Arch Specialty Ins Co
					Rating Date
				October 2025
			NAIC 
Classification
				
			Classification
Risk Adjusted 
Capital Ratio #1
				
			Capital Ratio #1
Risk Adjusted 
Capital Ratio #2
				
			Capital Ratio #2
Loss 
Ratio
					
				Ratio
Total 
Assets
				
			Assets
Capital
				
			Net 
Premiums
					
			Premiums
Net 
Income
				
			Income
										Auto Physical Damage
									
									Year
										Claims Received and Closed
										Claims Closed without Payment
										Total Claims Received and Closed
										Percentage of Claims Closed without Payment
										Percentage of Claims Closed without Payment
National Average
									National Average
										2024
									
									
										9
									
									
										19
									
									
										28
									
									
										67.86%
									
									
										23.31%
									
								
										2023
									
									
										5
									
									
										2
									
									
										7
									
									
										28.57%
									
									
										22.83%
									
								
										2022
									
									
										15
									
									
										9
									
									
										24
									
									
										37.50%
									
									
										23.10%
									
								
										2021
									
									
										4
									
									
										3
									
									
										7
									
									
										42.86%
									
									
										22.81%
									
								
										2020
									
									
										3
									
									
										3
									
									
										6
									
									
										50.00%
									
									
										21.51%
									
								
										2019
									
									
										3
									
									
										0
									
									
										3
									
									
										0.00%
									
									
										22.66%
									
								
										Commercial Auto Liability
									
									Year
										Claims Received and Closed
										Claims Closed without Payment
										Total Claims Received and Closed
										Percentage of Claims Closed without Payment
										Percentage of Claims Closed without Payment
National Average
									National Average
										2024
									
									
										0
									
									
										21
									
									
										21
									
									
										100.00%
									
									
										47.45%
									
								
										2023
									
									
										0
									
									
										20
									
									
										20
									
									
										100.00%
									
									
										47.29%
									
								
										2022
									
									
										0
									
									
										34
									
									
										34
									
									
										100.00%
									
									
										45.44%
									
								
										2021
									
									
										0
									
									
										15
									
									
										15
									
									
										100.00%
									
									
										44.40%
									
								
										2020
									
									
										0
									
									
										1
									
									
										1
									
									
										100.00%
									
									
										42.45%
									
								
										Commercial Multiple Peril
									
									Year
										Claims Received and Closed
										Claims Closed without Payment
										Total Claims Received and Closed
										Percentage of Claims Closed without Payment
										Percentage of Claims Closed without Payment
National Average
									National Average
										2024
									
									
										31
									
									
										192
									
									
										223
									
									
										86.10%
									
									
										41.74%
									
								
										2023
									
									
										49
									
									
										47
									
									
										96
									
									
										48.96%
									
									
										38.64%
									
								
										2022
									
									
										50
									
									
										53
									
									
										103
									
									
										51.46%
									
									
										39.39%
									
								
										2021
									
									
										58
									
									
										63
									
									
										121
									
									
										52.07%
									
									
										40.41%
									
								
										2020
									
									
										47
									
									
										90
									
									
										137
									
									
										65.69%
									
									
										48.09%
									
								
										2019
									
									
										22
									
									
										20
									
									
										42
									
									
										47.62%
									
									
										43.30%
									
								
										Medical Professional Liability (Claims Made)
									
									Year
										Claims Received and Closed
										Claims Closed without Payment
										Total Claims Received and Closed
										Percentage of Claims Closed without Payment
										Percentage of Claims Closed without Payment
National Average
									National Average
										2024
									
									
										6
									
									
										201
									
									
										207
									
									
										97.10%
									
									
										96.09%
									
								
										2023
									
									
										6
									
									
										161
									
									
										167
									
									
										96.41%
									
									
										95.22%
									
								
										2022
									
									
										4
									
									
										1,926
									
									
										1,930
									
									
										99.79%
									
									
										96.00%
									
								
										2021
									
									
										0
									
									
										1,179
									
									
										1,179
									
									
										100.00%
									
									
										93.58%
									
								
										2020
									
									
										1
									
									
										783
									
									
										784
									
									
										99.87%
									
									
										94.02%
									
								
										2019
									
									
										2
									
									
										1,087
									
									
										1,089
									
									
										99.82%
									
									
										94.59%
									
								
										Medical Professional Liability (Occurrence)
									
									Year
										Claims Received and Closed
										Claims Closed without Payment
										Total Claims Received and Closed
										Percentage of Claims Closed without Payment
										Percentage of Claims Closed without Payment
National Average
									National Average
										2024
									
									
										1
									
									
										8
									
									
										9
									
									
										88.89%
									
									
										92.29%
									
								
										2023
									
									
										0
									
									
										1
									
									
										1
									
									
										100.00%
									
									
										92.52%
									
								
										2022
									
									
										0
									
									
										2
									
									
										2
									
									
										100.00%
									
									
										92.14%
									
								
										2021
									
									
										0
									
									
										5
									
									
										5
									
									
										100.00%
									
									
										91.74%
									
								
										2020
									
									
										0
									
									
										5
									
									
										5
									
									
										100.00%
									
									
										93.85%
									
								
										2019
									
									
										0
									
									
										5
									
									
										5
									
									
										100.00%
									
									
										93.92%
									
								
										Other Liability: Claims Made
									
									Year
										Claims Received and Closed
										Claims Closed without Payment
										Total Claims Received and Closed
										Percentage of Claims Closed without Payment
										Percentage of Claims Closed without Payment
National Average
									National Average
										2024
									
									
										125
									
									
										1,352
									
									
										1,477
									
									
										91.54%
									
									
										81.44%
									
								
										2023
									
									
										83
									
									
										996
									
									
										1,079
									
									
										92.31%
									
									
										74.87%
									
								
										2022
									
									
										45
									
									
										479
									
									
										524
									
									
										91.41%
									
									
										72.69%
									
								
										2021
									
									
										5
									
									
										287
									
									
										292
									
									
										98.29%
									
									
										79.01%
									
								
										2020
									
									
										1
									
									
										215
									
									
										216
									
									
										99.54%
									
									
										80.13%
									
								
										2019
									
									
										7
									
									
										219
									
									
										226
									
									
										96.90%
									
									
										77.47%
									
								
										Other Liability: Occurrence
									
									Year
										Claims Received and Closed
										Claims Closed without Payment
										Total Claims Received and Closed
										Percentage of Claims Closed without Payment
										Percentage of Claims Closed without Payment
National Average
									National Average
										2024
									
									
										228
									
									
										316
									
									
										544
									
									
										58.09%
									
									
										12.32%
									
								
										2023
									
									
										312
									
									
										211
									
									
										523
									
									
										40.34%
									
									
										16.34%
									
								
										2022
									
									
										319
									
									
										166
									
									
										485
									
									
										34.23%
									
									
										11.13%
									
								
										2021
									
									
										451
									
									
										442
									
									
										893
									
									
										49.50%
									
									
										18.93%
									
								
										2020
									
									
										515
									
									
										284
									
									
										799
									
									
										35.54%
									
									
										20.93%
									
								
										2019
									
									
										668
									
									
										393
									
									
										1,061
									
									
										37.04%
									
									
										16.90%
									
								
										Product Liability: Occurrence
									
									Year
										Claims Received and Closed
										Claims Closed without Payment
										Total Claims Received and Closed
										Percentage of Claims Closed without Payment
										Percentage of Claims Closed without Payment
National Average
									National Average
										2024
									
									
										0
									
									
										30
									
									
										30
									
									
										100.00%
									
									
										63.97%
									
								
										2023
									
									
										0
									
									
										7
									
									
										7
									
									
										100.00%
									
									
										62.55%
									
								
										2022
									
									
										0
									
									
										2
									
									
										2
									
									
										100.00%
									
									
										56.52%
									
								
										2021
									
									
										0
									
									
										1
									
									
										1
									
									
										100.00%
									
									
										62.74%
									
								
										2020
									
									
										0
									
									
										2
									
									
										2
									
									
										100.00%
									
									
										61.51%
									
								
										Workers' Compensation
									
									Year
										Claims Received and Closed
										Claims Closed without Payment
										Total Claims Received and Closed
										Percentage of Claims Closed without Payment
										Percentage of Claims Closed without Payment
National Average
									National Average
										2019
									
									
										0
									
									
										1
									
									
										1
									
									
										100.00%
									
									
										34.01%