Individual share prices move up and down during the day, and over days, weeks and years share prices change by a significant amount. (sapling.com)
Share prices move based on announcements of international partnerships and plans to expand production capacity, with little or no consideration of whether companies will be able to follow through. (canadianbusiness.com)
Because share prices move frequently, you are exposed to the risk that the shares might fall in value. (moneysmart.gov.au)