LaraDorBecker Securities Corporation
SEC Rule 606
LARADORBECKER SECURITIES CORP.
32 GOLDEN SCROLL CIRCLE
THE WOODLANDS, TX 77382
SEC Rule 606 Quarterly Report for the Quarter Ending March 31, 2018
Securities Listed on New York Stock Exchange
Summary Statistics:
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 Non-directed orders as percentage of total customer orders                               100.00%
 Market orders as percentage of total market orders                                             94.29%
 Limit orders as percentage of total limit orders                                                       5.71%
 Other orders as percentage of total other orders                                                    0.00%
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Venues Receiving Significant Percentage of Total Non-Directed Orders:
 |
 |
 1.   VIRTU Americas LLC |
 51.43% |
 2.   Citadel Securities LLC |
 31.43% |
 3.   Cboe EDGX U.S. Equities Exchange |
 5.71% |
 4.   G1 Execution Services, LLC |
 5.71% |
 5.   Instinet LLC |
 2.86% |
 6.   Two Sigma Securities, LLC |
 2.86% |
Information Concerning Significant Venues :
   1.   VIRTU Americas LLC
           Types of Orders Routed to Venue :
                Market orders as percentage of total market orders                             54.55%
                Limit orders as percentage of total limit orders                                       0.00%
                Other orders as percentage of total other orders                                    0.00%
   2.   Citadel Securities LLC
           Types of Orders Routed to Venue :
                Market orders as percentage of total market orders                             33.33%
                Limit orders as percentage of total limit orders                                      0.00%
                Other orders as percentage of total other orders                                    0.00%
   3.   Cboe EDGX U.S. Equities 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                                    100.00%
                Other orders as percentage of total other orders                                    0.00%
   4.   G1 Execution Services, LLC
           Types of Orders Routed to Venue :
                Market orders as percentage of total market orders                               6.06%
                 Limit orders as percentage of total limit orders                                       0.00%
                Other orders as percentage of total other orders                                    0.00%
   5.   Instinet LLC
           Types of Orders Routed to Venue :
                Market orders as percentage of total market orders                               3.03%
                Limit orders as percentage of total limit orders                                       0.00%
                Other orders as percentage of total other orders                                    0.00%
   6.   Two Sigma Securities, LLC
           Types of Orders Routed to Venue :
                Market orders as percentage of total market orders                               3.03%
                Limit orders as percentage of total limit orders                                       0.00%
                Other orders as percentage of total other orders                                    0.00%
Securities Listed on The Nasdaq Stock Market
Summary Statistics:
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 Non-directed orders as percentage of total customer orders                               100.00%
 Market orders as percentage of total market orders                                             14.29%
 Limit orders as percentage of total limit orders                                                     85.71%
 Other orders as percentage of total other orders                                                    0.00%
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Venues Receiving Significant Percentage of Total Non-Directed Orders:
 |
 |
 1.   Cboe EDGX U.S. Equities Exchange |
 57.14% |
 2.   Citadel Securities LLC |
 14.29% |
 3.   NASDAQ Execution Services, LLC |
 14.29% |
 4.   Cboe BZX U.S. Equities Exchange |
 14.29% |
Information Concerning Significant Venues :
   1.   Cboe EDGX U.S. Equities 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                                     66.67%
                Other orders as percentage of total other orders                                    0.00%
   2.   Citadel Securities LLC
           Types of Orders Routed to Venue :
                Market orders as percentage of total market orders                            100.00%
                Limit orders as percentage of total limit orders                                       0.00%
                Other orders as percentage of total other orders                                    0.00%
   3.   NASDAQ Execution Services, LLC
           Types of Orders Routed to Venue :
                Market orders as percentage of total market orders                               0.00%
                Limit orders as percentage of total limit orders                                     16.67%
                Other orders as percentage of total other orders                                    0.00%
   4.   Cboe BZX U.S. Equities 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                                     16.67%
                Other orders as percentage of total other orders                                    0.00%
Securities Listed on NYSE American or Regional Exchanges
Summary Statistics:
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 Non-directed orders as percentage of total customer orders                               100.00%
 Market orders as percentage of total market orders                                             32.12%
 Limit orders as percentage of total limit orders                                                     67.88%
 Other orders as percentage of total other orders                                                    0.00%
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Venues Receiving Significant Percentage of Total Non-Directed Orders:
 |
 |
 1.   Cboe EDGX U.S. Equities Exchange |
 30.66% |
 2.   VIRTU Americas LLC |
 20.44% |
 3.   Citadel Securities LLC |
 19.71% |
 4.   NASDAQ Execution Services, LLC |
 19.71% |
 5.   Two Sigma Securities, LLC |
 4.38% |
 6.   Cboe BZX U.S. Equities Exchange |
 2.19% |
 7.   UBS Securities, LLC |
 1.46% |
 8.   BNY Mellon Capital Markets LLC |
 0.73% |
 9.   Cboe BYX U.S. Equities Exchange |
 0.73% |
Information Concerning Significant Venues :
   1.   Cboe EDGX U.S. Equities 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                                     45.16%
                Other orders as percentage of total other orders                                    0.00%
   2.   VIRTU Americas LLC
           Types of Orders Routed to Venue :
                Market orders as percentage of total market orders                             40.91%
                Limit orders as percentage of total limit orders                                     10.75%
                Other orders as percentage of total other orders                                    0.00%
   3.   Citadel Securities LLC
           Types of Orders Routed to Venue :
                Market orders as percentage of total market orders                             50.00%
                Limit orders as percentage of total limit orders                                       5.38%
                Other orders as percentage of total other orders                                    0.00%
   4.   NASDAQ Execution Services, LLC
           Types of Orders Routed to Venue :
                Market orders as percentage of total market orders                               0.00%
                Limit orders as percentage of total limit orders                                     29.03%
                Other orders as percentage of total other orders                                    0.00%
   5.   Two Sigma Securities, LLC
           Types of Orders Routed to Venue :
                Market orders as percentage of total market orders                               4.55%
                Limit orders as percentage of total limit orders                                       4.30%
                Other orders as percentage of total other orders                                    0.00%
   6.   Cboe BZX U.S. Equities 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                                       3.23%
                Other orders as percentage of total other orders                                    0.00%
   7.   UBS Securities, LLC
           Types of Orders Routed to Venue :
                Market orders as percentage of total market orders                               0.00%
                Limit orders as percentage of total limit orders                                       2.15%
                Other orders as percentage of total other orders                                    0.00%
   8.   BNY Mellon Capital Markets LLC
           Types of Orders Routed to Venue :
                Market orders as percentage of total market orders                               2.27%
                Limit orders as percentage of total limit orders                                       0.00%
                Other orders as percentage of total other orders                                    0.00%
   9.   Cboe BYX U.S. Equities Exchange
           Types of Orders Routed to Venue :
                Market orders as percentage of total market orders                               2.27%
                Limit orders as percentage of total limit orders                                       0.00%
                Other orders as percentage of total other orders                                    0.00%
Exchange - Listed Options
Summary Statistics:
 Non-directed orders as percentage of total customer orders                                  0.00%
 Market orders as percentage of total market orders                                               0.00%
 Limit orders as percentage of total limit orders                                                       0.00%
 Other orders as percentage of total other orders                                                    0.00%
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