Quick Answer
A speculator who is bullish on a futures price can buy a call instead of going long the future. The call gives the right to be long at the strike, so its worst case is the premium paid. Profit begins once the futures clears breakeven, which equals the strike plus the premium.
A bullish speculator already has one tool: go long the future. Buying a call on that future expresses the same view with a capped worst case. The whole section follows from a single fact carried over from the option-theory unit: a long option can lose no more than its premium.
The Bullish, Limited-Risk Substitute
A speculator who is bullish (expects the futures price to rise) has two ways to act on it.
| Tool | Direction | Worst case | Cost to enter |
|---|---|---|---|
| Long futures | Profits as price rises | Loses point-for-point as price falls, no floor short of zero | No premium (post performance-bond margin) |
| Long call | Profits as price rises above breakeven | Loses only the premium | The premium paid |
A call is the right, not the obligation, to go long the future at the strike price. That right lets the speculator ride a rally while capping the downside.
- Risk is limited to the premium paid. The most a long call can lose is the premium, and that happens when the futures finishes at or below the strike (the call expires worthless). A long future has no such floor: it bleeds point-for-point as price falls.
- The premium is a sunk cost. Because it is paid up front and never returned, the futures must rise past a breakeven before the position turns a net profit. A long future profits on any uptick from entry; the long call needs the move to first repay the premium.
- No margin to post. The call buyer is not short anything and has no further obligation, so there is no performance-bond margin. The premium is the entire capital at risk, which matters for the return calculation below.
Think of it this way: the call is a bullish bet with a built-in stop-loss that cannot be jumped. The premium is what that guaranteed floor costs, and the price has to climb past the strike and then past the premium before the bet pays.
Exam Tip: Gotchas
- A long call caps risk at the premium; a long future does not. The reason to reach for the call over the outright future is the defined worst case. An answer that says a long call's loss is "unlimited" or "point-for-point like the future" is describing the wrong position.
- The call gives up the immediate profit the future would earn. The long future gains on any uptick; the call must first clear breakeven. That premium drag is the price of the capped downside, not a flaw to be surprised by.
Breakeven, Profit, and Return on Equity
Three calculations define the position. The speculating chapter's calculations unit is the engine; here it is applied to an option.
- Breakeven = strike price + premium. The futures must reach the strike and then rise by the premium before the position is whole. The premium is added because it is a cost the buyer must earn back.
- Profit at expiration = (futures price minus strike) minus premium, once the futures is above the strike. Below the strike, the loss is fixed at the full premium.
- Return on equity (ROE) = net profit divided by premium paid. For a bought option the entire outlay is the premium (no margin is posted), so the premium is the correct denominator. Dividing by a margin figure is wrong for a bought option.
Exam Tip: Gotchas
- The long call breakeven ADDS the premium. Breakeven is strike plus premium, not strike minus premium. The put subtracts (covered in the next section), and mixing up the two signs is the single most common calculation trap in this unit.
- ROE divides by the premium, not by margin. A call buyer posts no margin, so the premium is the whole equity outlay and the ROE denominator. An answer that divides a bought call's profit by a margin number is using the wrong base.
Memory Aid: A call climbs, so you climb the breakeven by ADDING the premium (strike + premium). The put drops, so you subtract. Same three letters, opposite signs.
Worked Example: Gold Call
A speculator is bullish on gold and buys one gold futures call struck at 1980 for a 20-point premium. Assume the futures finishes at 2030 at expiration.
Step 1: Find the breakeven.
- Breakeven = strike plus premium = 1980 plus 20 = 2000.
- The futures must clear 2000 before the position nets a profit.
Step 2: Value the call at expiration.
- Intrinsic value = futures minus strike = 2030 minus 1980 = 50 points.
- The call finished 50 points in the money.
Step 3: Net the profit and the return.
| Line | Figure (points) |
|---|---|
| Intrinsic value at expiration | 50 |
| Premium paid | minus 20 |
| Net profit | 30 |
- Net profit = 50 minus 20 = 30 points. Foots.
- ROE = net profit divided by premium = 30 divided by 20 = 150%.
Step 4: Check the worst case.
- If the futures had instead finished at or below 1980, the call would expire worthless and the loss would be the 20-point premium, and nothing more.
- Compare a long future entered at 1980: at the 2030 finish it gains the full 50 points (no premium drag), but if the market fell to 1930 it would lose 50 points, while the call's loss stays pinned at 20. That asymmetry (capped loss, full participation above breakeven) is the reason to use the call.
Exam Tip: Gotchas
- The worked profit is net of the premium, not the raw intrinsic value. The call was worth 50 at expiration, but the speculator paid 20 to hold it, so the profit is 30. An answer that reports 50 as the profit forgot to subtract the premium.
- A 150% return on a 30-point gain is normal for a bought option. The small premium base (20) makes the percentage large. This is the leverage of buying options, not a calculation error.