v3.25.1
Note 5 - Derivative Instruments (Tables)
3 Months Ended
Mar. 31, 2025
Notes Tables  
Schedule of Notional Amounts of Outstanding Derivative Positions [Table Text Block]
   

Notional value

 
   

March 31, 2025

   

December 31, 2024

 

Futures and contracts for difference

  $ 832.0     $ 789.0  

Credit default swaps

    135.8       148.5  

Total return swaps

    97.2       69.7  

Foreign currency forward contracts

    316.2       328.2  
   

Notional value

 
   

March 31, 2025

   

December 31, 2024

 

Futures and contracts for difference

  $ 192.1     $ 160.5  

Credit default swaps

    3.0       4.3  

Total return swaps

    5.0       10.3  

Interest rate swaps

    14.0       13.9  

Foreign currency forward contracts

    234.4       196.6  
   

Notional value

 
   

March 31, 2025

   

December 31, 2024

 

Foreign currency forward contracts and swaps

  $ 41.8     $ 38.4  
Derivative Instruments, Gain (Loss) [Table Text Block]
   

Three months ended

 
   

March 31,

 
   

2025

   

2024

 

Futures and contracts for difference

  $ (2.3 )   $ (8.7 )

Credit default swaps

    0.6       (1.4 )

Total return swaps

    1.6       (4.6 )

Foreign currency forward contracts and swaps

    2.2       2.7  

Total gains (losses) from derivative instruments

  $ 2.1     $ (12.0 )