There seems to be positive correlation between financial investment product purchases and future purchases. Low volume entities fluctuate at a higher rate with less correlation due to a larger percentage of the product being subjected to "insider" or "arranged" trading. Nothing illegal suggested here of course, just day to day trading in the real world. High volume trading instruments, however, can clearly exhibit trending and the trend "lives" are long enough and obvious enough to ride and take profit from indicating that sometimes a bet may reveal intentions.