Does size matter? (order size)

[fecatah]

Just had a quick question, so I thought Id give it my second post

I was wondering if the size of an order you place on the market matters.

If I were to place an order for 1000 shares, on a stock that most people only buy say 300 shares of, would this make a difference to the market makers?

Just wondering, Thanks!!

[Fredledingue]

No. 1000 shares is nothing of significance.
Your trade won't affect the intraday chart unless you buy for one million dollars.
Depends which stock of course. I'm talking about known companies with mkt cap above one billion.
Now if you trade penny stocks, you can double the stock price with $100. Serious.

[Stocktrading101]

Adding to what Fredledingue is saying here but basically it depends on the stock you are trading.

A stock like Apple (AAPL), 1000 shares will not affect anything, but if you are trading a small cap stock that say only moves volume (total shares traded) of 100,000 per day well then your 1000 shares bought at the market at the same time may move the stock price a bit.

A great way to see if your purchase will move the stock is to pull up a level II quote and see exactly how many shares are available at the current bid or ask .