Tom JonesTom Jones said it best. why why why Delilah......well Timmins has a hard time moving because..
The smaller a float, the more volatile a stock can become. If a stock has one million shares in its float and announces really good news, the share price will soar due to their being hardly any shares in the float. If there are hardly any shares in the float, this means that shares are harder to buy and the price to buy shares will go up.
If a stock has a really big float, this would mean that the stock is prone to less explosive moves. A stock with a float of 100 million shares won't rise 100% in one day, but a stock with a float of 1 million shares could.