Knowing How Many Shares to Buy

In the past, many people bought stocks in whatshares you want and pay the same price. What this
were called round lots of 100 shares each time theymeans is that you can focus on the more important
made a trade. Brokerages also made an effort tonumber which is dollars invested instead of shares
make sure that investors also followed this practice.purchased. If you have a $1000 to invest, buy a
They did so by making a trade have a cheaper$1000 of the best stock you can find. It doesn't
commission if it was a multiple of 100 shares. If youmatter if it means you only buy 20 shares of a $50
wanted to say, buy 75 shares, you paid a higherstock or 50 shares of a $20 dollar stock. What you
commission. In the end, people did not want to paywant to focus on is equity selection. Buy the best
the higher commission.stock you can find regardless of price.
The effect this had on investors was to train themThe real number you want to focus is the percent
to reduce the price of the stocks they traded. Itreturn you get on your money. Going back to our
was much easier to pay for a 100 shares of a $5example. If you buy a $1000 worth of shares of a
dollar stock which added up to $500 than to buy aparticular company and if you sell it you make $1200,
100 shares of a $50 dollar stock which is a $5000your profit is $200 dollars. As a percentage, 200
trade. What this does is make an investor choosedivided by 1000 equals a 20 percent return.
cheaper stocks. Unfortunately, in the stock market,The key then when deciding how much to invest is
you often get what you pay for. If you buy cheapnot the number of shares, but the dollar amount
stocks, you'll probably get cheap results as well.invested and the return it generates.
Today, though, you can buy stocks in any amount of