ARCH INSURANCE COMPANY

2009 Supplemental Data for

Property & Casualty

Aircraft

Market_Share Direct Premium Written Direct Premium Earned Direct Losses Paid Direct Losses Incurred Loss Ratio
Company Total 1.63% $456,440.00 $428,298.00 $25,437.00 $129,755.00 30.30%
Missouri Total 100.00% $28,035,877 $27,854,783 $11,851,893 $5,962,431 21.41%



ARCH INSURANCE COMPANY

2009 Supplemental Data for

Property & Casualty

Boiler & Machinery

Market_Share Direct Premium Written Direct Premium Earned Direct Losses Paid Direct Losses Incurred Loss Ratio
Company Total 0.00% $0.00 $0.00 $0.00 $-2.00 0.00%
Missouri Total 100.00% $18,653,904 $18,691,900 $49,196,986 $44,479,899 237.96%



ARCH INSURANCE COMPANY

2009 Supplemental Data for

Property & Casualty

Burglary & Theft

Market_Share Direct Premium Written Direct Premium Earned Direct Losses Paid Direct Losses Incurred Loss Ratio
Company Total 0.00% $0.00 $0.00 $0.00 $-3.00 0.00%
Missouri Total 100.00% $3,182,065 $3,204,459 $555,484 $432,096 13.48%



ARCH INSURANCE COMPANY

2009 Supplemental Data for

Property & Casualty

Commercial Auto Collision

Market_Share Direct Premium Written Direct Premium Earned Direct Losses Paid Direct Losses Incurred Loss Ratio
Company Total 0.28% $192,799.00 $219,074.00 $152,320.00 $166,275.00 75.90%
Missouri Total 100.00% $69,154,118 $71,801,637 $38,620,769 $37,867,947 52.74%



ARCH INSURANCE COMPANY

2009 Supplemental Data for

Property & Casualty

Commercial Auto Comprehensive

Market_Share Direct Premium Written Direct Premium Earned Direct Losses Paid Direct Losses Incurred Loss Ratio
Company Total 0.39% $193,284.00 $219,626.00 $152,704.00 $166,693.00 75.90%
Missouri Total 100.00% $49,460,665 $51,448,150 $27,569,025 $26,734,442 51.96%



ARCH INSURANCE COMPANY

2009 Supplemental Data for

Property & Casualty

Commercial Auto Liability Bodily Injury

Market_Share Direct Premium Written Direct Premium Earned Direct Losses Paid Direct Losses Incurred Loss Ratio
Company Total 0.44% $1,054,415.00 $1,036,569.00 $110,548.00 $598,648.00 57.75%
Missouri Total 100.00% $237,445,190 $248,038,410 $154,682,730 $137,117,232 55.28%



ARCH INSURANCE COMPANY

2009 Supplemental Data for

Property & Casualty

Commercial Auto Medical Payments

Market_Share Direct Premium Written Direct Premium Earned Direct Losses Paid Direct Losses Incurred Loss Ratio
Company Total 0.32% $26,992.00 $26,651.00 $3,274.00 $0.00 0.00%
Missouri Total 100.00% $8,332,300 $8,457,490 $4,843,583 $7,012,584 82.92%



ARCH INSURANCE COMPANY

2009 Supplemental Data for

Property & Casualty

Commercial Auto Uninsured Motorists

Market_Share Direct Premium Written Direct Premium Earned Direct Losses Paid Direct Losses Incurred Loss Ratio
Company Total 0.29% $44,849.00 $44,282.00 $0.00 $0.00 0.00%
Missouri Total 100.00% $15,315,772 $15,501,899 $7,191,076 $11,158,029 71.98%



ARCH INSURANCE COMPANY

2009 Supplemental Data for

Property & Casualty

Commercial Fire & Allied Lines

Market_Share Direct Premium Written Direct Premium Earned Direct Losses Paid Direct Losses Incurred Loss Ratio
Company Total 0.19% $216,118.00 $224,699.00 $297.00 $-57,608.00 -25.64%
Missouri Total 100.00% $112,822,740 $110,985,710 $60,198,500 $61,827,953 55.71%



ARCH INSURANCE COMPANY

2009 Supplemental Data for

Property & Casualty

Commercial Multi-Peril

Market_Share Direct Premium Written Direct Premium Earned Direct Losses Paid Direct Losses Incurred Loss Ratio
Company Total 0.10% $572,817.00 $625,111.00 $622,959.00 $603,553.00 96.55%
Missouri Total 100.00% $600,330,719 $606,012,031 $365,600,628 $347,788,065 57.39%



ARCH INSURANCE COMPANY

2009 Supplemental Data for

Property & Casualty

Direct Workers Compensation

Market_Share Direct Premium Written Direct Premium Earned Direct Losses Paid Direct Losses Incurred Loss Ratio
Company Total 0.52% $3,868,747.00 $3,804,416.00 $758,479.00 $1,431,609.00 37.63%
Missouri Total 100.00% $743,922,238 $784,442,587 $459,440,256 $412,467,149 52.58%



ARCH INSURANCE COMPANY

2009 Supplemental Data for

Property & Casualty

Earthquake

Market_Share Direct Premium Written Direct Premium Earned Direct Losses Paid Direct Losses Incurred Loss Ratio
Company Total 0.13% $118,007.00 $118,688.00 $0.00 $0.00 0.00%
Missouri Total 100.00% $88,842,606 $87,650,394 $5,546 $89,271 0.10%



ARCH INSURANCE COMPANY

2009 Supplemental Data for

Property & Casualty

Excess Workers Compensation

Market_Share Direct Premium Written Direct Premium Earned Direct Losses Paid Direct Losses Incurred Loss Ratio
Company Total 0.81% $206,181.00 $221,598.00 $0.00 $126,495.00 57.08%
Missouri Total 100.00% $25,317,096 $22,845,001 $9,935,493 $3,037,791 13.30%



ARCH INSURANCE COMPANY

2009 Supplemental Data for

Property & Casualty

Fidelity

Market_Share Direct Premium Written Direct Premium Earned Direct Losses Paid Direct Losses Incurred Loss Ratio
Company Total 0.05% $9,244.00 $7,483.00 $0.00 $2,776.00 37.10%
Missouri Total 100.00% $20,019,949 $20,542,544 $8,964,561 $6,486,803 31.58%



ARCH INSURANCE COMPANY

2009 Supplemental Data for

Accident & Health

Individual Limited Benefit

Market_Share Number of Insureds Direct Premium Written Direct Premium Earned Dividends Paid Direct Losses Paid Direct Losses Incurred Loss Ratio
Company Total 0.00% 1 $0.00 $0.00 $0.00 $0.00 $-13,107.00 0.00%
Missouri Total 100.00% 147,488 $33,850,119 $33,988,206 $7,580 $16,081,727 $15,289,477 44.98%



ARCH INSURANCE COMPANY

2009 Supplemental Data for

Property & Casualty

Inland Marine (Incl Auto Cargo)

Market_Share Direct Premium Written Direct Premium Earned Direct Losses Paid Direct Losses Incurred Loss Ratio
Company Total 0.16% $340,784.00 $346,694.00 $334,748.00 $319,399.00 92.13%
Missouri Total 100.00% $211,405,830 $223,252,884 $128,380,740 $83,255,877 37.29%



ARCH INSURANCE COMPANY

2009 Supplemental Data for

Property & Casualty

Ocean Marine

Market_Share Direct Premium Written Direct Premium Earned Direct Losses Paid Direct Losses Incurred Loss Ratio
Company Total 0.00% $0.00 $0.00 $0.00 $-3.00 0.00%
Missouri Total 100.00% $33,167,077 $33,546,033 $14,673,687 $11,468,045 34.19%



ARCH INSURANCE COMPANY

2009 Supplemental Data for

Property & Casualty

Other Liability - Bodily Injury & Property Damage

Market_Share Direct Premium Written Direct Premium Earned Direct Losses Paid Direct Losses Incurred Loss Ratio
Company Total 0.56% $3,363,492.00 $3,170,466.00 $798,251.00 $-72,034.00 -2.27%
Missouri Total 100.00% $601,938,646 $616,111,938 $304,288,865 $287,982,695 46.74%



ARCH INSURANCE COMPANY

2009 Supplemental Data for

Property & Casualty

Private Passenger Auto Liability Bodily Injury

Market_Share Direct Premium Written Direct Premium Earned Direct Losses Paid Direct Losses Incurred Loss Ratio
Company Total 0.00% $0.00 $0.00 $-3,253.00 $-3,253.00 0.00%
Missouri Total 100.00% $721,381,361 $714,805,595 $451,704,251 $466,129,688 65.21%



ARCH INSURANCE COMPANY

2009 Supplemental Data for

Property & Casualty

Products Liability

Market_Share Direct Premium Written Direct Premium Earned Direct Losses Paid Direct Losses Incurred Loss Ratio
Company Total 1.32% $356,215.00 $344,641.00 $0.00 $103,098.00 29.91%
Missouri Total 100.00% $27,083,268 $27,153,288 $16,429,441 $17,581,581 64.75%



ARCH INSURANCE COMPANY

2009 Supplemental Data for

Property & Casualty

Professional Liability (Excl Medical Malpractice)

Market_Share Direct Premium Written Direct Premium Earned Direct Losses Paid Direct Losses Incurred Loss Ratio
Company Total 3.70% $2,407,672.00 $2,269,499.00 $0.00 $0.00 0.00%
Missouri Total 100.00% $65,137,122 $68,460,440 $18,179,605 $19,915,614 29.09%



ARCH INSURANCE COMPANY

2009 Supplemental Data for

Property & Casualty

Surety

Market_Share Direct Premium Written Direct Premium Earned Direct Losses Paid Direct Losses Incurred Loss Ratio
Company Total 0.21% $162,213.00 $166,941.00 $0.00 $7,992.00 4.79%
Missouri Total 100.00% $77,751,856 $79,904,922 $6,809,571 $7,524,160 9.42%



ARCH INSURANCE COMPANY

2009 Supplemental Data for

Accident & Health

Total Accident & Health

Market_Share Number of Insureds Direct Premium Written Direct Premium Earned Dividends Paid Direct Losses Paid Direct Losses Incurred Loss Ratio
Company Total 0.00% 1 $0.00 $0.00 $0.00 $0.00 $-13,107.00 0.00%
Missouri Total 100.00% 12,713,587 $7,312,311,563 $7,274,695,579 $5,294,698 $5,673,688,510 $5,715,495,860 78.57%



ARCH INSURANCE COMPANY

2009 Supplemental Data for

Property & Casualty

Total Commercial Automobile

Market_Share Direct Premium Written Direct Premium Earned Direct Losses Paid Direct Losses Incurred Loss Ratio
Company Total 0.34% $1,512,339.00 $1,546,202.00 $418,846.00 $931,616.00 60.25%
Missouri Total 100.00% $438,717,522 $454,480,308 $266,425,043 $251,609,726 55.36%



ARCH INSURANCE COMPANY

2009 Supplemental Data for

Property & Casualty

Total Fire & Allied Lines

Market_Share Direct Premium Written Direct Premium Earned Direct Losses Paid Direct Losses Incurred Loss Ratio
Company Total 0.06% $216,118.00 $224,699.00 $297.00 $-57,608.00 -25.64%
Missouri Total 100.00% $340,216,650 $327,447,788 $214,954,602 $203,921,249 62.28%



ARCH INSURANCE COMPANY

2009 Supplemental Data for

Accident & Health

Total Individual Accident & Health

Market_Share Number of Insureds Direct Premium Written Direct Premium Earned Dividends Paid Direct Losses Paid Direct Losses Incurred Loss Ratio
Company Total 0.00% 1 $0.00 $0.00 $0.00 $0.00 $-13,107.00 0.00%
Missouri Total 100.00% 2,199,048 $2,190,971,015 $2,162,626,982 $5,085,587 $1,600,090,523 $1,627,603,255 75.26%



ARCH INSURANCE COMPANY

2009 Supplemental Data for

Property & Casualty

Total Private Passenger Automobile

Market_Share Direct Premium Written Direct Premium Earned Direct Losses Paid Direct Losses Incurred Loss Ratio
Company Total 0.00% $0.00 $0.00 $-3,253.00 $-3,253.00 0.00%
Missouri Total 100.00% $2,824,652,648 $2,807,501,540 $1,673,553,485 $1,716,047,558 61.12%



ARCH INSURANCE COMPANY

2009 Supplemental Data for

Property & Casualty

Total Property & Casualty

Market_Share Direct Premium Written Direct Premium Earned Direct Losses Paid Direct Losses Incurred Loss Ratio
Company Total 0.17% $14,356,063.00 $13,749,499.00 $3,006,414.00 $3,577,484.00 26.02%
Missouri Total 100.00% $8,304,542,734 $8,329,171,627 $4,993,465,146 $4,871,221,055 58.48%



ARCH INSURANCE COMPANY

2009 Supplemental Data for

Property & Casualty

Umbrella

Market_Share Direct Premium Written Direct Premium Earned Direct Losses Paid Direct Losses Incurred Loss Ratio
Company Total 0.61% $277,730.00 $261,793.00 $0.00 $0.00 0.00%
Missouri Total 100.00% $45,363,571 $44,947,301 $12,066,967 $123,144,324 273.97%



ARCH INSURANCE COMPANY

2009 Supplemental Data for

Property & Casualty

VSI/Collateral Protection

Market_Share Direct Premium Written Direct Premium Earned Direct Losses Paid Direct Losses Incurred Loss Ratio
Company Total 6.87% $488,064.00 $212,970.00 $50,650.00 $54,094.00 25.40%
Missouri Total 100.00% $7,105,643 $6,969,047 $4,084,649 $4,097,210 58.79%



Additional data is available for this company for the following year(s):