Question: Online stock trading.?

Hi, can someone tell me how stock trading works? I am pretty new to this.
If a company's stock is going for $10 a share, can I, through one of the major Online stock trading sites, buy for example 100 shares for $1000 total + fee. And if the price of the stock rose to $11 two hours later, can I sell all my shares for $1 x 100 profit minus the fees?
From what I understand, the fees are flat rate and charged per transaction. So if the fee was $5. I would have $90 profit?
Is it really this simple?
Thanks! and sorry if I sounded stupid.

Answer:

That is correct. I would suggest that you become informed about how to pick stocks and when to buy/sell them before investing any money. It is always better to learn before putting your money on the table. Also, if you add margin to your brokerage account, you can avoid the 3 day holding period.

Yes it is that simple! Read more for the difficult bit!!

That's right, you got it.

So, let's say you invest in Alcoa (AA) at $10 a share. The price per trade is set by your brokerage company, but are generally between $5 and $8 for buying and selling. With your $1000 principle, you buy 100 Alcoa shares, plus the transaction fee for buying.

Then you notice latter in the day/week/month/year, Alcoa is up to $11 a share. You decide to sell, incurring that same fee again for selling, and you have a profit of $90.

Now, while it is that simple, I would advise you to look up the rules governing "free-riding". Basically, when you do this, those funds must now be "settled" before you can buy and sell again. This takes 3 days plus the trading day. So, let's say you bought/sold on Friday, you have to wait until Tuesday to sell again.