Basic Long and Short Option Position Economics

Before combining options with stock in multi-leg strategies, you need to know the max gain, max loss, and break-even for each of the four basic single-option positions. These formulas are tested directly and form the building blocks for every strategy calculation.

Long Call (Buyer)

The buyer of a call has a bullish outlook; they profit when the stock rises.

• The call buyer pays the premium upfront and has the right (not obligation) to buy shares at the strike price
• If the stock rises well above the strike, the profit potential is unlimited
• If the stock stays at or below the strike, the call expires worthless and the buyer loses only the premium

Exam Tip: Gotchas

A long call buyer can only lose the premium paid, no matter how far the stock drops. The loss is capped at the premium, but the upside is unlimited.

Short Call (Writer/Seller)

The writer of a call has a neutral to bearish outlook; they profit when the stock stays flat or falls.

• The call writer collects the premium and has the obligation to sell shares at the strike if exercised
• An uncovered (naked) call writer faces unlimited risk because the stock can rise without limit
• A covered call writer has capped risk because they already own the shares

Exam Tip: Gotchas

A naked (uncovered) call writer has unlimited risk because the stock can rise without limit. A covered call writer's risk is capped because they already own the shares. The exam loves to test whether the call is covered or uncovered.

Long Put (Buyer)

The buyer of a put has a bearish outlook; they profit when the stock falls.

• The put buyer pays the premium and has the right to sell shares at the strike price
• Maximum gain occurs if the stock falls to zero; the buyer sells worthless shares at the strike price
• If the stock stays at or above the strike, the put expires worthless

Exam Tip: Gotchas

A long put's maximum gain is the strike price minus the premium (not unlimited). The stock can only fall to zero, so put gains are always capped.

Short Put (Writer/Seller)

The writer of a put has a neutral to bullish outlook; they profit when the stock stays flat or rises.

• The put writer collects the premium and has the obligation to buy shares at the strike if exercised
• Maximum loss occurs if the stock falls to zero; the writer must buy worthless shares at the strike price
• The short put writer is often willing to buy the stock at the strike price and views the premium as a bonus

Think of it this way: A short put writer is like someone who says, "I'd love to buy that stock at $50. Pay me a premium, and I promise to buy it at $50 if it drops." They collect income while waiting for a price they already want.

Exam Tip: Gotchas

Long call and short put are both bullish. Long put and short call are both bearish. If you remember that buyers and sellers are on opposite sides, the outlook pairings fall into place.

Break-Even Rules Summary

This is the simplest and most reliable pattern for the exam:

Critical point: The buyer and seller of the same contract share the same break-even point. At the break-even, one side's gain exactly equals the other side's loss.

Quick Reference: All Four Positions

Exam Tip: Gotchas

Break-even points for calls always use ADDITION (strike + premium). Break-even points for puts always use SUBTRACTION (strike - premium). This applies regardless of whether you are the buyer or the seller. The buyer and seller of the same contract share the SAME break-even point.