SEC Rule 606 Report - Mesirow B/D & I/A Services - 2nd Qtr, 2010
(Percentages of Total Non-Directed Orders Routed to Individual Route Venues)

Securities Listed on New York Stock Exchange
Route VenuesTotal (%)Market (%)Limit (%)Other (%)
Total (%)100 51 25 23
Knight Capital Markets 51.09 45.29 58.50 55.85
Auto Trading Desk Fin Svc 31.61 35.04 24.99 31.27
New York Stock Exch 17.10 19.68 15.99 12.60
99.05% of total customer orders were non-directed orders.

Securities Listed on The Nasdaq Stock Market
Route VenuesTotal (%)Market (%)Limit (%)Other (%)
Total (%)100 42 34 24
Knight Equity Markets 52.46 47.94 61.58 47.49
Auto Trading Desk Fin Svc 40.87 44.30 33.47 45.31
UBS Securities LLC 6.67 7.77 4.95 7.20
99.86% of total customer orders were non-directed orders.

Securities Listed on NYSE Amex or Regional Exchanges
Route VenuesTotal (%)Market (%)Limit (%)Other (%)
Total (%)100 55 21 25
Knight Capital Markets 53.46 55.16 57.39 46.47
Auto Trading Desk Fin Svc 45.61 44.32 41.85 51.56
99.97% of total customer orders were non-directed orders.

Exchange-Listed Options
Route VenuesTotal (%)Market (%)Limit (%)Other (%)
Total (%)100 19 63 18
Citigroup Global Markets 100.00 100.00 100.00 100.00
100.00% of total customer orders were non-directed orders.


Material Aspects of Relationship with Route Venues
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