Due to current prices and trends.
In anticipation for the future.
Based on past sales.
Movement of Interest rates
Earning of a Corporation
Lower earnings or estimates are predicted.
Low credit ratings.
Company stock is taking a break
Profit taking from employee stock distribution
Cheaper to buy
No news related reason at all
A uptrend turns down and solidly crosses the trend line.
A downtrend turns up and solidly crosses the trend line.
A downtrend turns up and stays at the trend line.
A uptrend rises and remains at the trend line.
Here's an interesting quiz for you.