Selling options can be risky when the market moves adversely, and there isn't an exit strategy or hedge in place. Worst-case scenarios are unlikely, but it is still important to know they exist. Selling a call option has the potential risk of the stock rising indefinitely, and there isn't upside protection to stop the loss. Call sellers will thus need to determine a point at which they will choose to buy back an option contract. When selling a put, however, the risk comes with the stock falling, meaning that the put seller receives the premium and is obligated to buy the stock if its price falls below the put's strike price.