Deep Dive · Lesson 8
How Options Make
or Lose Money
Big Idea
Options make or lose money based on: stock price, strike price, premium, expiration date, whether call or put. Beginners think "stock goes up → call buyer wins" — but the stock must move enough to overcome the premium paid.
- Option buyers: pay premium, need option to become valuable enough to cover that cost
- Option sellers: receive premium, take on risk of fulfilling the contract
Buyer's Perspective
When someone buys an option, the premium is the most they can usually lose. To make money, the option must become worth more than the premium paid. The buyer asks: "Did the stock move in the right direction AND did it move enough?"
Call Buyers
When the Stock Must Rise Enough
A call buyer wants the stock to rise — but it must rise enough to cover the premium.
Example Setup
- Acme at $50, call strike $55, premium $200, 100 shares
- Premium per share: $200 ÷ 100 = $2
- Breakeven: $55 + $2 = $57
Outcomes
- Below $55 → expires worthless → −$200
- At $55 → no intrinsic value → −$200
- At $56 → $1 intrinsic value → −$100
- At $57 → breaks even → $0
- Above $57 → trade begins to profit
Call Buyer P&L
| Stock at Expiration | Option Value | P&L |
|---|---|---|
| $50 | $0 | −$200 |
| $55 | $0 | −$200 |
| $56 | $100 | −$100 |
| $57 | $200 | $0 |
| $60 | $500 | +$300 |
| $65 | $1,000 | +$800 |
Max loss = premium paid. Possible gain can be large.
Put Buyers
When the Stock Must Fall Enough
A put buyer wants the stock to fall — but it must fall enough to cover the premium.
Example Setup
- Acme at $50, put strike $45, premium $200, 100 shares
- Premium per share: $2
- Breakeven: $45 − $2 = $43
Outcomes
- Above $45 → expires worthless → −$200
- At $45 → no intrinsic value → −$200
- At $44 → $1 intrinsic value → −$100
- At $43 → breaks even → $0
- Below $43 → trade begins to profit
Put Buyer P&L
| Stock at Expiration | Option Value | P&L |
|---|---|---|
| $50 | $0 | −$200 |
| $45 | $0 | −$200 |
| $44 | $100 | −$100 |
| $43 | $200 | $0 |
| $40 | $500 | +$300 |
| $35 | $1,000 | +$800 |
Max loss = premium paid. Gain is large but not unlimited (stock can't go below zero).
Breakeven Point
Breakeven at Expiration
The breakeven is the stock price where the trade has neither profit nor loss at expiration.
- Call buyer: Breakeven = strike price + premium per share
- Put buyer: Breakeven = strike price − premium per share
"This shows why 'the stock moved in the right direction' does not automatically mean 'the option made money.'"
Sellers
The Other Side of the Trade
The seller receives the premium and often wants the option to expire worthless. But the seller takes on an obligation.
Call Seller Example
- Sell call strike $55, receive $200, 100 shares
- If Acme stays below $55 → expires worthless → seller keeps $200
- If Acme rises above $55 → call may be exercised
Call Seller P&L
| Stock at Expiration | Option Obligation | P&L for Seller |
|---|---|---|
| $50 | $0 | +$200 |
| $55 | $0 | +$200 |
| $56 | $100 | +$100 |
| $57 | $200 | $0 |
| $60 | $500 | −$300 |
| $65 | $1,000 | −$800 |
Max gain = premium. If uncovered/naked, potential loss is extremely large. If the seller owns shares, the risk is different — covered calls will be covered in a later lesson.
Put Seller Example
- Sell put strike $45, receive $200, 100 shares
- If Acme stays above $45 → expires worthless → seller keeps $200
- If Acme falls below $45 → put may be exercised
Put Seller P&L
| Stock at Expiration | Option Obligation | P&L for Seller |
|---|---|---|
| $50 | $0 | +$200 |
| $45 | $0 | +$200 |
| $44 | $100 | +$100 |
| $43 | $200 | $0 |
| $40 | $500 | −$300 |
| $35 | $1,000 | −$800 |
Max gain = premium. Loss can be large if stock falls sharply, but not unlimited (stock can't go below zero).
Summary
| Position | Maximum Gain | Maximum Loss |
|---|---|---|
| Call buyer | Large if stock rises | Premium paid |
| Put buyer | Large if stock falls | Premium paid |
| Call seller | Premium received | Very large if uncovered |
| Put seller | Premium received | Large if stock falls sharply |
Why Options Can Lose Money Even When Right
- The stock doesn't rise or fall enough to cover the premium paid
- The move happens too slowly — time value disappears as expiration approaches
- The option was too expensive at purchase
- Expected volatility falls, reducing the option's value
- The option expires before the anticipated move happens
"Options require more than a good opinion about direction. They require a good understanding of price, time, and cost."
Note on Pre-Expiration
These examples focus on expiration because at expiration time value is gone and value is mostly intrinsic value. Before expiration, prices move due to: stock price movement, time passing, expected volatility changes, interest rates, dividends, and market demand.
More advanced lessons will cover this.
Interactive Checks
Check 1 of 6
Buy call strike $55, premium $200, 100 shares.
What is the breakeven at expiration?
Check 2 of 6
Buy put strike $45, premium $200, 100 shares.
What is the breakeven at expiration?
Check 3 of 6
Buy call strike $55, premium $200. At expiration, Acme is at $56. 100 shares.
Did the call buyer make money overall?
Check 4 of 6
Buy put strike $45, premium $200. At expiration, Acme is at $40. 100 shares.
Did the put buyer make money overall?
Check 5 of 6
You sell a call, receive $200. The option expires worthless.
What happens to the premium?
Check 6 of 6
Sell put strike $45, receive $200. At expiration, Acme is at $35. 100 shares.
What is the seller's result before fees?
Common Beginner Mistakes
- ❌ Thinking a call buyer profits whenever the stock rises. Must rise enough to cover the premium. Strike $55 + $2/share premium = $57 breakeven. A stock at $56 is above strike but the trade still loses.
- ❌ Thinking a put buyer profits whenever the stock falls. Must fall enough to cover premium. Strike $45 − $2/share = $43 breakeven. A stock at $44 is below strike but trade still loses.
- ❌ Thinking option sellers receive free income. Sellers take on obligations. The premium is compensation for accepting risk.
- ❌ Ignoring contract size. One standard contract = 100 shares. A "$2 option" means $200 per contract. "That little detail can bite like a raccoon in a coin purse."
Quick Memory Tool
- Call buyer breakeven = strike + premium/share
- Put buyer breakeven = strike − premium/share
- Option buyer max loss = premium paid
- Option seller max gain = premium received
"The buyer pays for possibility. The seller gets paid for taking on obligation."
Next Lesson
Basic option risk and reward profiles — Comparing the four basic positions: buying a call, buying a put, selling a call, selling a put. Each one has a different risk and reward pattern.