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INVESTMENTS (Tables)
9 Months Ended
Sep. 30, 2024
Investments, Debt and Equity Securities [Abstract]  
Schedule of Fair Value of Fixed Maturity Investments Trading and Equity Investments
The following table summarizes the fair value of fixed maturity investments trading:
September 30,
2024
December 31,
2023
U.S. treasuries$11,736,158 $10,060,203 
Corporate (1)
7,790,634 6,499,075 
Residential mortgage-backed1,753,318 1,420,362 
Asset-backed1,440,194 1,491,695 
Agencies615,627 489,117 
Non-U.S. government609,355 483,576 
Commercial mortgage-backed341,899 433,080 
Total fixed maturity investments trading$24,287,185 $20,877,108 
(1)Corporate fixed maturity investments include non-U.S. government-backed corporate fixed maturity investments.
The following table summarizes the fair value of equity investments:
September 30,
2024
December 31,
2023
Financials$131,775 $106,542 
Basic materials754 — 
Industrial, utilities and energy288 — 
Consumer141 212 
Communications and technology101 12 
Healthcare32 — 
Total$133,091 $106,766 
Schedule of Contractual Maturities of Fixed Maturity Investments
Contractual maturities of fixed maturity investments trading are described in the following table. Expected maturities will differ from contractual maturities because borrowers may have the right to call or prepay obligations with or without call or prepayment penalties.
September 30,
2024
December 31,
2023
Amortized 
Cost
Fair ValueAmortized CostFair Value
Due in less than one year
$1,224,238 $1,226,745 $587,720 $582,519 
Due after one through five years
12,783,659 12,971,037 11,439,510 11,468,263 
Due after five through ten years
5,993,586 6,155,650 5,182,667 5,188,716 
Due after ten years
406,699 398,342 307,392 292,473 
Mortgage-backed
2,085,663 2,095,217 1,864,520 1,853,442 
Asset-backed1,433,446 1,440,194 1,490,641 1,491,695 
Total$23,927,291 $24,287,185 $20,872,450 $20,877,108 
Schedule of Components of Net Investment Income
The components of net investment income are as follows:
Three months endedNine months ended
September 30,
2024
September 30,
2023
September 30,
2024
September 30,
2023
Fixed maturity investments trading$289,687 $188,781 $820,876 $514,020 
Short term investments46,746 66,722 141,923 149,903 
Equity investments670 510 1,819 6,675 
Other investments
Catastrophe bonds61,175 54,583 177,860 142,936 
Other20,937 20,031 59,525 65,422 
Cash and cash equivalents10,226 4,160 40,347 13,009 
 429,441 334,787 1,242,350 891,965 
Investment expenses(5,582)(5,679)(16,871)(15,817)
Net investment income$423,859 $329,108 $1,225,479 $876,148 
Schedule of Net Realized and Unrealized Gains (Losses) on Investments
Net realized and unrealized gains (losses) on investments are as follows:
Three months endedNine months ended
September 30,
2024
September 30,
2023
September 30,
2024
September 30,
2023
Net realized gains (losses) on fixed maturity investments trading$22,052 $(121,112)$(33,965)$(300,089)
Net unrealized gains (losses) on fixed maturity investments trading590,309 (158,226)353,465 14,007 
Net realized and unrealized gains (losses) on fixed maturity investments trading612,361 (279,338)319,500 (286,082)
Net realized and unrealized gains (losses) on investment-related derivatives (1)
97,534 30,594 50,102 (22,295)
Net realized gains (losses) on equity investments340 (10)355 (27,503)
Net unrealized gains (losses) on equity investments18,778 2,261 26,368 62,039 
Net realized and unrealized gains (losses) on equity investments19,118 2,251 26,723 34,536 
Net realized and unrealized gains (losses) on other investments - catastrophe bonds66,291 32,474 51,091 94,786 
Net realized and unrealized gains (losses) on other investments - other148,441 (14,068)155,091 7,638 
Net realized and unrealized gains (losses) on investments$943,745 $(228,087)$602,507 $(171,417)
(1)Net realized and unrealized gains (losses) on investment-related derivatives includes fixed maturity investments related derivatives (interest rate futures and credit default swaps), equity investments related derivatives (equity futures) and commodity investments related derivatives (commodity futures and commodity options). See “Note 13. Derivative Instruments” for additional information.