Managing Risk When Selling Options
Options introduce risks that are different from simply owning shares. Selling options can generate premium, but assignment obligations, leverage, volatility, and movements in the underlying stock can create substantial losses. My approach to risk management starts with position sizing, understanding the underlying company, and avoiding obligations I cannot comfortably manage.
Position Sizing
Position sizing is one of my primary risk controls. I do not use a universal percentage limit for every company because position size depends on my conviction, existing exposure, stock price, volatility, and the obligation created by the options contract.
The basic question is simple: if I am assigned, can I comfortably manage the resulting position without using margin or creating an oversized concentration in the portfolio?
The theoretical maximum loss on a cash-secured put occurs if the underlying stock falls to zero. The loss is the strike price minus the premium received, multiplied by 100 shares per contract.
Example: $50 strike − $1 premium = $49 effective cost basis ($4,900 theoretical maximum loss per contract).
Know the Obligation Before Entering
Before selling an option, I want to understand exactly what obligation I am accepting. A cash-secured put may require me to purchase 100 shares per contract at the strike price. A covered call may require me to sell 100 shares per contract at the strike price. I do not sell naked options or use margin. My goal is to ensure the capital or shares necessary to satisfy the contract are already available.
- Cash-Secured Puts: Loss is limited because the underlying stock cannot fall below zero. However, the potential loss can still be substantial if the stock falls significantly below the strike price.
- Covered Calls: The short call is covered by the shares you own, eliminating the unlimited upside risk associated with a naked call. However, the underlying shares can still decline substantially, and the call premium only offsets a portion of that loss.
Diversification & Correlation
Owning many tickers does not automatically eliminate concentration risk. Several companies can respond similarly to changes in interest rates, economic conditions, or investor sentiment even if they are different businesses.
I manage more than 100 tickers, but I still pay attention to company and sector exposure. Broad market declines can affect many positions simultaneously, particularly when multiple holdings share similar risk factors.
Can I Comfortably Manage the Outcome?
Before selling a cash-secured put, I consider what the portfolio would look like if I were assigned. I do not just look at the premium. If assignment would require margin, create an oversized position, or leave me uncomfortable holding the company through a significant decline, I should not open the contract.
The same applies to covered calls. If I am not comfortable selling the shares at the strike price, I should reconsider the call.
Multiple Assignments at the Same Time
One risk with selling multiple cash-secured puts is that assignments are often correlated. During a broad market decline, several companies can fall below their put strikes at the same time.
I therefore look beyond the risk of an individual contract. I also consider the combined cash obligation if multiple CSPs were assigned during the same period. A portfolio can comfortably handle one assignment and still be poorly positioned for ten simultaneous assignments.
Earnings and Macroeconomic Events
Scheduled events can materially change the risk of a short options position. Before opening contracts, I review earnings dates and major macroeconomic events such as Federal Reserve meetings, inflation reports, and labor data.
I often prefer waiting until after significant announcements before selling a new contract. Higher premium before an event is not free money. The market is pricing additional uncertainty.
No Margin
I do not use margin to support my options strategy. Cash-secured puts are backed by cash, and covered calls are supported by shares or an appropriate long call position. This limits the number of contracts I can sell, but it also prevents me from relying on borrowed buying power to maintain positions during a market decline.
Low Delta Does Not Mean No Risk
I generally sell options around 0.10 to 0.20 delta, but a low-delta contract can still move against me. Delta changes as the underlying stock moves, particularly as expiration approaches. I use lower delta to reduce the probability of an option expiring in the money, not as a guarantee that assignment or call-away will not occur.
⚠️ This article is for educational purposes only. Options trading involves substantial risk of loss. Not financial advice.