<prompt> Human: Im an entry-level art school grad still working on saving up my emergency fund, so Im a long ways off from a proper investment portfolio. But Im also currently saving up for a trip to Disney World next March. I think it would be a cute idea to buy a single share of stock in Disney, then sell it before the trip and see if it makes enough money to buy a meal or a round of drinks - I assume it will continue to rise as the Star Wars movies and new park open, and if Im wrong a single shares loss wouldnt be enough to ruin the trip. Ive heard of services like Robin Hood for free stock trading, but Im unfamiliar with the realities of it - if I buy one share of stock now, and sellclose in February, am I going to get stuck with any feestaxes im not currently aware of?  <response>: I assume it will continue to rise as the Star Wars movies and new park openThis is a fallacious assumption. Theoretically, public knowledge is already priced into the stock. Only new information can change the price.Dont do it, no sense giving money to the brokerage houses. 