Contract Size

  

Categories: Derivatives, Stocks

Yes, size matters.

When you buy an options contract, you want to know just how much of the underlying asset you’d be purchasing (calls) or selling (puts) should you execute the trade after expiration. The contract size is this physical amount of a commodity, number of shares, or other unit of trade.

For example, if you buy a call on shares of Apple, you’d have the right at expiration to buy 100 shares of the stock at the strike price. That’s easy, and just requires you to take ownership of stock.

But buy a call on 10 contracts of gold, and you might have to take delivery on 1,000 Troy ounces (100*10) once the option expires. Hope you’ve got a big safe.

Related or Semi-related Video

Finance: What Is a Call Option?25 Views

00:00

finance a la shmoop. what is a call option? option? option, where are you? okay

00:09

yeah yeah. not phone options, call options. and a close but no cigar. a call option [man smokes in a tub of cash]

00:14

is the right to call or buy a security. the concept is easy the math is hard.

00:24

you think Coca Cola's poised for a breakout as they go into the new low

00:30

calorie beverage business. their stock is at 50 bucks a share and you can buy a [man stands on a stage as crowd cheers]

00:35

call option for $1. well that call option buys you the right

00:39

to then buy coke stock at 55 bucks a share anytime you want in the next

00:44

hundred and 20 days. so let's say Coke announces its new sugarless drink flavor

00:48

zero it's two weeks later and the stock skyrockets to fifty eight dollars a

00:53

share. you've already paid the dollar for the option now you have to exercise it. [man lifts weights]

00:59

so you buy the stock and you're all in now for fifty five dollars plus one or

01:04

fifty six bucks a share and your total value is now fifty eight bucks. well you

01:10

could turn around today and sell the bundle that moment, and you'll have

01:13

turned your dollar into two dollars of profit really fast. and obviously had the [equation on screen]

01:18

stock not skyrocketed so quickly well you would have lost everything. still you

01:23

lucked out and now you're sitting on some serious cash, courtesy of your call [two men in a tub of cash]

01:27

options. as for Coke flavor zero turned out to be nothing more than canned water.

Up Next

Finance: What Is a Put Option?
83 Views

What is a put option? A put option is a type of contract that lets the investor sell shares of a stock at a certain price and within a window of ti...

Find other enlightening terms in Shmoop Finance Genius Bar(f)