NASD,Total,100.00%,0.06%,0.00%,99.94%
NASD,LHMS,61.58%,0.00%,0.00%,61.62%
NASD,INET,8.40%,0.00%,0.00%,8.41%
NASD,BDPS,8.40%,0.00%,0.00%,8.41%
NASD,ANDZ,5.19%,0.00%,0.00%,5.19%
NASD,Archipelago Trading Services,4.14%,0.00%,0.00%,4.14%
NASD,Principal,3.71%,0.00%,0.00%,3.71%
NYSE,Total,100.00%,0.23%,0.00%,99.77%
NYSE,New York Stock Exchange,31.80%,0.00%,0.00%,31.87%
NYSE,LHMS,21.17%,0.00%,0.00%,21.22%
NYSE,Archipelago Trading Services,17.86%,0.00%,0.00%,17.90%
NYSE,ANDZ,8.01%,40.00%,0.00%,7.93%
NYSE,ASNX,6.26%,0.00%,0.00%,6.27%
NYSE,BDPS,4.00%,0.00%,0.00%,4.01%
NYSE,Principal,3.31%,60.00%,0.00%,3.18%
AMEX,Total,100.00%,0.00%,0.68%,99.32%
AMEX,Archipelago Trading Services,46.15%,0.00%,0.00%,46.47%
AMEX,LHMS,12.22%,0.00%,0.00%,12.30%
AMEX,Principal,7.92%,0.00%,33.33%,7.74%
AMEX,ANDZ,7.01%,0.00%,0.00%,7.06%
AMEX,New York Stock Exchange,5.43%,0.00%,0.00%,5.47%
AMEX,NORP,4.75%,0.00%,66.67%,4.33%
AMEX,BDPS,3.39%,0.00%,0.00%,3.42%
AMEX,_,2.49%,0.00%,0.00%,2.51%
AMEX,ANON,2.26%,0.00%,0.00%,2.28%
OPTN,Total,100.00%,0.00%,0.00%,100.00%
OPTN,AMEX,49.57%,0.00%,0.00%,49.57%
OPTN,CBOE,29.71%,0.00%,0.00%,29.71%
OPTN,PHLX,20.55%,0.00%,0.00%,20.55%
OPTN,PCOS,0.17%,0.00%,0.00%,0.17%