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.
Last updated: June 2026

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.

PositionMarket viewPremiumRight/ObligationMax gainMax loss
Long callBullishPaysRight to buyUnlimitedPremium
Short callBearish/neutralReceivesObligation to sellPremiumUnlimited (naked)
Long putBearishPaysRight to sellStrike − premiumPremium
Short putBullish/neutralReceivesObligation to buyPremiumStrike − 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:

ItemFormulaResult
Max gainUnlimitedStock can rise infinitely
Max lossPremium$3 x 100 = $300
BreakevenStrike + 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:

ItemFormulaResult
Max gainPremium$3 x 100 = $300
Max lossUnlimitedStock can rise infinitely
BreakevenStrike + 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:

ItemFormulaResult
Max gainStrike − premium($50 − $4) x 100 = $4,600
Max lossPremium$4 x 100 = $400
BreakevenStrike − 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:

ItemFormulaResult
Max gainPremium$4 x 100 = $400
Max lossStrike − premium($50 − $4) x 100 = $4,600
BreakevenStrike − 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

PositionBreakeven
Long/Short callStrike + premium
Long/Short putStrike − 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 expectsBest single positionWhy
Sharp riseLong callUnlimited upside, premium-limited risk
Mild rise / incomeShort putCollect premium, willing to buy at strike
Sharp dropLong putProfits as stock falls, capped loss
Mild drop / incomeShort 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.
Test Your Knowledge

An investor buys an ABC 60 call for $4. What is the maximum potential loss?

A
B
C
D
Test Your Knowledge

An investor writes an uncovered XYZ 45 call for $3. What is the maximum potential gain?

A
B
C
D
Test Your Knowledge

What is the breakeven point for an investor who buys 1 DEF 70 put @ $5?

A
B
C
D