Utilize your financial knowledge, give your answer or opinion to the input question or subject . Answer format is not limited.

How might trading volume affect future share price?
There tends to be high volume around big changes in stock price. The volume of a stock does not remain constant and the term "fat fingers" can influence price.--> http://www.bloomberg.com/news/2014-10-01/that-japanese-fat-finger-can-absolutely-happen-in-u-s-.html That being said keshlam is 99% right when it comes to a stock moving when their is no news or earnings announcements. Check out these papers. http://onlinelibrary.wiley.com/doi/10.1111/j.1475-6803.2010.01285.x/full They do a time series analysis to try and predict future prices off of past demand during news events. They forecast using auto-regressive models.  google "forecasting autoregressive model" and the upenn lecture will be helpful. I would post another link but I cannot because I do not have enough rep/ This is more of a quant question. Hope this helps. JL