Price Exception Price Improvement vs. Trigger Price: Positive ($14.00) Price Improvement vs. NBBO Price: Positive ($14.00) Price Improvement vs. VWAP Price: None There was 1 Non-Display exception thrown for this order Complete order took longer than 30 seconds to execute - Duration Exception @ 12:47:04 Branch Seq. Num Action Qty Symbol Price TIF Time ARB 134 Buy 1000 IMOS 8.430 DAY Thu Jun 03 12:46:34 2004 Bid - Ask Agg. Volume Count Bid Tick Time Entry (SCHB) 8.420 - 8.430 (CINN) 200 x 400 1 x 2 - 12:46:34 At/Within Spread (SCHB) 8.420 - 8.450 (ARCX) 200 x 400 1 x 2 - 12:46:44 Execution of order was not obligatory. Using NBBO at execution as the trigger for analysis Execution Vs. Trigger Price Exec. Elapsed Quantity Price Imp./Share Imp. Total Leaves Time 1 +1s 300 8.430 0.00 0.00 Lvs 700 12:46:35 (SCHB) 8.420 - 8.430 (CINN) 200 x 400 1 x 2 -   8.410 - 8.450 100 x 400 1 x 2     There were 100 additional shares available at or better than the current execution price from 2 Market Makers 2 +10s 100 8.430 0.02 2.00 Lvs 600 12:46:44 (SCHB) 8.420 - 8.450 (ARCX) 200 x 400 1 x 2 - Trend Up 8.410 - 8.490 100 x 500 1 x 1     The VWAP of the 400 shares traded over this 3 trade (9 seconds) interval was: 8.4300 There were 300 additional shares available at or better than the current execution price from 2 Market Makers 3 +11s 100 8.430 0.02 2.00 Lvs 500 12:46:45 (SCHB) 8.420 - 8.450 (ARCX) 200 x 400 1 x 2 -   8.410 - 8.490 100 x 500 1 x 1     There were 300 additional shares available at or better than the current execution price from 2 Market Makers 4 +11s 200 8.430 0.02 4.00 Lvs 300 12:46:45 (SCHB) 8.420 - 8.450 (ARCX) 200 x 400 1 x 2 -   8.410 - 8.490 100 x 500 1 x 1     There were 200 additional shares available at or better than the current execution price from 2 Market Makers 5 +574s 100 8.430 0.02 2.00 Lvs 200 12:56:08 (PERT) 8.430 - 8.450 (ARCX) 200 x 500 1 x 2 +   8.420 - 8.470 200 x 200 1 x 1     The VWAP of the 100 shares traded over this 1 trade (9m 23s) interval was: 8.4300 There were 400 additional shares available at or better than the current execution price from 2 Market Makers 6 +817s 200 8.430 0.02 4.00 Fil 0 13:00:11 (SCHB) 8.420 - 8.450 (ARCX) 200 x 400 1 x 1 -   8.410 - 8.470 200 x 200 2 x 1     The VWAP of the 300 shares traded over this 2 trade (4m 3s) interval was: 8.4300 Execution was not properly displayed by PERT at 12:56:48 Total Trigger Price Improvement: 14.00 Execution Vs. NBBO Price Exec. Elapsed Quantity Price Imp./Share Imp. Total Leaves Time 1 +1s 300 8.430 0.00 0.00 Lvs 700 12:46:35 (SCHB) 8.420 - 8.430 (CINN) 200 x 400 1 x 2 -   8.410 - 8.450 100 x 400 1 x 2     There were 100 additional shares available at or better than the current execution price from 2 Market Makers 2 +10s 100 8.430 0.02 2.00 Lvs 600 12:46:44 (SCHB) 8.420 - 8.450 (ARCX) 200 x 400 1 x 2 - Trend Up 8.410 - 8.490 100 x 500 1 x 1     The VWAP of the 400 shares traded over this 3 trade interval was: 8.4300 There were 300 additional shares available at or better than the current execution price from 2 Market Makers 3 +11s 100 8.430 0.02 2.00 Lvs 500 12:46:45 (SCHB) 8.420 - 8.450 (ARCX) 200 x 400 1 x 2 -   8.410 - 8.490 100 x 500 1 x 1     There were 300 additional shares available at or better than the current execution price from 2 Market Makers 4 +11s 200 8.430 0.02 4.00 Lvs 300 12:46:45 (SCHB) 8.420 - 8.450 (ARCX) 200 x 400 1 x 2 -   8.410 - 8.490 100 x 500 1 x 1     There were 200 additional shares available at or better than the current execution price from 2 Market Makers 5 +574s 100 8.430 0.02 2.00 Lvs 200 12:56:08 (PERT) 8.430 - 8.450 (ARCX) 200 x 500 1 x 2 +   8.420 - 8.470 200 x 200 1 x 1     The VWAP of the 100 shares traded over this 1 trade interval was: 8.4300 There were 400 additional shares available at or better than the current execution price from 2 Market Makers 6 +817s 200 8.430 0.02 4.00 Fil 0 13:00:11 (SCHB) 8.420 - 8.450 (ARCX) 200 x 400 1 x 1 -   8.410 - 8.470 200 x 200 2 x 1     The VWAP of the 300 shares traded over this 2 trade interval was: 8.4300 Execution was not properly displayed by PERT at 12:56:48 Total NBBO Price Improvement: 14.00 info@qualityofexecution.com | Exception prepared by AHROM Exception Viewer b125 on Wed Jun 09 00:24:19 2004 | www.qualityofexecution.com