According to standard theory, a decrease in price will result in less supply and more demand, while an increase in price will do the opposite. This works well for most assets but it often works in reverse for stocks due to the mistake many investors make of buying high in a state of euphoria and selling low in a state of fear or panic as a result of the herding instinct. In case an increase in price causes an increase in demand, or a decrease in price causes an increase in supply, this destroys the expected negative feedback loop and prices will be unstable.  This can be seen in a bubble or crash.
Once the doors have been destroyed, the player is shifted back to Trevor who must fend off oncoming Merryweather boats, helicopters, and snipers while Michael unloads the payload. When Michael has the payload, Trevor jumps into the Dinghy and the two rush down the creek towards the ocean ; all the while, the player as Trevor must continue to fend off waves of Merryweather troops. The two eventually reach open water and beach the craft near two separate escape vehicles. They open the briefcase Michael obtained from the shipping container. The briefcase contains an ancient artifact.