Borrowing from Bull Durham:
"Its a simple game. You hit the ball, you catch the ball, you throw the ball. Some days you win, some days you lose, some days it rains."
Any other explanation of why things happen on a day to day basis in the market is pretty lame. There is no PPT, no black ops options team. It is fear and greed that causes individuals, traders, and fund managers to do what they do.