What Is a Long Call Option?
A long call is the most straightforward bullish options strategy. When you buy a call option, you pay a premium for the right (but not the obligation) to purchase 100 shares of the underlying stock at the strike price before the expiration date. The long call strategy profits when the stock price rises above the breakeven point (strike price plus premium paid). It is the options equivalent of buying stock but with leverage and limited downside risk.
Long calls are popular because they offer unlimited upside potential with a known maximum loss. The most you can lose is the premium paid, which occurs if the stock stays below the strike price at expiration. This asymmetric risk/reward profile is what draws millions of traders to options. However, the trade-off is that the stock must move far enough and fast enough to overcome the premium paid and time decay.
Maximum Profit: Theoretically unlimited (stock can rise indefinitely). Maximum Loss: Limited to premium paid. Breakeven: Strike Price + Premium. Best used when you are bullish on the stock and expect a significant move within the option's timeframe.
Long Call Profit and Loss Formulas
- 1Total cost = $3.00 x 100 = $300
- 2Breakeven = $105 + $3.00 = $108.00
- 3At $115: Intrinsic value = $115 - $105 = $10.00
- 4Profit per share = $10.00 - $3.00 = $7.00
- 5Total profit = $7.00 x 100 = $700
- 6Return = $700 / $300 = 233.3%
- 7Required move to breakeven = ($108 - $100) / $100 = 8.0%
Choosing the Right Strike Price
| Strike | Moneyness | Premium | Breakeven | Delta | Best For |
|---|---|---|---|---|---|
| $90 | Deep ITM | ~$11.50 | $101.50 | 0.85 | Stock replacement, low risk |
| $95 | ITM | ~$7.50 | $102.50 | 0.70 | High probability, moderate cost |
| $100 | ATM | ~$4.50 | $104.50 | 0.50 | Balanced risk/reward |
| $105 | OTM | ~$2.50 | $107.50 | 0.30 | Lower cost, needs bigger move |
| $110 | Deep OTM | ~$1.00 | $111.00 | 0.15 | Lottery ticket, low probability |
Time Decay and Long Calls
Time decay (theta) is the biggest enemy of long call buyers. Every day that passes, your option loses time value, all else being equal. This decay accelerates as expiration approaches, with roughly one-third of the remaining time value evaporating in the final 30 days. To combat time decay, many traders choose options with at least 45-60 days to expiration, giving the stock adequate time to move while minimizing the per-day cost of theta.
- 60+ DTE options: Slowest time decay, highest premium. Best for longer-term directional trades.
- 30-45 DTE options: Moderate decay rate. Popular for swing trading and earnings plays.
- Under 14 DTE: Rapid time decay. Only use for high-conviction short-term trades or specific events.
- LEAPS (180+ DTE): Minimal daily theta cost. Used for stock replacement strategies with significant time for the thesis to play out.
- Rule of thumb: Close long calls when you have captured 50-75% of expected profit rather than holding to expiration.
Long Call vs. Buying Stock
A long call provides leveraged exposure to a stock's upside for a fraction of the cost of buying shares outright. Buying 100 shares of a $100 stock requires $10,000 (or $5,000 on margin). Buying one ATM call costs approximately $450. If the stock rises 10% to $110, the stock position gains $1,000 (10% return), while the call gains approximately $550 (122% return). However, if the stock remains flat, the stock position loses nothing while the call loses its entire $450 premium.