| Table V-15: Average Effective Spreads (Stock Weighted) for Market Orders | 
| in Stocks Traded on the NYSE and on Each Regional Exchange | 
| Broken Down by Order Size | 
 |  |  |  |  |  |  |  | 
 |  |  | (Cents Per Share) |  |  |  |  | 
 |  |  |  |  |  |  |  | 
 |  |  |  |  |  |  |  | 
 |  |  | All Orders |  |  |  |  | 
| Number of Trades Per Stock/Per Exchange | Number of Stocks | NYSE | BSE | CSE | CHX | PHLX | PSE | 
 |  |  |  |  |  |  |  | 
| 10 or more | 197 | 9.6 | 12.0 | 11.1 | 12.3 | 12.7 | 12.5 | 
| 30 or more | 119 | 9.5 | 11.7 | 11.1 | 12.3 | 12.6 | 12.4 | 
| 50 or more | 72 | 9.3 | 11.7 | 10.9 | 12.3 | 12.7 | 12.3 | 
 |  |  |  |  |  |  |  | 
 |  |  |  |  |  |  |  | 
 |  |  | 100 - 500 Share Orders |  |  |  |  | 
| Number of Trades Per Stock/Per Exchange | Number of Stocks | NYSE | BSE | CSE | CHX | PHLX | PSE | 
 |  |  |  |  |  |  |  | 
| 10 or more | 168 | 8.9 | 11.6 | 10.9 | 12.2 | 12.4 | 12.3 | 
| 30 or more | 93 | 9.0 | 11.6 | 10.7 | 12.3 | 12.4 | 12.2 | 
| 50 or more | 53 | 8.6 | 11.5 | 10.6 | 12.3 | 12.5 | 12.5 | 
 |  |  |  |  |  |  |  | 
 |  |  |  |  |  |  |  | 
 |  |  | 501 to 1,000 Share Orders |  |  |  |  | 
| Number of Trades Per Stock/Per Exchange | Number of Stocks | NYSE | BSE | CSE | CHX | PHLX | PSE | 
 |  |  |  |  |  |  |  | 
| 10 or more | 44 | 9.4 | 11.6 | 11.7 | 12.9 | 12.6 | 12.8 | 
| 30 or more | 10 | 9.8 | 11.6 | 11.1 | 12.6 | 11.8 | 12.4 | 
| 50 or more | 4 | 9.8 | 11.3 | 11.1 | 12.3 | 12.7 | 12.9 | 
 |  |  |  |  |  |  |  |