Price and Volume Information:
(OBDP)
> > >
spam works: evidence from stock touts and corresponding market activity
| Date | Bid | Ask | Sale | Volume |
| 2004-06-09 | 0.17 | 0.38 | 0.15 | 595000 |
| 2004-06-10 | 0.23 | 0.24 | 0.233 | 992800 |
| 2004-06-14 | 0.23 | 0.261 | 0.25 | 341700 |
| 2004-06-15 | 0.23 | 0.265 | 0.26 | 95900 |
| 2004-06-16 | 0.2 | 0.275 | 0.24 | 82300 |
| 2004-06-17 | 0.18 | 0.24 | 0.24 | 6100 |
| 2004-06-18 | 0.13 | 0.37 | 0.23 | 34200 |
| 2004-06-21 | 0.1 | 0.185 | 0.185 | 411200 |
| 2004-06-22 | 0.12 | 0.185 | 0.18 | 55700 |
| 2004-06-23 | 0.12 | 0.185 | 0.18 | 48100 |
| 2004-06-24 | 0.22 | 0.25 | 0.223 | 181300 |
| 2004-06-25 | 0.2 | 0.23 | 0.22 | 145300 |
| 2004-06-28 | 0.12 | 0.2 | 0.16 | 220700 |
| 2004-06-29 | 0.12 | 0.2 | 0.17 | 61400 |
| 2004-06-30 | 0.07 | 0.2 | 0.1 | 32700 |
| 2004-07-01 | 0.1 | 0.19 | 0.18 | 4900 |
| 2004-07-02 | 0.09 | 0.15 | 0.15 | 16400 |
| 2004-07-06 | 0.09 | 0.2 | 0.15 | 17700 |
| 2004-07-07 | 0.1 | 0.16 | 0.09 | 2200 |
| 2004-07-08 | 0.03 | 0.05 | 0.0375 | 189600 |
| 2004-07-09 | 0.03 | 0.05 | 0.045 | 15500 |
| 2004-07-12 | 0.03 | 0.08 | 0.04 | 27000 |
| 2004-07-13 | 0.02 | 0.05 | 0.04 | 124000 |
| 2004-07-14 | 0.02 | 0.05 | | |
| 2004-07-15 | 0.03 | 0.05 | 0.048 | 95100 |
| 2004-07-16 | 0.03 | 0.05 | 0.045 | 111000 |
| 2004-07-19 | 0.01 | 0.045 | 0.02 | 82900 |
| 2004-07-20 | 0.01 | 0.045 | 0.045 | 6000 |
| 2004-07-21 | 0.01 | 0.045 | 0.045 | 1000 |
| 2004-07-22 | 0.01 | 0.045 | 0.045 | 2300 |
| 2004-07-23 | 0.01 | 0.045 | | |
| 2004-07-26 | 0.01 | 0.045 | | |
| 2004-07-27 | 0.01 | 0.045 | | |
| 2004-07-28 | 0.075 | 0.13 | 0.098 | 1032700 |
| 2004-07-29 | 0.09 | 0.13 | 0.1 | 56800 |
| 2004-07-30 | 0.09 | 0.14 | 0.12 | 133400 |
| 2004-08-02 | 0.04 | 0.063 | 0.063 | 288100 |
| 2004-08-03 | 0.035 | 0.05 | 0.04 | 547200 |
| 2004-08-04 | 0.04 | 0.05 | 0.05 | 113000 |
| 2004-08-05 | 0.015 | 0.046 | 0.04 | 464900 |
| 2004-08-06 | 0.02 | 0.025 | 0.025 | 3046900 |
| 2004-08-09 | 0.025 | 0.035 | 0.037 | 3100600 |
| 2004-08-10 | 0.025 | 0.035 | 0.03 | 179500 |
| 2004-08-11 | 0.025 | 0.029 | 0.026 | 192000 |
| 2004-08-12 | 0.025 | 0.035 | 0.027 | 152500 |
| 2004-08-13 | 0.025 | 0.035 | 0.03 | 8000 |
| 2004-08-16 | 0.025 | 0.035 | | |
| 2004-08-17 | 0.02 | 0.035 | 0.03 | 77800 |
| 2004-08-18 | 0.02 | 0.035 | 0.03 | 5000 |
| 2004-08-19 | 0.02 | 0.035 | 0.03 | 23900 |
| 2004-08-20 | | 0.035 | 0.03 | 30000 |
| 2004-08-23 | | 0.045 | 0.02 | 7500 |
| 2004-08-24 | 0.01 | 0.038 | 0.03 | 69100 |
| 2004-08-25 | 0.022 | 0.035 | 0.038 | 170000 |
| 2004-08-26 | | 0.035 | | |
| 2004-08-27 | 0.018 | 0.035 | 0.035 | 172200 |
| 2004-08-30 | 0.025 | 0.035 | | |
| 2004-08-31 | 0.018 | 0.035 | 0.02 | 152700 |
| 2004-09-01 | 0.018 | 0.03 | 0.03 | 8300 |
| 2004-09-02 | | 0.03 | 0.03 | 1000 |
| 2004-09-03 | | 0.03 | | |
| 2004-09-07 | | 0.03 | 0.03 | 25000 |
| 2004-09-08 | 0.02 | 0.035 | 0.03 | 38000 |
| 2004-09-09 | 0.02 | 0.035 | | |
| 2004-09-10 | 0.02 | 0.035 | 0.02 | 7200 |
| 2004-09-13 | 0.02 | 0.035 | 0.02 | 10000 |
| 2004-09-14 | 0.022 | 0.03 | 0.025 | 116000 |
| 2004-09-15 | 0.022 | 0.03 | | |
| 2004-09-16 | 0.022 | 0.03 | 0.025 | 5400 |
| 2004-09-17 | 0.022 | 0.03 | | |
| 2004-09-20 | 0.022 | 0.03 | | |
| 2004-09-21 | 0.022 | 0.03 | 0.022 | 10000 |
| 2004-09-22 | | 0.025 | 0.015 | 145000 |
| 2004-09-23 | | 0.03 | | |
| 2004-09-24 | | 0.029 | | |
| 2004-09-27 | 0.004 | 0.029 | 0.005 | 75000 |
| 2004-09-28 | | 0.03 | | |
| 2004-09-29 | | 0.03 | | |
| 2004-09-30 | | 0.03 | | |
| 2004-10-01 | | 0.029 | | |
| 2004-10-04 | | 0.03 | | |
| 2004-10-05 | | 0.03 | | |
| 2004-10-06 | | 0.03 | | |
| 2004-10-07 | | 0.03 | | |
| 2004-10-08 | | 0.03 | 0.03 | 4500 |
| 2004-10-11 | | 0.03 | 0.01 | 33200 |
| 2004-10-12 | | 0.03 | | |
| 2004-10-13 | | 0.03 | 0.01 | 15000 |
| 2004-10-14 | | 0.03 | | |
| 2004-10-15 | | 0.03 | | |
| 2004-10-18 | | 0.03 | 0.03 | 1500 |
| 2004-10-19 | | 0.03 | 0.004 | 8000 |
| 2004-10-20 | 0.005 | 0.03 | | |
| 2004-10-21 | | 0.03 | 0.004 | 22500 |
| 2004-10-22 | | 0.03 | 0.01 | 18600 |
| 2004-10-25 | | 0.03 | | |
| 2004-10-26 | | 0.03 | 0.005 | 35000 |
| 2004-10-27 | | 0.03 | | |
| 2004-10-28 | | 0.0285 | 0.005 | 300000 |
| 2004-10-29 | | 0.0285 | 0.027 | 2000 |
| 2004-11-01 | 0.005 | 0.02 | 0.02 | 340249 |
| 2004-11-02 | 0.005 | 0.02 | 0.01 | 11600 |
| 2004-11-03 | 0.005 | 0.02 | 0.005 | 85000 |
| 2004-11-04 | 0.005 | 0.02 | 0.02 | 73999 |
| 2004-11-05 | 0.005 | 0.02 | 0.0055 | 208000 |
| 2004-11-08 | 0.005 | 0.02 | 0.019 | 5000 |
| 2004-11-09 | 0.005 | 0.02 | 0.015 | 60000 |
| 2004-11-10 | 0.005 | 0.02 | 0.02 | 4000 |
| 2004-11-11 | 0.005 | 0.02 | | |
| 2004-11-12 | 0.005 | 0.02 | 0.005 | 74000 |
| 2004-11-15 | 0.005 | 0.02 | | |
| 2004-11-16 | 0.005 | 0.02 | | |
| 2004-11-17 | 0.005 | 0.02 | | |
| 2004-11-18 | 0.005 | 0.02 | | |
| 2004-11-19 | 0.005 | 0.02 | 0.005 | 2000 |
| 2004-11-22 | 0.005 | 0.02 | 0.02 | 1000 |
| 2004-11-23 | 0.005 | 0.02 | | |
| 2004-11-24 | 0.005 | 0.02 | 0.019 | 56000 |
| 2004-11-26 | 0.005 | 0.02 | | |
| 2004-11-29 | 0.005 | 0.02 | 0.01 | 68500 |
| 2004-11-30 | 0.005 | 0.02 | | |
| 2004-12-01 | 0.005 | 0.02 | 0.02 | 67680 |
| 2004-12-02 | 0.005 | 0.015 | | |
| 2004-12-03 | 0.005 | 0.015 | | |
| 2004-12-06 | 0.005 | 0.02 | 0.005 | 100000 |
| 2004-12-07 | 0.01 | 0.02 | 0.01 | 60000 |
| 2004-12-08 | 0.01 | 0.02 | | |
| 2004-12-09 | 0.08 | 0.09 | 0.08 | 11114018 |
| 2004-12-10 | 0.145 | 0.21 | 0.21 | 6455299 |
| 2004-12-13 | 0.24 | 0.34 | 0.33 | 1929759 |
| 2004-12-14 | 0.34 | 0.4 | 0.38 | 2274195 |
| 2004-12-15 | 0.45 | 0.59 | 0.57 | 1062344 |
| 2004-12-16 | 0.45 | 0.48 | 0.47 | 629499 |
| 2004-12-17 | 0.34 | 0.38 | 0.37 | 1287994 |
| 2004-12-20 | 0.45 | 0.48 | 0.45 | 1842025 |
| 2004-12-21 | 0.6 | 0.63 | 0.6 | 1204212 |
| 2004-12-22 | 0.695 | 0.74 | 0.74 | 1080917 |
| 2004-12-23 | 0.59 | 0.7 | 0.695 | 506065 |
| 2004-12-27 | 0.58 | 0.66 | 0.6 | 137107 |
| 2004-12-28 | 0.55 | 0.61 | 0.6 | 218450 |
| 2004-12-29 | 0.61 | 0.69 | 0.68 | 251680 |
| 2004-12-30 | 0.66 | 0.71 | 0.71 | 336123 |
| 2004-12-31 | 0.84 | 0.9 | 0.855 | 249412 |
| 2005-01-03 | 0.73 | 0.81 | 0.8 | 164547 |
| 2005-01-04 | 0.73 | 0.78 | 0.78 | 283927 |
| 2005-01-05 | 0.68 | 0.77 | 0.74 | 190460 |
| 2005-01-06 | 0.78 | 0.85 | 0.76 | 300500 |
| 2005-01-07 | 0.68 | 0.735 | 0.73 | 222567 |
| 2005-01-10 | 0.68 | 0.735 | 0.72 | 248310 |
| 2005-01-11 | 0.66 | 0.68 | 0.66 | 172278 |
| 2005-01-12 | 0.65 | 0.69 | 0.67 | 179959 |
| 2005-01-13 | 0.675 | 0.685 | 0.68 | 434630 |
| 2005-01-14 | 0.68 | 0.725 | 0.71 | 357150 |
| 2005-01-18 | 0.75 | 0.81 | 0.765 | 486593 |
| 2005-01-19 | 0.75 | 0.81 | 0.78 | 354342 |
| 2005-01-20 | 0.72 | 0.76 | 0.75 | 378655 |
| 2005-01-21 | 0.99 | 1.01 | 0.97 | 1107484 |
| 2005-01-24 | 1.11 | 1.25 | 1.15 | 813672 |
| 2005-01-25 | 1.37 | 1.4 | 1.39 | 1105869 |
| 2005-01-26 | 1.3 | 1.4 | 1.3 | 695138 |
| 2005-01-27 | 1.31 | 1.33 | 1.32 | 596962 |
| 2005-01-28 | 1 | 1.11 | 1.1 | 952504 |
| 2005-01-31 | 0.85 | 0.92 | 0.85 | 1064559 |
| 2005-02-01 | 0.56 | | 0.61 | 2261997 |
| 2005-02-02 | 0.61 | 0.621 | 0.63 | 1102226 |
| 2005-02-03 | 0.61 | 0.63 | 0.62 | 1029143 |
| 2005-02-04 | 0.6 | 0.638 | 0.635 | 771875 |
| 2005-02-07 | 0.615 | | 0.645 | 704022 |
| 2005-02-08 | 0.61 | | 0.62 | 833563 |
| 2005-02-09 | 0.605 | | 0.65 | 426803 |
| 2005-02-10 | 0.605 | | 0.65 | 212427 |
| 2005-02-11 | 0.605 | | 0.64 | 196062 |
| 2005-02-14 | 0.605 | | 0.61 | 179709 |
| 2005-02-15 | | | 0.625 | 290646 |
| 2005-02-16 | | | 0.57 | 1369784 |
| 2005-02-17 | 0.5 | | 0.55 | 926173 |
| 2005-02-18 | 0.56 | 0.61 | 0.61 | 423878 |
| 2005-02-22 | 0.54 | 0.6 | 0.54 | 417749 |
| 2005-02-23 | 0.52 | 0.55 | 0.54 | 155949 |
| 2005-02-24 | 0.415 | 0.45 | 0.45 | 570177 |
| 2005-02-25 | 0.385 | 0.46 | 0.45 | 696408 |
| 2005-02-28 | 0.4 | 0.46 | 0.42 | 162530 |
| 2005-03-01 | 0.38 | 0.4 | 0.39 | 244260 |
| 2005-03-02 | | 0.31 | 0.3 | 659867 |
| 2005-03-03 | | 0.33 | 0.33 | 583664 |
| 2005-03-04 | 0.28 | 0.405 | 0.35 | 141067 |
| 2005-03-07 | 0.38 | 0.4 | 0.4 | 118624 |
| 2005-03-08 | 0.4 | | 0.41 | 214856 |
| 2005-03-09 | 0.41 | | 0.48 | 164741 |
| 2005-03-10 | 0.57 | 0.61 | 0.61 | 597159 |
| 2005-03-11 | 0.65 | 0.68 | 0.67 | 370401 |
| 2005-03-14 | 0.5 | 0.51 | 0.5 | 495562 |
| 2005-03-15 | 0.51 | 0.6 | 0.54 | 81555 |
| 2005-03-16 | 0.5 | 0.56 | 0.51 | 217280 |
| 2005-03-17 | 0.47 | 0.57 | 0.5 | 82424 |
| 2005-03-18 | 0.47 | 0.56 | 0.51 | 57346 |
| 2005-03-21 | 0.45 | 0.5 | 0.49 | 90839 |
| 2005-03-22 | 0.4 | 0.43 | 0.4 | 256817 |
| 2005-03-23 | 0.38 | 0.5 | 0.48 | 338554 |
| 2005-03-24 | 0.4 | | 0.43 | 100058 |
| 2005-03-28 | 0.345 | | 0.38 | 650753 |
| 2005-03-29 | 0.35 | | 0.37 | 325742 |
| 2005-03-30 | 0.4 | | 0.44 | 191000 |
| 2005-03-31 | 0.38 | | 0.4 | 45575 |
| 2005-04-01 | 0.38 | | 0.4 | 162274 |
| 2005-04-04 | 0.38 | | 0.4 | 58470 |
| 2005-04-05 | 0.38 | 0.41 | 0.4 | 98067 |
| 2005-04-06 | 0.38 | 0.4 | 0.38 | 131726 |
| 2005-04-07 | 0.37 | 0.4 | 0.385 | 231985 |
| 2005-04-08 | 0.375 | | 0.38 | 251305 |
| 2005-04-11 | 0.345 | 0.38 | 0.37 | 169104 |
| 2005-04-12 | 0.33 | | 0.35 | 248201 |
| 2005-04-13 | 0.345 | 0.38 | 0.36 | 60642 |
| 2005-04-14 | 0.345 | | 0.35 | 102652 |
| 2005-04-15 | 0.345 | | 0.37 | 63300 |
| 2005-04-18 | 0.37 | | 0.38 | 64150 |
| 2005-04-19 | 0.35 | 0.43 | 0.4 | 104320 |
| 2005-04-20 | 0.38 | | 0.4 | 33760 |
| 2005-04-21 | 0.38 | | 0.41 | 88230 |
| 2005-04-22 | 0.38 | | 0.4 | 54380 |
| 2005-04-25 | 0.38 | | 0.41 | 41690 |
| 2005-04-26 | 0.4 | 0.41 | 0.41 | 21305 |
| 2005-04-27 | 0.4 | 0.43 | 0.41 | 80975 |
| 2005-04-28 | 0.38 | 0.455 | 0.41 | 69210 |
| 2005-04-29 | 0.38 | 0.45 | 0.45 | 130128 |
| 2005-05-02 | 0.38 | 0.45 | 0.44 | 54965 |
| 2005-05-03 | 0.4 | 0.455 | 0.45 | 126353 |
| 2005-05-04 | 0.4 | 0.455 | 0.41 | 64140 |
| 2005-05-05 | 0.42 | 0.455 | 0.46 | 88250 |
| 2005-05-06 | 0.41 | 0.45 | 0.44 | 60261 |
| 2005-05-09 | 0.46 | 0.49 | 0.49 | 136820 |
| 2005-05-10 | 0.45 | 0.5 | 0.5 | 89860 |
| 2005-05-11 | 0.59 | | 0.65 | 630255 |
| 2005-05-12 | 0.59 | 0.66 | 0.64 | 364206 |
| 2005-05-13 | 0.57 | 0.64 | 0.61 | 234884 |
| 2005-05-16 | 0.62 | 0.64 | 0.64 | 238459 |
| 2005-05-17 | 0.52 | 0.59 | 0.57 | 363075 |
| 2005-05-18 | 0.45 | 0.63 | 0.6 | 52391 |
| 2005-05-19 | 0.54 | 0.63 | 0.6 | 122176 |
| 2005-05-20 | 0.655 | | 0.66 | 473864 |
| 2005-05-23 | 0.71 | | 0.8 | 1226657 |
| 2005-05-24 | 0.93 | 0.985 | 0.985 | 2516349 |
| 2005-05-25 | 1.245 | 1.265 | 1.255 | 4780628 |
| 2005-05-26 | 1.07 | 1.11 | 1.1 | 5364154 |
| 2005-05-27 | 1.2 | 1.21 | 1.21 | 1813190 |
| 2005-05-31 | 1.11 | 1.13 | 1.13 | 698355 |
| 2005-06-01 | 1.11 | 1.16 | 1.14 | 834450 |
| 2005-06-02 | 1.06 | 1.1 | 1.1 | 350220 |
| 2005-06-03 | 1.09 | 1.15 | 1.09 | 358726 |
| 2005-06-06 | 1.09 | 1.13 | 1.12 | 148877 |
| 2005-06-07 | 1.01 | 1.09 | 1.07 | 666207 |
| 2005-06-08 | 1.06 | 1.08 | 1.07 | 585789 |
| 2005-06-09 | 1.12 | 1.14 | 1.12 | 444452 |
| 2005-06-10 | 1.005 | 1.06 | 1.03 | 832692 |
| 2005-06-13 | 0.9 | 0.97 | 0.95 | 850319 |
| 2005-06-14 | 0.8 | 0.83 | 0.8 | 780650 |
| 2005-06-15 | 0.68 | 0.76 | 0.74 | 605679 |
| 2005-06-16 | 0.73 | 0.82 | 0.8 | 282636 |
| 2005-06-17 | 0.85 | 0.97 | 0.93 | 314863 |
| 2005-06-20 | 0.85 | 0.91 | 0.9 | 136613 |
| 2005-06-21 | 0.825 | 0.86 | 0.825 | 501865 |
| 2005-06-22 | 0.8 | 0.86 | 0.86 | 222231 |
| 2005-06-23 | 0.79 | 0.88 | 0.81 | 126919 |
| 2005-06-24 | 0.7 | 0.74 | 0.74 | 357383 |
| 2005-06-27 | 0.59 | 0.63 | 0.6 | 987193 |
| 2005-06-28 | 0.53 | 0.59 | 0.59 | 1208844 |
| 2005-06-29 | 0.52 | 0.59 | 0.55 | 700584 |
| 2005-06-30 | 0.525 | 0.55 | 0.55 | 316452 |
| 2005-07-01 | 0.5 | 0.55 | 0.55 | 543930 |
| 2005-07-05 | 0.5 | 0.56 | 0.51 | 273357 |
| 2005-07-06 | 0.47 | 0.505 | 0.5 | 536971 |
| 2005-07-07 | 0.47 | 0.51 | 0.48 | 150612 |
| 2005-07-08 | 0.45 | 0.5 | 0.46 | 971883 |
| 2005-07-11 | 0.385 | 0.41 | 0.4 | 1362658 |
| 2005-07-12 | 0.35 | 0.395 | 0.38 | 1369840 |
| 2005-07-13 | 0.385 | 0.42 | 0.4 | 492783 |
| 2005-07-14 | 0.38 | 0.43 | 0.42 | 635662 |
| 2005-07-15 | 0.41 | 0.49 | 0.45 | 690040 |
| 2005-07-18 | 0.45 | 0.48 | 0.451 | 432663 |
| 2005-07-19 | 0.43 | 0.45 | 0.43 | 478641 |
| 2005-07-20 | 0.39 | 0.41 | 0.41 | 652497 |
| 2005-07-21 | 0.39 | 0.405 | 0.4 | 1105122 |
| 2005-07-22 | 0.38 | 0.42 | 0.4 | 372682 |
| 2005-07-25 | 0.38 | 0.42 | 0.39 | 595767 |
| 2005-07-26 | 0.37 | 0.4 | 0.37 | 539835 |
| 2005-07-27 | 0.37 | 0.4 | 0.37 | 480052 |
| 2005-07-28 | 0.37 | 0.42 | 0.38 | 373011 |
| 2005-07-29 | 0.36 | 0.39 | 0.39 | 216871 |