ARCH INSURANCE COMPANY

2006 Supplemental Data for

Property & Casualty

Aircraft

Market_Share Direct Premium Written Direct Premium Earned Direct Losses Paid Direct Losses Incurred Loss Ratio
Company Total 0.57% $195,546.00 $33,798.00 $0.00 $6,338.00 18.75%
Missouri Total 100.00% $34,302,205 $34,750,943 $9,954,123 $9,858,014 28.37%



ARCH INSURANCE COMPANY

2006 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 0.03% $6,453.00 $5,742.00 $0.00 $1,143.00 19.91%
Missouri Total 100.00% $20,287,178 $20,136,360 $3,041,006 $9,338,707 46.38%



ARCH INSURANCE COMPANY

2006 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% $-56.00 $16.00 $0.00 $-2.00 -12.50%
Missouri Total 100.00% $4,486,169 $4,096,450 $-508,812 $92,897 2.27%



ARCH INSURANCE COMPANY

2006 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 0.11% $102,267.00 $249,095.00 $179,509.00 $187,316.00 75.20%
Missouri Total 100.00% $92,474,523 $93,458,371 $54,124,240 $54,255,152 58.05%



ARCH INSURANCE COMPANY

2006 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 0.04% $28,844.00 $70,257.00 $50,630.00 $52,833.00 75.20%
Missouri Total 100.00% $64,583,189 $64,500,523 $61,101,767 $60,705,338 94.12%



ARCH INSURANCE COMPANY

2006 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 0.28% $728,215.00 $815,458.00 $24,261.00 $124,443.00 15.26%
Missouri Total 100.00% $257,416,800 $259,851,118 $134,421,032 $156,308,862 60.15%



ARCH INSURANCE COMPANY

2006 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 0.69% $773,412.00 $1,390,992.00 $772,367.00 $1,693,386.00 121.74%
Missouri Total 100.00% $111,471,643 $109,462,300 $59,637,104 $96,110,695 87.80%



ARCH INSURANCE COMPANY

2006 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 0.25% $1,585,398.00 $1,235,160.00 $60,601.00 $303,773.00 24.59%
Missouri Total 100.00% $631,114,959 $626,549,471 $439,987,620 $530,264,046 84.63%



ARCH INSURANCE COMPANY

2006 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 -0.06% $-604,394.00 $-482,573.00 $257,338.00 $-404,304.00 83.78%
Missouri Total 100.00% $1,002,570,001 $992,049,972 $424,018,402 $542,248,649 54.66%



ARCH INSURANCE COMPANY

2006 Supplemental Data for

Property & Casualty

Earthquake

Market_Share Direct Premium Written Direct Premium Earned Direct Losses Paid Direct Losses Incurred Loss Ratio
Company Total -0.16% $-118,157.00 $-15,164.00 $0.00 $-27,253.00 179.72%
Missouri Total 100.00% $74,987,799 $73,995,713 $157,888 $395,238 0.53%



ARCH INSURANCE COMPANY

2006 Supplemental Data for

Property & Casualty

Fidelity

Market_Share Direct Premium Written Direct Premium Earned Direct Losses Paid Direct Losses Incurred Loss Ratio
Company Total -0.01% $-2,149.00 $1,831.00 $0.00 $-175.00 -9.56%
Missouri Total 100.00% $20,361,971 $21,271,061 $10,450,633 $5,404,531 25.41%



ARCH INSURANCE COMPANY

2006 Supplemental Data for

Accident & Health

Group Stop Loss

Market_Share Number of Insureds Direct Premium Written Direct Premium Earned Dividends Paid Direct Losses Paid Direct Losses Incurred Loss Ratio
Company Total 0.01% 3 $14,043.00 $14,043.00 $0.00 $12,924.00 $10,643.00 75.79%
Missouri Total 100.00% 1,214,997 $117,584,904 $117,788,867 $0 $90,581,960 $98,006,992 83.21%



ARCH INSURANCE COMPANY

2006 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 1.34% 514 $432,140.00 $462,363.00 $0.00 $325,639.00 $234,203.00 50.65%
Missouri Total 100.00% 172,748 $32,183,626 $32,426,875 $7,650 $15,128,450 $13,588,842 41.91%



ARCH INSURANCE COMPANY

2006 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 0.21% $479,185.00 $467,887.00 $110,805.00 $153,143.00 32.73%
Missouri Total 100.00% $232,233,886 $221,364,045 $106,188,581 $132,014,826 59.64%



ARCH INSURANCE COMPANY

2006 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% $348.00 $349.00 $0.00 $43.00 12.32%
Missouri Total 100.00% $38,824,385 $38,005,163 $19,675,076 $43,782,935 115.20%



ARCH INSURANCE COMPANY

2006 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 0.64% $3,890,681.00 $3,664,283.00 $415,840.00 $1,603,106.00 43.75%
Missouri Total 100.00% $609,320,778 $606,834,036 $371,638,001 $406,762,156 67.03%



ARCH INSURANCE COMPANY

2006 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 $23,453.00 $25,550.00 0.00%
Missouri Total 100.00% $715,234,862 $712,797,698 $424,942,335 $419,579,046 58.86%



ARCH INSURANCE COMPANY

2006 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 0.19% $83,677.00 $27,846.00 $0.00 $12,109.00 43.49%
Missouri Total 100.00% $44,403,319 $42,164,248 $20,352,833 $16,253,820 38.55%



ARCH INSURANCE COMPANY

2006 Supplemental Data for

Property & Casualty

Surety

Market_Share Direct Premium Written Direct Premium Earned Direct Losses Paid Direct Losses Incurred Loss Ratio
Company Total 0.78% $597,227.00 $556,694.00 $0.00 $95,418.00 17.14%
Missouri Total 100.00% $76,489,177 $71,809,168 $3,911,842 $20,744,172 28.89%



ARCH INSURANCE COMPANY

2006 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 0.01% 517 $446,183.00 $476,406.00 $0.00 $338,563.00 $244,846.00 51.39%
Missouri Total 100.00% 25,120,145 $5,683,250,070 $5,707,913,156 $1,836,464 $4,303,077,735 $4,449,351,407 77.95%



ARCH INSURANCE COMPANY

2006 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 0.14% $859,326.00 $1,134,810.00 $254,400.00 $364,592.00 32.13%
Missouri Total 100.00% $605,153,895 $607,620,684 $315,616,485 $343,004,510 56.45%



ARCH INSURANCE COMPANY

2006 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 0.26% $773,412.00 $1,390,992.00 $772,367.00 $1,693,386.00 121.74%
Missouri Total 100.00% $295,134,822 $291,522,479 $146,503,161 $187,777,953 64.41%



ARCH INSURANCE COMPANY

2006 Supplemental Data for

Accident & Health

Total Group 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% 3 $14,043.00 $14,043.00 $0.00 $12,924.00 $10,643.00 75.79%
Missouri Total 100.00% 23,039,788 $4,163,211,436 $4,199,721,128 $127,598 $3,300,392,701 $3,367,830,249 80.19%



ARCH INSURANCE COMPANY

2006 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 0.03% 514 $432,140.00 $462,363.00 $0.00 $325,639.00 $234,203.00 50.65%
Missouri Total 100.00% 2,080,357 $1,520,038,634 $1,508,192,028 $1,708,866 $1,002,685,034 $1,081,521,158 71.71%



ARCH INSURANCE COMPANY

2006 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 $23,453.00 $25,550.00 0.00%
Missouri Total 100.00% $2,766,162,801 $2,757,999,491 $1,847,465,192 $1,843,214,920 66.83%



ARCH INSURANCE COMPANY

2006 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 0.10% $8,204,022.00 $8,411,242.00 $2,136,984.00 $4,123,226.00 49.02%
Missouri Total 100.00% $8,413,347,296 $8,321,806,293 $5,503,150,397 $6,015,338,706 72.28%



ARCH INSURANCE COMPANY

2006 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 6.89% $457,525.00 $389,571.00 $242,180.00 $296,359.00 76.07%
Missouri Total 100.00% $6,642,710 $6,582,685 $3,246,885 $4,055,138 61.60%



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