574 | 362,815
Securities sold, but not yet purchased |  |
Securities sold but not yet purchased, at fair value | 41,737 | 25,006
U.S. Agency securities |  |
Securities owned: |  |
Securities owned, at fair value | 5,919 | 6,012
Securities sold, but not yet purchased |  |
Securities sold but not yet purchased, at fair value | 2 | 3
Sovereign obligations |  |
Securities owned: |  |
Securities owned, at fair value |  | 9,502
Corporate debt and other obligations |  |
Securities owned: |  |
Securities owned, at fair value | 10,544 | 9,844
Securities sold, but not yet purchased |  |
Securities sold but not yet purchased, at fair value | 2,782 | 2,905
Mortgage and other asset-backed securities |  |
Securities owned: |  |
Securities owned, at fair value | 3,867 | 1,882
Municipal obligations |  |
Securities owned: |  |
Securities owned, at fair value | 91,648 | 30,126
Convertible bonds |  |
Securities owned: |  |
Securities owned, at fair value | 28,581 | 21,800
Securities sold, but not yet purchased |  |
Securities sold but not yet purchased, at fair value | 9,857 | 4,428
Corporate equities |  |
Securities owned: |  |
Securities owned, at fair value | 31,887 | 24,837
Securities sold, but not yet purchased |  |
Securities sold but not yet purchased, at fair value | 16,723 | 11,378
Money markets |  |
Securities owned: |  |
Securities owned, at fair value | 487 | 0
Auction rate securities |  |
Securities owned: |  |
Securities owned, at fair value | 31,682 | 31,776
TBAs |  |
Derivative contracts |  |
Derivative contracts, total | 4,734 | 1,762
Derivative contracts: |  |
Derivative contracts | 4,696 | 1,761
Futures |  |
Derivative contracts: |  |
Derivative contracts | 3,057 | 44
Level 1 |  |
ASSETS |  |
Deposits with clearing organizations | 27,675 | 24,937
Securities owned: |  |
Securities owned and sold, fair value | 751,461 | 387,652
Investments | 5,454 | 0
Derivative contracts |  |
Derivative contracts, total | 0 |
Total | 784,590 | 412,589
Securities sold, but not yet purchased |  |
Securities sold but not yet purchased, at fair value | 58,460 | 36,384
Derivative contracts: |  |
Derivative contracts | 3,057 | 44
Total | 61,517 | 36,428
Level 1 | Sovereign obligations |  |
Securities sold, but not yet purchased |  |
Securities sold but not yet purchased, at fair value |  | 0
Level 1 | U.S. Treasury securities |  |
Securities owned: |  |
Securities owned, at fair value | 719,574 | 362,815
Securities sold, but not yet purchased |  |
Securities sold but not yet purchased, at fair value | 41,737 | 25,006
Level 1 | U.S. Agency securities |  |
Securities owned: |  |
Securities owned, at fair value | 0 | 0
Securities sold, but not yet purchased |  |
Securities sold but not yet purchased, at fair value | 0 | 0
Level 1 | Sovereign obligations |  |
Securities owned: |  |
Securities owned, at fair value |  | 0
Level 1 | Corporate debt and other obligations |  |
Securities owned: |  |
Securities owned, at fair value | 0 | 0
Securities sold, but not yet purchased |  |
Securities sold but not yet purchased, at fair value | 0 | 0
Level 1 | Mortgage and other asset-backed securities |  |
Securities owned: |  |
Securities owned, at fair value | 0 | 0
Level 1 | Municipal obligations |  |
Securities owned: |  |
Securities owned, at fair value | 0 | 0
Level 1 | Convertible bonds |  |
Securities owned: |  |
Securities owned, at fair value | 0 | 0
Securities sold, but not yet purchased |  |
Securities sold but not yet purchased, at fair value | 0 | 0
Level 1 | Corporate equities |  |
Securities owned: |  |
Securities owned, at fair value | 31,887 | 24,837
Securities sold, but not yet purchased |  |
Securities sold but not yet purchased, at fair value | 16,723 | 11,378
Level 1 | Money markets |  |
Securities owned: |  |
Securities owned, at fair value | 0 | 0
Level 1 | Auction rate securities |  |
Securities owned: |  |
Securities owned, at fair value | 0 | 0
Level 1 | TBAs |  |
Derivative contracts |  |
Derivative contracts, total | 0 | 0
Derivative contracts: |  |
Derivative contracts | 0 | 0
Level 1 | Futures |  |
Derivative contracts: |  |
Derivative contracts | 3,057 | 44
Level 2 |  |
ASSETS |  |
Deposits with clearing organizations | 0 | 0
Securities owned: |  |
Securities owned and sold, fair value | 141,046 | 79,166
Investments | 11,713 | 7,068
Derivative contracts |  |
Derivative contracts, total | 4,734 |
Total | 157,493 | 87,996
Securities sold, but not yet purchased |  |
Securities sold but not yet purchased, at fair value | 12,641 | 16,384
Derivative contracts: |  |
Derivative contracts | 4,696 | 1,761
Total | 17,337 | 18,145
Level 2 | Sovereign obligations |  |
Securities sold, but not yet purchased |  |
Securities sold but not yet purchased, at fair value |  | 9,048
Level 2 | U.S. Treasury securities |  |
Securities owned: |  |
Securities owned, at fair value | 0 | 0
Securities sold, but not yet purchased |  |
Securities sold but not yet purchased, at fair value | 0 | 0
Level 2 | U.S. Agency securities |  |
Securities owned: |  |
Securities owned, at fair value | 5,919 | 6,012
Securities sold, but not yet purchased |  |
Securities sold but not yet purchased, at fair value | 2 | 3
Level 2 | Sovereign obligations |  |
Securities owned: |  |
Securities owned, at fair value |  | 9,502
Level 2 | Corporate debt and other obligations |  |
Securities owned: |  |
Securities owned, at fair value | 10,544 | 9,844
Securities sold, but not yet purchased |  |
Securities sold but not yet purchased, at fair value | 2,782 | 2,905
Level 2 | Mortgage and other asset-backed securities |  |
Securities owned: |  |
Securities owned, at fair value | 3,867 | 1,882
Level 2 | Municipal obligations |  |
Securities owned: |  |
Securities owned, at fair value | 91,648 | 30,126
Level 2 | Convertible bonds |  |
Securities owned: |  |
Securities owned, at fair value | 28,581 | 21,800
Securities sold, but not yet purchased |  |
Securities sold but not yet purchased, at fair value | 9,857 | 4,428
Level 2 | Corporate equities |  |
Securities owned: |  |
Securities owned, at fair value | 0 | 0
Securities sold, but not yet purchased |  |
Securities sold but not yet purchased, at fair value | 0 | 0
Level 2 | Money markets |  |
Securities owned: |  |
Securities owned, at fair value | 487 | 0
Level 2 | Auction rate securities |  |
Securities owned: |  |
Securities owned, at fair value | 0 | 0
Level 2 | TBAs |  |
Derivative contracts |  |
Derivative contracts, total | 4,734 | 1,762
Derivative contracts: |  |
Derivative contracts | 4,696 | 1,761
Level 2 | Futures |  |
Derivative contracts: |  |
Derivative contracts | 0 | 0
Level 3 |  |
ASSETS |  |
Deposits with clearing organizations | 0 | 0
Securities owned: |  |
Securities owned and sold, fair value | 31,682 | 31,776
Investments | 0 | 0
Derivative contracts |  |
Derivative contracts, total | 0 |
Total | 31,682 | 31,776
Securities sold, but not yet purchased |  |
Securities sold but not yet purchased, at fair value | 0 | 0
Derivative contracts: |  |
Derivative contracts | 0 | 0
Total | 0 | 0
Level 3 | Sovereign obligations |  |
Securities sold, but not yet purchased |  |
Securities sold but not yet purchased, at fair value |  | 0
Level 3 | U.S. Treasury securities |  |
Securities owned: |  |
Securities owned, at fair value | 0 | 0
Securities sold, but not yet purchased |  |
Securities sold but not yet purchased, at fair value | 0 | 0
Level 3 | U.S. Agency securities |  |
Securities owned: |  |
Securities owned, at fair value | 0 | 0
Securities sold, but not yet purchased |  |
Securities sold but not yet purchased, at fair value | 0 | 0
Level 3 | Sovereign obligations |  |
Securities owned: |  |
Securities owned, at fair value |  | 0
Level 3 | Corporate debt and other obligations |  |
Securities owned: |  |
Securities owned, at fair value | 0 | 0
Securities sold, but not yet purchased |  |
Securities sold but not yet purchased, at fair value | 0 | 0
Level 3 | Mortgage and other asset-backed securities |  |
Securities owned: |  |
Securities owned, at fair value | 0 | 0
Level 3 | Municipal obligations |  |
Securities owned: |  |
Securities owned, at fair value | 0 | 0
Level 3 | Convertible bonds |  |
Securities owned: |  |
Securities owned, at fair value | 0 | 0
Securities sold, but not yet purchased |  |
Securities sold but not yet purchased, at fair value | 0 | 0
Level 3 | Corporate equities |  |
Securities owned: |  |
Securities owned, at fair value | 0 | 0
Securities sold, but not yet purchased |  |
Securities sold but not yet purchased, at fair value | 0 | 0
Level 3 | Money markets |  |
Securities owned: |  |
Securities owned, at fair value | 0 | 0
Level 3 | Auction rate securities |  |
Securities owned: |  |
Securities owned, at fair value | 31,682 | 31,776
Level 3 | TBAs |  |
Derivative contracts |  |
Derivative contracts, total | 0 | 0
Derivative contracts: |  |
Derivative contracts | 0 | 0
Level 3 | Futures |  |
Derivative contracts: |  |
Derivative contracts | $ 0 | $ 0

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