| August-08 | September-08 | October-08 | November-08 | December-08 | January-09 | February-09 | March-09 | April-09 | May-09 | June-09 | July-09 | August-09 | September-09 | October-09 | November-09 | December-09 | January-10 | February-10 | March-10 | April-10 | May-10 | June-10 | July-10 | ||
| Total U.S. equities dollar volume traded (in $ millions) | 332,430 | 507,521 | 614,459 | 412,161 | 392,535 | 365,348 | 370,430 | 476,242 | 488,288 | 473,251 | 494,950 | 494,789 | 508,876 | 544,950 | 609,322 | 479,501 | 470,516 | 534,473 | 504,281 | 583,863 | 616,235 | 765,163 | 602,110 | 533,776 | Total U.S. equities dollar volume traded (in $ millions) |
| August-08 | September-08 | October-08 | November-08 | December-08 | January-09 | February-09 | March-09 | April-09 | May-09 | June-09 | July-09 | August-09 | September-09 | October-09 | November-09 | December-09 | January-10 | February-10 | March-10 | April-10 | May-10 | June-10 | July-10 | ||
| Total U.S. equities trades (in thousands) | |||||||||||||||||||||||||
| Listed Trades | 28,427 | 50,151 | 74,094 | 57,735 | 51,995 | 46,808 | 52,358 | 71,528 | 66,693 | 60,982 | 59,139 | 58,143 | 59,001 | 58,105 | 61,260 | 49,553 | 46,339 | 49,711 | 49,736 | 54,135 | 55,583 | 75,017 | 61,552 | 54,302 | Listed Trades |
| Nasdaq Trades | 12,897 | 17,574 | 25,882 | 20,073 | 19,183 | 17,729 | 18,550 | 24,876 | 24,624 | 22,836 | 25,548 | 23,654 | 23,023 | 25,137 | 25,238 | 19,800 | 21,102 | 22,393 | 19,818 | 25,056 | 24,979 | 28,041 | 23,682 | 22,483 | Nasdaq Trades |
| FINRA OTC BB and Other Trades | 715 | 760 | 818 | 614 | 995 | 835 | 789 | 907 | 1,046 | 1,336 | 1,781 | 1,533 | 1,825 | 2,197 | 2,190 | 1,709 | 1,855 | 1,512 | 1,312 | 1,800 | 1,776 | 1,437 | 1,068 | 939 | FINRA OTC BB and Other Trades |
| Total Trades | 42,039 | 68,486 | 100,794 | 78,421 | 72,173 | 65,373 | 71,697 | 97,312 | 92,362 | 85,154 | 86,468 | 83,330 | 83,849 | 85,439 | 88,688 | 71,062 | 69,296 | 73,616 | 70,866 | 80,991 | 82,337 | 104,495 | 86,302 | 77,724 | Total Trades |
| August-08 | September-08 | October-08 | November-08 | December-08 | January-09 | February-09 | March-09 | April-09 | May-09 | June-09 | July-09 | August-09 | September-09 | October-09 | November-09 | December-09 | January-10 | February-10 | March-10 | April-10 | May-10 | June-10 | July-10 | ||
| Total U.S. equities shares (in millions) | |||||||||||||||||||||||||
| Listed Shares | 9,235 | 17,465 | 20,555 | 16,777 | 16,960 | 14,807 | 16,305 | 26,242 | 26,051 | 24,685 | 20,504 | 18,540 | 23,076 | 19,947 | 19,412 | 14,957 | 15,116 | 15,516 | 14,204 | 17,290 | 19,052 | 22,046 | 17,271 | 14,785 | Listed Shares |
| Nasdaq Shares | 4,094 | 5,760 | 7,956 | 6,260 | 6,599 | 6,156 | 6,720 | 9,064 | 9,222 | 9,476 | 10,088 | 8,417 | 9,263 | 10,687 | 9,180 | 7,077 | 8,090 | 8,348 | 7,169 | 9,149 | 9,021 | 8,662 | 6,938 | 6,841 | Nasdaq Shares |
| FINRA OTC BB and Other Shares | 102,368 | 65,499 | 50,452 | 46,591 | 69,711 | 75,947 | 93,146 | 90,130 | 90,327 | 134,889 | 222,572 | 196,542 | 294,347 | 264,630 | 260,783 | 232,774 | 214,567 | 173,664 | 152,050 | 227,602 | 305,330 | 210,797 | 165,956 | 133,369 | FINRAOTC BB and Other Shares |
| Total Shares | 115,697 | 88,724 | 78,963 | 69,628 | 93,270 | 96,910 | 116,171 | 125,436 | 125,600 | 169,051 | 253,164 | 223,499 | 326,686 | 295,264 | 289,376 | 254,808 | 237,772 | 197,528 | 173,423 | 254,041 | 333,403 | 241,505 | 190,165 | 154,995 | Total Shares |
| August-08 | September-08 | October-08 | November-08 | December-08 | January-09 | February-09 | March-09 | April-09 | May-09 | June-09 | July-09 | August-09 | September-09 | October-09 | November-09 | December-09 | January-10 | February-10 | March-10 | April-10 | May-10 | June-10 | July-10 | ||
| Knight Direct equity shares (in millions)* | |||||||||||||||||||||||||
| Knight Direct equity shares | 836 | 996 | 1,361 | 1,237 | 1,260 | 1,461 | 1,502 | 1,538 | 1,827 | 1,902 | 1,604 | 1,826 | 1,943 | 1,950 | 2,891 | 3,482 | 3,516 | 3,354 | 3,487 | Knight Direct equity shares | |||||
| August-08 | September-08 | October-08 | November-08 | December-08 | January-09 | February-09 | March-09 | April-09 | May-09 | June-09 | July-09 | August-09 | September-09 | October-09 | November-09 | December-09 | January-10 | February-10 | March-10 | April-10 | May-10 | June-10 | July-10 | ||
| Hotspot FX notional dollar value traded ($ in billions) | |||||||||||||||||||||||||
| Hotspot FX notional dollar value traded | 280 | 337 | 456 | 373 | 407 | 494 | 490 | 470 | 635 | 754 | 652 | 547 | 617 | 693 | 741 | 774 | 1,022 | 819 | 727 | Hotspot FX notional dollar value traded | |||||