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Top Nine Writers Of Financial Guaranty Insurance By Direct Premiums Written, 2023

Rank Group/company Direct premiums written (1) Market share (2)
1 Assured Guaranty Ltd. $240,027 63.3%
2 Build America Mutual Assurance Co. 60,261 15.9
3 ACP Insurance Management LLC 46,822 12.4
4 Ambac Financial Group Inc. 15,903 4.2
5 MBIA Inc. 11,428 3.0
6 Syncora Guarantee Inc. 2,425 0.6
7 Financial Guaranty Insurance Co. 1,283 0.3
8 MS&AS Insurance 442 0.1
9 Radian Group Inc. 416 0.1

(1) Before reinsurance transactions, includes state funds.
(2) Based on U.S. total, excluding territories.

Source: NAIC data, sourced from S&P Global Market Intelligence, Insurance Information Institute.

Top 10 Writers Of Financial Guaranty Insurance By Direct Premiums Written, 2020

($000)
Rank Group/company Direct premiums written (1) Market share (2)
1 Assured Guaranty Ltd. $344,497 72.3%
2 Build America Mutual Assurance Co. 61,516 12.9
3 MBIA Inc. 31,694 6.7
4 Ambac Financial Group Inc. 24,998 5.3
5 Syncora Guarantee Inc. 6,398 1.3
6 Financial Guaranty Insurance Co. 3,949 0.8
7 Transamerica Casualty Insurance Co. 3,000 0.6
8 Radian Group Inc. 436 0.1
9 HDI 5 (3)
10 W. R. Berkley Corp. -1 (4) (3)

(1) Before reinsurance transactions, includes state funds.
(2) Based on U.S. total, includes territories.
(3) Less than 0.1 percent.
(4) Represents canceled policies after W. R. Berkley Corp. assumed business from non-affiliates.

Source: NAIC data, sourced from S&P Global Market Intelligence, Insurance Information Institute.

Top 10 Writers Of Financial Guaranty Insurance By Direct Premiums Written, 2019

($000)
Rank Group/company Direct premiums written (1) Market share (2)
1 Assured Guaranty Ltd. $263,568 71.2%
2 MBIA Inc. 32,392 8.8
3 Ambac Financial Group Inc. 27,983 7.6
4 Build America Mutual Assurance Co. 27,863 7.5
5 Syncora Guarantee Inc. 10,550 2.9
6 Financial Guaranty Insurance Co. 4,419 1.2
7 Transamerica Casualty Insurance Co. 3,000 0.8
8 Radian Group Inc. 534 0.1
9 W. R. Berkley Corp. 16 (3)
10 Enstar Group Ltd. 1 (3)

(1) Before reinsurance transactions, includes state funds.
(2) Based on U.S. total, includes territories.
(3) Less than 0.1 percent.

Source: NAIC data, sourced from S&P Global Market Intelligence, Insurance Information Institute.

Top Nine Writers Of Financial Guaranty Insurance By Direct Premiums Written, 2018

($000)
Rank Group/company Direct premiums written (1) Market share (2)
1 Assured Guaranty Ltd. $250,934 60.1%
2 MBIA Inc. 68,592 16.4
3 Build America Mutual Assurance Co. 43,049 10.3
4 Ambac Financial Group Inc. 35,101 8.4
5 Syncora Guarantee Inc. 11,058 2.7
6 Financial Guaranty Insurance Co. 5,127 1.2
7 Transamerica Casualty Insurance Co. 3,000 0.7
8 Radian Group Inc. 679 0.2
9 ACA Financial Guaranty Corp. 3 (3)

(1) Before reinsurance transactions, includes state funds.
(2) Based on U.S. total, includes territories.
(3) Less than 0.1 percent.

Source: NAIC data, sourced from S&P Global Market Intelligence, Insurance Information Institute.

Top 10 Writers Of Financial Guaranty Insurance By Direct Premiums Written, 2017

($000)
Rank Group/company Direct premiums written (1) Market share (2)
1 Assured Guaranty Ltd. $262,820 58.3%
2 Build America Mutual Assurance Co. 60,328 13.4
3 MBIA Inc. 54,918 12.2
4 Ambac Financial Group Inc. 39,922 8.9
5 Syncora Guarantee Inc. 13,172 2.9
6 Berkshire Hathaway Inc. 8,748 1.9
7 Financial Guaranty Insurance Co. 7,107 1.6
8 Transamerica Casualty Insurance Co. 3,000 0.7
9 Radian Group Inc. 729 0.2
10 ACA Financial Guaranty Corp. 11 (3)

(1) Before reinsurance transactions, includes state funds.
(2) Based on U.S. total, includes territories.
(3) Less than 0.1 percent.

Source: NAIC data, sourced from S&P Global Market Intelligence, Insurance Information Institute.

Top 10 Writers Of Financial Guaranty Insurance By Direct Premiums Written, 2016

($000)
Rank Group/company Direct premiums written (1) Market share (2)
1 Assured Guaranty Ltd. $263,011 57.4%
2 MBIA Inc. 72,250 15.8
3 Ambac Financial Group Inc. 49,896 10.9
4 Build America Mutual Assurance Co. 38,376 8.4
5 Syncora Holdings Ltd. 16,343 3.6
6 Financial Guaranty Insurance Co. 9,364 2.0
7 Transamerica Casualty Insurance Co. 3,000 0.7
8 Berkshire Hathaway Inc. 2,667 0.6
9 Sigma RRG Inc. 2,419 0.5
10 Radian Group Inc. 782 0.2

(1) Before reinsurance transactions, includes state funds.
(2) Based on U.S. total, includes territories.

Source: NAIC data, sourced from S&P Global Market Intelligence, Insurance Information Institute.

Top 10 Writers Of Financial Guaranty Insurance By Direct Premiums Written, 2015

($000)
Rank Group/company Direct premiums written (1) Market share (2)
1 Assured Guaranty Ltd. $236,927 43.7%
2 MBIA Inc. 102,715 18.9
3 Syncora Holdings Ltd. 78,390 14.5
4 Ambac Financial Group Inc. 58,457 10.8
5 Build America Mutual Assurance Co. 25,306 4.7
6 Berkshire Hathaway Inc. 12,573 2.3
7 Financial Guaranty Insurance Co. 12,406 2.3
8 CIFG Assurance North America Inc. 11,789 2.2
9 Transamerica Casualty Insurance Co. 3,000 0.6
10 Radian Group Inc. 844 0.2

(1) Before reinsurance transactions, includes state funds.
(2) Based on U.S. total, includes territories.

Source: NAIC data, sourced from S&P Global Market Intelligence, Insurance Information Institute.

TOP 10 WRITERS OF FINANCIAL GUARANTY INSURANCE BY DIRECT PREMIUMS WRITTEN, 2014

($000)
Rank Group/company Direct premiums written (1) Market share (2)
1 Assured Guaranty Ltd. $269,619 50.7%
2 MBIA Inc. 116,031 21.8
3 Ambac Financial Group Inc. 69,613 13.1
4 Syncora Holdings Ltd. 27,579 5.2
5 Financial Guaranty Insurance Co. 17,330 3.3
6 Build America Mutual Assurance Co. 15,434 2.9
7 CIFG Assurance North America Inc. 10,073 1.9
8 Transamerica Casualty Insurance Co. 3,000 0.6
9 Berkshire Hathaway Inc. 2,034 0.4
10 Radian Group Inc. 915 0.2

(1) Before reinsurance transactions.
(2) Based on U.S. total, includes territories.

Source: SNL Financial LC.

TOP 10 WRITERS OF FINANCIAL GUARANTY INSURANCE BY DIRECT PREMIUMS WRITTEN, 2013

($000)
Rank Group/company Direct premiums written (1) Market share (2)
1 Assured Guaranty Ltd. $305,915 45.3%
2 MBIA Inc. 143,989 21.3
3 Ambac Financial Group Inc. 95,536 14.2
4 Financial Guaranty Insurance Co. 37,969 5.6
5 Syncora Holdings Ltd. 33,873 5.0
6 Radian Group Inc. 18,086 2.7
7 CIFG Assurance North America Inc. 15,604 2.3
8 Build America Mutual Assurance Co. 13,560 2.0
9 Berkshire Hathaway Inc. 7,033 1.0
10 Stonebridge Casualty Insurance Co. 3,000 0.4

(1) Before reinsurance transactions.
(2) Based on U.S. total, includes territories.

Source: SNL Financial LC.

Top Seven Writers Of Financial Guaranty Insurance By Direct Premiums Written, 2025

($000)
Rank Group/company Direct premiums written (1) Market share (2)
1 Assured Guaranty Ltd. $254,217 71.5%
2 Build America Mutual 71,871 20.2
3 Ambac Financial Group Inc. 15,189 4.3
4 MBIA Inc. 10,877 3.1
5 Syncora Guarantee Inc. 2,084 0.6
6 Financial Guaranty Insurance Co. 1,153 0.3
7 Radian Group Inc. 416 0.1

(1) Before reinsurance transactions, includes state funds.
(2) Based on U.S. total, excluding territories.

Source: NAIC data, sourced from S&P Global Market Intelligence, Insurance Information Institute.