Quick Answer
A covered call means the writer already owns the underlying stock, limiting risk, while a naked (uncovered) call carries unlimited risk since the writer owns nothing to deliver. Cash-secured puts and covered puts limit a put writer's risk in similar ways. Naked positions require a margin account; covered positions generally do not.
Understanding the difference between covered and uncovered positions is important because it determines your risk level. The SIE exam tests this concept frequently, especially around naked call writing.
Covered Call
- The writer owns the underlying stock while selling the call
- If assigned, the writer delivers shares already owned (no need to buy them at market price)
- Limited risk: the writer's loss on the stock is offset by premium received
Max gain = premium received + (strike price - purchase price of stock) Max loss = purchase price of stock - premium received (if stock goes to $0)
- One of the most popular options strategies
- Considered an income strategy: generates premium income on existing holdings
- Best for investors who are willing to cap their upside in exchange for immediate income
Exam Tip: Gotchas
- A covered call limits upside but does NOT eliminate downside risk on the stock itself. The stock can still fall to zero; the premium only partially offsets that loss.
Uncovered (Naked) Call
- The writer does NOT own the underlying stock
- If assigned, must buy shares at the current market price and sell at the strike price
- Unlimited risk: if the stock price rises dramatically, losses are theoretically unlimited
- Requires a margin account and substantial margin requirements
- This is the highest-risk options strategy
Max gain = premium received Max loss = unlimited (stock can rise indefinitely)
Cash-Secured Put
- The writer sets aside cash equal to the exercise price to buy the stock if assigned
- If assigned, uses the reserved cash to buy the stock at the strike price
- Risk is limited and defined
Max gain = premium received Max loss = strike price - premium received (if stock goes to $0)
Covered Put (a distinct strategy)
- The writer is short the stock AND short the put; the short-stock position "covers" the assignment
- If assigned, the writer must buy the stock at the strike price. Because the writer is already short that stock, the newly bought shares go straight to closing out the short position, instead of leaving the writer holding stock with no matching obligation
- Because of the short-stock leg, upside risk is theoretically unlimited if the stock rises
Max gain = premium received + (short-sale price - strike price) Max loss = unlimited (the short stock loses as the price rises)
Exam Tip: Gotchas
- "Short" means two different things here. Being short the stock is a position from an earlier trade (you borrowed and sold shares). Being short the put describes writing that option. The two shorts happen to line up in a covered put, which is why assignment closes the stock position instead of creating a new one.
Uncovered (Naked) Put
- The writer does NOT have cash set aside to purchase the stock
- Still obligated to buy at the strike price if assigned
- Same theoretical max loss as a cash-secured put, but with less capital backing the position
Max gain = premium received Max loss = strike price - premium received (if stock goes to $0)
Exam Tip: Gotchas
- Naked puts have a defined maximum loss (strike price minus premium), while naked calls have unlimited maximum loss. These are not equally risky.
Risk Comparison
| Strategy | Owns Underlying? | Max Gain | Max Loss | Risk Level |
|---|---|---|---|---|
| Covered call | Yes (owns stock) | Premium + (strike - purchase price) | Purchase price - premium | Moderate |
| Naked call | No | Premium received | Unlimited | Highest |
| Cash-secured put | Cash reserved | Premium received | Strike - premium | Moderate |
| Covered put | Short the stock | Premium + (short price - strike) | Unlimited | High |
| Naked put | No cash reserved | Premium received | Strike - premium | High |
Exam Tip: Gotchas
- Naked (uncovered) call writing has UNLIMITED risk and is the most dangerous options strategy. This is one of the SIE's most frequently tested topics. The stock can theoretically rise to infinity, and the naked call writer must buy at the market price and sell at the much lower strike price.
Margin Requirements
- Covered calls can be written in a cash account (you already own the stock)
- Naked calls and naked puts require a margin account
- Naked options have higher margin requirements because of their elevated risk
- Firms may impose stricter requirements than the regulatory minimums
Exam Tip: Gotchas
- "Covered" means different things for calls vs puts. For calls, covered means owning the stock. For puts, a covered put means being short the stock (unlimited upside risk), while a cash-secured put means having cash set aside (defined risk). The exam may test this distinction.
- Covered calls can be written in a cash account, but naked options always require a margin account.
What Should You Check on Exam Day?
- Can you explain why a naked (uncovered) call has unlimited risk while a covered call's risk is limited?
- Do you know the difference between a cash-secured put and a naked put?
- Can you explain why a covered put has unlimited risk even though it is called "covered"?
- Do you know which strategies can be written in a cash account versus which require a margin account?
- Can you state the max gain and max loss formulas for a covered call and a naked call?