Options 101: Calls, Puts, Leverage & Premium Risk
An option is the only common instrument where you can be completely right about a company and still lose every dollar you put in. Getting the direction correct is not enough — you also have to be right about when.
A right, not a position
A call gives its buyer the right to buy shares of a stock at a fixed strike price for a set period. A put gives the right to sell at the strike. The buyer pays a premium up front for that right and is never obliged to use it.
That word 'right' is what makes options different from owning the stock. If the trade goes against you, you simply don't exercise, and your loss stops at the premium. That's a genuine ceiling on the downside and it's why options get described as limited-risk.
The part the description leaves out is that the ceiling is usually the whole investment. An option expiring out-of-the-money isn't worth less than you paid — it's worth zero. Losing 100% is not the unlucky tail of buying options; it's the ordinary outcome when the stock doesn't move far enough in time.
The buyer chooses. The seller must comply. Every option has one of each on it.
Where the leverage actually comes from
An option contract generally represents 100 shares of the underlying stock. So a premium quoted as $3.50 is $3.50 per share — $350 for the contract, and that multiplier is the entire source of the leverage.
It cuts in both directions and people only rehearse one of them. $350 gives you exposure to 100 shares that might cost $5,000 to buy outright, so a small move in the stock is a large percentage move on your $350. The same arithmetic means a modest adverse move wipes out a large fraction of it.
This is also why option quotes are so easy to misread. A contract advertised at 'only $2' costs $200, and a position built from ten of them is $2,000 at risk, not $20.
Two things you are paying for
The SEC's bulletin lists what sets a premium: the stock price relative to the strike, the time left until expiry, and the volatility of the stock. Convention splits the first from the other two and gives them names.
Intrinsic value is what the option would be worth if it expired right now — the amount it is in-the-money, and never less than zero. A $50-strike call on a $52 stock has $2 per share of intrinsic value, $200 on the contract.
Everything above that is time value: what you pay for the possibility that things improve before expiry. Time value decays toward zero as expiration approaches and is gone entirely at expiry. So a buyer holding to expiration is guaranteed to lose that portion — which is why being right about direction but wrong about timing still loses money.
A call is the right to buy at the strike; a put is the right to sell. One contract covers 100 shares, which is where the leverage comes from — and an option that expires out-of-the-money is worth exactly zero, not a reduced amount.
Sources
- Investor Bulletin: An Introduction to Options — U.S. Securities and Exchange Commission (2026)