Securities Listed on The Nasdaq Stock Market Quarter Ending September 30, 2017


Summary Statistics:
  Non-directed orders as percentage of total customer orders 100%
  Market orders as percentage of total market orders 44.60%
  Limit orders as percentage of total limit orders 48.54%
  Other orders as percentage of total other orders 6.86%

Venues Receiving Significant Percentage of Total Non-Directed Orders:
  1. VIRTU Americas LLC 29.26%
  2. Citadel Securities LLC 27.01%
  3. EDGX Exchange, Inc. 13.04%
  4. BATS BZX Exchange 8.58%
  5. NASDAQ Execution Services, LLC 5.81%
  6. National Financial Services LLC 5.70%
  7. Two Sigma Securities, LLC 3.92%
  8. G1 Execution Services, LLC 2.53%
  9. UBS Securities, LLC 1.16%
  10. Other 0.69%

Information Concerning Significant Venues:
 
1. VIRTU Americas LLC

Types of Orders Routed to Venue:
  Market orders as percentage of total market orders 37.29%
  Limit orders as percentage of total limit orders 22.38%
  Other orders as percentage of total other orders 25.81%

Material Aspects of Relationship with Venue:
Siebert receives no compensation for order flow routed to VIRTU Americas LLC
 
2. Citadel Securities LLC

Types of Orders Routed to Venue:
  Market orders as percentage of total market orders 36.69%
  Limit orders as percentage of total limit orders 14.91%
  Other orders as percentage of total other orders 49.79%

Material Aspects of Relationship with Venue:
Siebert receives no compensation for order flow routed to Citadel Securities LLC
 
3. EDGX Exchange, Inc.

Types of Orders Routed to Venue:
  Market orders as percentage of total market orders 0.00%
  Limit orders as percentage of total limit orders 24.44%
  Other orders as percentage of total other orders 3.00%

Material Aspects of Relationship with Venue:
Siebert receives no compensation for order flow routed to EDGX Exchange, Inc.
 
4. BATS BZX Exchange

Types of Orders Routed to Venue:
  Market orders as percentage of total market orders 0.00%
  Limit orders as percentage of total limit orders 17.66%
  Other orders as percentage of total other orders 0.18%

Material Aspects of Relationship with Venue:
Siebert receives no compensation for order flow routed to BATS BZX Exchange
 
5. NASDAQ Execution Services, LLC

Types of Orders Routed to Venue:
  Market orders as percentage of total market orders 0.03%
  Limit orders as percentage of total limit orders 11.80%
  Other orders as percentage of total other orders 0.92%

Material Aspects of Relationship with Venue:
Siebert receives no compensation for order flow routed to NASDAQ Execution Services, LLC
 
6. National Financial Services LLC

Types of Orders Routed to Venue:
  Market orders as percentage of total market orders 9.30%
  Limit orders as percentage of total limit orders 2.47%
  Other orders as percentage of total other orders 5.15%

Material Aspects of Relationship with Venue:
Siebert receives no compensation for order flow routed to National Financial Services LLC
 
7. Two Sigma Securities, LLC

Types of Orders Routed to Venue:
  Market orders as percentage of total market orders 6.90%
  Limit orders as percentage of total limit orders 1.35%
  Other orders as percentage of total other orders 2.70%

Material Aspects of Relationship with Venue:
Siebert receives no compensation for order flow routed to Two Sigma Securities, LLC
 
8. G1 Execution Services, LLC

Types of Orders Routed to Venue:
  Market orders as percentage of total market orders 4.22%
  Limit orders as percentage of total limit orders 1.07%
  Other orders as percentage of total other orders 1.90%

Material Aspects of Relationship with Venue:
Siebert receives no compensation for order flow routed to G1 Execution Services, LLC
 
9. UBS Securities, LLC

Types of Orders Routed to Venue:
  Market orders as percentage of total market orders 0.57%
  Limit orders as percentage of total limit orders 1.24%
  Other orders as percentage of total other orders 4.48%

Material Aspects of Relationship with Venue:
Siebert receives no compensation for order flow routed to UBS Securities, LLC
 
10. Other

Types of Orders Routed to Venue:
  Market orders as percentage of total market orders 1.47%
  Limit orders as percentage of total limit orders 0.06%
  Other orders as percentage of total other orders 0.00%

Material Aspects of Relationship with Venue:
Siebert receives no compensation for order flow routed to Other