Single-Leg Strategies

Four Fundamental Positions

Options come in two types (Call, Put) and two directions (buy, sell). Combine them and you get four single-leg strategies:

Strategy	Outlook	Rule of Thumb
Long Call	Strongly bullish	Expect a big move up → buy Call
Long Put	Strongly bearish	Expect a big move down → buy Put
Short Call	Not bullish	Don’t expect it to rise → sell Call
Short Put	Not bearish	Don’t expect it to fall → sell Put

Notice the difference in wording. Buyers need a big directional move to overcome the premium cost. Sellers need a mild outcome — the underlying just has to not move against them too much.

This distinction shapes completely different P&L profiles. Let’s walk through each one.

Long Call

You buy a call option with a $25 strike and a $2 premium. One contract = 100 shares, total cost $200.

Three scenarios at expiration:

Stock at $28 — exercise at $25, sell at market for $28, gross profit $3. Subtract the $2 premium: net $1 per share, $100 total.

Stock at $23 — why pay $25 for something worth $23? Let it expire. Loss = premium paid: $200.

Stock at $27 — exercise profit of $2 exactly covers the premium. Breakeven.

Key characteristics:

• Max loss: premium paid (fixed, known upfront)
• Max gain: theoretically unlimited
• Breakeven = strike + premium

This is the most popular beginner strategy. Downside is capped, which feels safe. The catch: you need a substantial move upward to profit — a small rally might still leave you in the red.

Short Call

Same option, opposite side. Buyer’s gain is the seller’s loss, so just flip the Long Call P&L chart upside down.

Key characteristics:

• Max gain: premium received (fixed, known upfront)
• Max loss: theoretically unlimited
• Breakeven = strike + premium

The seller bets “the stock won’t rise above the strike.” Win the bet, keep the premium. Lose it, and every dollar the stock climbs above the strike costs you a dollar — with no ceiling.

Naked short calls (selling without owning the underlying stock) carry the highest risk of any options strategy. Beginners should steer clear.

Long Put

You buy a put with a $25 strike and a $2 premium.

Stock drops to $22 — buy on the market at $22, exercise to sell at $25, gross $3. Minus the $2 premium: net $1 per share.

Stock rises to $28 — nobody would sell $28 stock for $25. Let it expire. Loss: $200.

Breakeven at $23 ($25 - $2).

Key characteristics:

• Max loss: premium paid
• Max gain: strike - premium (maximized if stock drops to zero)
• Breakeven = strike - premium

Long Put is the standard way to insure a position. It’s also a cleaner alternative to short selling — your downside is defined, unlike a short stock position where losses are theoretically unlimited.

Short Put

Flip the Long Put chart upside down.

Key characteristics:

• Max gain: premium received
• Max loss: strike - premium (if stock drops to zero)
• Breakeven = strike - premium

The seller bets “the stock won’t fall below the strike.” Win, and you pocket the premium. Lose, and you’re forced to buy a falling stock at the strike price.

Sounds risky. But there’s a classic approach that turns this risk into an opportunity.

Case Study: Buffett’s Coca-Cola Naked Put

April 1993. Coca-Cola was hovering around $10.50 a share. Buffett sold 5 million put options with a $9 strike, expiring in December, collecting $1.50 per share in premium.

Scenario A — stock stays above $9. Nobody would sell stock at $9 when it’s worth more on the open market. The options expire worthless, and Buffett keeps $7.5 million in premium ($1.50 × 5 million shares).

Scenario B — stock drops below $9. Buffett buys 5 million shares at $9, but factoring in the $1.50 premium already collected, his effective cost basis is just $7.50 per share. He wanted to add more Coca-Cola anyway — $7.50 was a price he’d happily pay.

What actually happened: over 1993-1994, Coca-Cola traded between $9.70 and $11. Never touched $9. The stock itself generated no capital gains for Buffett during that period, but selling puts netted him $7.5 million.

The prerequisite is clear — Buffett was confident Coca-Cola wouldn’t drop below $9, and if it did, he was happy to own it at that price. Not every stock deserves a naked put.

P&L Before Expiration

Everything above describes P&L at expiration. In practice, most traders close positions early — selling to close (for buyers) or buying to close (for sellers).

The math is straightforward:

• Buyer’s P&L = closing price - opening price
• Seller’s P&L = opening price - closing price

Real example: an investor bought 10 call contracts at 0.1582 per share. One week later, the market rallied, and she closed at 0.3158. Profit = (0.3158 - 0.1582) × 10,000 × 10 = $15,760 — a 99.62% return in seven days.

The key difference from expiration P&L: before expiration, options still carry time value. If you’re right on direction but the move is too small, time decay can eat your profits. Getting the direction right isn’t enough — you need to be right enough, fast enough.

Common Mistakes

Mistake 1: Over-Leveraging

Screenshots of 500% option gains are intoxicating. Going all-in on OTM options is the natural impulse. But OTM options are cheap because the odds are against you. A $0.05 near-expiration option looks like a lottery ticket — and most lottery tickets expire worthless.

Rule of thumb: never risk more on a single options trade than you can afford to lose completely.

Mistake 2: Ignoring Time Decay

You buy a call with two weeks to expiration. Stock does nothing for three days, and your option is down 20%. Nobody is cheating you — time value is evaporating. The closer to expiration, the faster it melts.

If your thesis needs time to play out, buy options with longer expirations. Paying more premium for time is far more sensible than gambling on a short-dated explosion.

Mistake 3: Selling Naked Without Risk Management

Selling puts for premium income feels like steady cash flow — until the underlying craters. Selling calls for small gains feels easy — until a gap up wipes out months of premium.

Naked selling has inherently unfavorable risk/reward — limited gains, potentially unlimited losses. Before selling options:

1. Define a hard stop-loss level
2. If selling puts, genuinely want to own the stock at the strike price
3. If selling calls, hold the underlying shares (Covered Call)

Quick Reference

Strategy	Outlook	Max Loss	Max Gain
Long Call	Strongly bullish	Premium	Unlimited
Short Call	Not bullish	Unlimited	Premium
Long Put	Strongly bearish	Premium	Strike - Premium
Short Put	Not bearish	Strike - Premium	Premium

Exercise

Suppose you’re bullish on NVIDIA (NVDA), currently at $120. Your budget is $500.

1. Would you choose Long Call or Short Put? Why?
2. Pick a strike price and expiration date — explain your reasoning.
3. What’s your worst-case loss? Can you live with it?

Suggested Answer

1. $500 budget → Long Call is better. Max loss is limited to the premium ($500), giving you full control over risk. Short Put is also bullish, but if NVDA crashes you could be forced to buy shares at the strike price — losses far exceeding $500.
2. Strike around $120–$125 (ATM or slightly OTM), expiration 30–60 days out. Too short and theta decay eats you alive; too long and the premium is too expensive. $500 buys roughly 1–2 contracts.
3. Worst case: lose $500 (premium goes to zero). If that’s an acceptable loss for you, the risk/reward profile is reasonable.