ARCH INSURANCE COMPANY

1999 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 0.29% $150,092.00 $92,057.00 $41,987.00 $49,441.00 53.71%
Missouri Total 100.00% $50,910,133 $49,128,126 $29,014,889 $31,013,616 63.13%



ARCH INSURANCE COMPANY

1999 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 0.00% $0.00 $0.00 $414,740.00 $416,285.00 0.00%
Missouri Total 100.00% $171,223,989 $173,894,056 $137,946,427 $126,443,689 72.71%



ARCH INSURANCE COMPANY

1999 Supplemental Data for

Property & Casualty

Commercial Auto Liability Property Damage

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 $-7,747.00 0.00%
Missouri Total 100.00% $55,157,776 $54,934,266 $53,082,218 $47,592,776 86.64%



ARCH INSURANCE COMPANY

1999 Supplemental Data for

Property & Casualty

Dwelling Fire & Allied Lines

Market_Share Direct Premium Written Direct Premium Earned Direct Losses Paid Direct Losses Incurred Loss Ratio
Company Total -0.01% $-6,493.00 $-5,891.00 $0.00 $0.00 0.00%
Missouri Total 100.00% $44,577,659 $45,424,025 $23,036,935 $18,742,593 41.26%



ARCH INSURANCE COMPANY

1999 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 0.00% $1,665.00 $941.00 $0.00 $-2,900.00 -308.18%
Missouri Total 100.00% $148,917,484 $132,937,634 $105,945,056 $99,785,009 75.06%



ARCH INSURANCE COMPANY

1999 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 0.00% $-4,016.00 $-3,890.00 $0.00 $-18.00 0.46%
Missouri Total 100.00% $313,534,451 $323,619,328 $184,569,615 $206,394,248 63.78%



ARCH INSURANCE COMPANY

1999 Supplemental Data for

Property & Casualty

Private Passenger Auto Collision

Market_Share Direct Premium Written Direct Premium Earned Direct Losses Paid Direct Losses Incurred Loss Ratio
Company Total 0.05% $358,901.00 $634,854.00 $495,956.00 $438,421.00 69.06%
Missouri Total 100.00% $659,157,259 $643,519,443 $409,537,080 $399,431,024 62.07%



ARCH INSURANCE COMPANY

1999 Supplemental Data for

Property & Casualty

Private Passenger Auto Comprehensive

Market_Share Direct Premium Written Direct Premium Earned Direct Losses Paid Direct Losses Incurred Loss Ratio
Company Total 0.27% $949,759.00 $1,500,948.00 $823,076.00 $659,693.00 43.95%
Missouri Total 100.00% $357,919,833 $353,138,409 $237,584,072 $239,784,932 67.90%



ARCH INSURANCE COMPANY

1999 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 0.06% $367,726.00 $770,414.00 $914,139.00 $592,375.00 76.89%
Missouri Total 100.00% $633,874,722 $628,682,407 $345,722,635 $366,746,670 58.34%



ARCH INSURANCE COMPANY

1999 Supplemental Data for

Property & Casualty

Private Passenger Auto Liability Property Damage

Market_Share Direct Premium Written Direct Premium Earned Direct Losses Paid Direct Losses Incurred Loss Ratio
Company Total 0.06% $245,768.00 $537,844.00 $588,420.00 $254,623.00 47.34%
Missouri Total 100.00% $401,764,230 $393,888,660 $331,948,988 $331,926,099 84.27%



ARCH INSURANCE COMPANY

1999 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 0.04% $150,092.00 $92,057.00 $456,727.00 $457,979.00 497.50%
Missouri Total 100.00% $366,583,070 $365,111,418 $280,905,549 $264,741,160 72.51%



ARCH INSURANCE COMPANY

1999 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 -0.01% $-6,493.00 $-5,891.00 $0.00 $0.00 0.00%
Missouri Total 100.00% $121,454,178 $120,310,513 $58,719,514 $47,234,718 39.26%



ARCH INSURANCE COMPANY

1999 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 0.09% $1,922,154.00 $3,444,060.00 $2,821,591.00 $1,945,112.00 56.48%
Missouri Total 100.00% $2,258,607,528 $2,224,662,512 $1,446,167,954 $1,461,223,478 65.68%



ARCH INSURANCE COMPANY

1999 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 0.04% $2,063,402.00 $3,527,277.00 $3,278,318.00 $2,400,173.00 68.05%
Missouri Total 100.00% $5,428,912,606 $5,347,544,773 $3,394,785,889 $3,451,256,420 64.54%



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