8.2 Long and Short Option Positions
Key Takeaways
- The four basic positions are long call, short call, long put, and short put.
- Long option maximum loss is the premium paid; that is the only money at risk.
- A naked short call has unlimited risk; a short put risks strike minus premium.
- Call breakeven = strike + premium; put breakeven = strike - premium.
- Long call gain is unlimited; long put gain is capped at strike minus premium.
The Four Basic Positions
Almost every options question on the Series 7 builds on four positions. Memorizing their market view, premium flow, and risk profile lets you answer max-gain, max-loss, and breakeven items in seconds.
| Position | Market view | Premium | Right/Obligation | Max gain | Max loss |
|---|---|---|---|---|---|
| Long call | Bullish | Pays | Right to buy | Unlimited | Premium |
| Short call | Bearish/neutral | Receives | Obligation to sell | Premium | Unlimited (naked) |
| Long put | Bearish | Pays | Right to sell | Strike − premium | Premium |
| Short put | Bullish/neutral | Receives | Obligation to buy | Premium | Strike − premium |
Long Call (Buy a Call)
Bullish. Maximum loss is the premium; maximum gain is unlimited because the stock can rise without ceiling.
Example — Buy 1 XYZ 50 call @ $3:
| Item | Formula | Result |
|---|---|---|
| Max gain | Unlimited | Stock can rise infinitely |
| Max loss | Premium | $3 x 100 = $300 |
| Breakeven | Strike + premium | $50 + $3 = $53 |
Above $53 the buyer profits; at or below $50 the call expires worthless and the full $300 is lost.
Short Call (Write a Call)
Bearish to neutral. The writer keeps the premium if the call expires worthless, but a naked (uncovered) short call carries unlimited risk because the writer must buy shares at any market price to deliver them at the strike.
Example — Sell 1 XYZ 50 call @ $3:
| Item | Formula | Result |
|---|---|---|
| Max gain | Premium | $3 x 100 = $300 |
| Max loss | Unlimited | Stock can rise infinitely |
| Breakeven | Strike + premium | $50 + $3 = $53 |
Warning: The most dangerous retail position on the exam is the naked short call — unlimited loss. It requires the highest options approval level (covered in 8.6).
Long Put (Buy a Put)
Bearish. Maximum loss is the premium; maximum gain occurs if the stock falls to zero, so gain is capped at strike minus premium.
Example — Buy 1 XYZ 50 put @ $4:
| Item | Formula | Result |
|---|---|---|
| Max gain | Strike − premium | ($50 − $4) x 100 = $4,600 |
| Max loss | Premium | $4 x 100 = $400 |
| Breakeven | Strike − premium | $50 − $4 = $46 |
Below $46 the buyer profits. At a stock price of $0 the buyer sells worthless stock for $50, netting $46 per share after the premium.
Short Put (Write a Put)
Bullish to neutral. The writer keeps the premium if the put expires worthless but is obligated to buy 100 shares at the strike if assigned. Maximum loss is strike minus premium (realized if the stock hits zero).
Example — Sell 1 XYZ 50 put @ $4:
| Item | Formula | Result |
|---|---|---|
| Max gain | Premium | $4 x 100 = $400 |
| Max loss | Strike − premium | ($50 − $4) x 100 = $4,600 |
| Breakeven | Strike − premium | $50 − $4 = $46 |
Exam tip: A short put is NOT unlimited risk — a stock cannot fall below zero. Only the naked short call has truly unlimited risk.
Breakeven Cheat Sheet
| Position | Breakeven |
|---|---|
| Long/Short call | Strike + premium |
| Long/Short put | Strike − premium |
Memory tip: CAP — Calls Add Premium to the strike. PSP — Puts Subtract Premium from the strike. Breakeven is identical for the long and short side of the same contract because both parties "meet" at that price.
Matching Position to Outlook
When a question describes a client's market view, map it to the right position quickly:
| Client expects | Best single position | Why |
|---|---|---|
| Sharp rise | Long call | Unlimited upside, premium-limited risk |
| Mild rise / income | Short put | Collect premium, willing to buy at strike |
| Sharp drop | Long put | Profits as stock falls, capped loss |
| Mild drop / income | Short call (covered) | Collect premium, willing to sell at strike |
A short put is often used by an investor who would not mind owning the stock at the strike — the premium effectively lowers the purchase price to the breakeven. A short call written against owned shares (covered) is an income play, while a short call with no shares (naked) is a pure bearish bet with unlimited exposure.
Common Traps
- The exam loves to ask max loss on a long position; the answer is always the premium, never "unlimited."
- Watch the multiplier: a $4 premium means $400, and a $4,600 max put loss is ($50 − $4) x 100, not $50 x 100.
- A short put is not unlimited risk — only the naked short call is. A short put's worst case is the stock going to zero, capping loss at strike minus premium.
- A long position's gain is the short counterparty's loss and vice versa; the two payoff diagrams are mirror images about the shared breakeven price.
An investor buys an ABC 60 call for $4. What is the maximum potential loss?
An investor writes an uncovered XYZ 45 call for $3. What is the maximum potential gain?
What is the breakeven point for an investor who buys 1 DEF 70 put @ $5?