A.M. best's stock indexes: four weeks ended July 12, 2007 (Dec 31, 2004 = 1,000.00).

A.M. Best's Stock Indexes
Four weeks ended July 12, 2007 (Dec 31, 2004 = 1,000.00)

                                                Percent Change
                                       Index   Month/   Year to   Year/
AMB vs Dow                             close   Month       Date    Year

AMB's Insurance Composite (AMBG)    1,407.49     0.46      5.79   22.24
Dow Jones Industrial Avg (DJIA)    13,861.73     2.27     11.22   25.86

                                    Percent Change

Global and Regional       Index    Month/   Year to   Year/
Indexes (Ticker)          Close    Month      Date    Year

Insurance Composite Indexes by Region

United States (AMBUS)   1,314.36   -0.41      4.38    18.10
Europe (AMBEUR)         1,574.00    2.46      6.59    31.20
Asia/Pacific (AMBAP)    1,597.07   -1.62     14.40    18.81

Insurance Indexes by Market Type (Global)

Non-Life (AMBGNL)       1,354.17   -0.09      5.32    20.15
Life (AMBGL)            1,476.02    0.96      6.84    19.17
Multi-Line (AMBGML)     1,399.82    0.44      4.83    29.23
Reinsurance (AMBGR)     1,411.70    1.74      5.42    26.04
Brokers (AMBGB)         1,144.05   -0.36      6.11    20.18

(See www.ambest.com/stocks for live feed, methodology and further
detail identifying the companies included in each index.)

                                         Percent Change

                               Index    Month/   Year to   Year/
U.S. Indexes (Ticker)          Close    Month      Date    Year

Insurance Indexes by Market Type (U.S.)

Multi-Line (AMBUML)          1,139.74   -3.01     -1.97    17.00
Property/Casualty (AMBUPC)   1,275.12    0.31      2.48    18.72
Life & Health/HMO (AMBULH)   1,489.29    0.48      9.34    18.21
Life (AMBUL)                 1,546.15    0.30     10.32    19.44
Health/HMO (AMBUH)           1,427.26    0.69      8.27    16.83
Brokers (AMBUB)              1,121.39   -0.88      5.60    19.99

(See www.ambest.com/stocks for live feed, methodology and further
detail identifying the companies included in each index.)

                                                              % Change
                                                    Closing     Month/
Top 5 Global Performers       Ticker   Currency       Price      Month

1. China Insurance            jB0966        HKD       15.64      25.93
   International Holdings
   Co.
2. Alleghany Corp.                 Y        USD      413.19      13.51
3. LIG Insurance Co. Ltd.   jd002550        KRW   24,600.00      12.84
4. Meritz Fire & Marine     jd000060        KRW    9,980.00      10.89
   Insurance Co. Ltd.
5. National Interstate          NATL        USD       26.22       9.94
   Corp.

Bottom 5 Global Performers

1. Penn Treaty American          PTA        USD        5.40     -11.33
   Corp.
2. Nissay Dowa General        jT8759        JPY      717.00     -10.26
   Insurance Co. Ltd.
3. Selective Insurance          SIGI        USD       23.68     -10.00
   Group Inc.
4. NYMagic Inc.                  NYM        USD       40.10      -8.59
5. Meadowbrook Insurance         MIG        USD        9.60      -8.22
   Group Inc.

Second Quarter 2007 Performance
A.M. Best's Stock Indexes
Quarter Ended June 30, 2007 (Dec. 31, 2004 = 1,000.00)

                                                    Percent Change
                                     Index
AMB vs DOW                           Close     Qtr/Qtr     YTD   Yr/Yr

AMB's Insurance Composite (AMBG)    1,393.77      4.66    4.76   20.37
Dow Jones Industrial Avg (DJIA)    13,408.62      8.53    7.59   20.25

Global and Regional Indexes (Ticker)
Insurance Composite Indexes by Region

United States (AMBUS)               1,303.37      4.15    3.51   17.41
Europe (AMBEUR)                     1,554.67      5.12    5.28   27.14
Asia/Pacific (AMBAP)                1,585.94      6.43   13.61   15.29

Insurance Indexes by Market Type (Global)

Non-Life (AMBGNL)                   1,347.88      4.30    4.83   18.43
Life (AMBGL)                        1,448.64      3.96    4.86   17.12
Multi-Line (AMBGML)                 1,394.21      5.83    4.41   27.42
Reinsurance (AMBGR)                 1,403.40      4.87    4.80   24.78
Brokers (AMBGB)                     1,141.34      5.85    5.86   16.86

Insurance Indexes by Market Type (U.S.)

Multi-Line (AMBUML)                 1,147.03      3.97   -1.34   17.24
Property/Casualty (AMBUPC)          1,271.09      4.23    2.15   17.69
Life & Health/HMO (AMBULH)          1,458.95      4.00    7.11   17.50
Life (AMBUL)                        1,529.74      5.54    9.15   18.27
Health/HMO (AMBUH)                  1,382.79      2.31    4.90   16.59
Brokers (AMBUB)                     1,121.95      6.52    5.65   16.25

Source: A.M. Best, Dow Jones Indexes