Mistake 1, critical severity
Selling Naked Calls (Unlimited Upside Risk)
Selling calls without owning shares exposes you to unlimited losses if the stock rallies. A single short squeeze or takeover announcement can destroy an account overnight.
The fix
Never sell naked calls unless you are a professional with strict risk management. Use bear call spreads instead for defined risk. The wing protection costs a small amount but caps your maximum loss.
What it looks like. Sell naked $30 call on GME for $2.00 premium. GME short squeezes to $120. Loss: $88 per share ($8,800 per contract). That is 44x the premium collected. One trade destroys the account.
Mistake 2, critical severity
Oversizing Naked Put Positions
Selling more naked puts than your account can handle if assigned. A market crash means getting assigned on all positions simultaneously when prices are lowest.
The fix
Only sell puts you can fully cover with cash. Limit total naked put exposure to 30% of account. Use put spreads for the rest. During 2020, traders who sold naked puts on multiple stocks got margin called and liquidated at the worst possible time.
What it looks like. Sell 10 naked puts on 5 different stocks with $50,000 account. Market drops 15%. All puts go ITM. Assignment requires $200,000 in stock purchases. Margin call forces liquidation at bottom.
Mistake 3, high severity
Ignoring Gap Risk on Naked Positions
Believing you can manage naked positions with stop-losses. Overnight gaps bypass stops entirely. Earnings, takeovers, and FDA announcements can move stocks 30-50% overnight.
The fix
Accept that stops do not protect against gaps. If you sell naked options, only do so on broad index ETFs (SPY) where gaps above 5% are extremely rare. Never sell naked on single stocks with upcoming catalysts.
What it looks like. Sell naked puts on biotech stock. FDA rejects drug after hours. Stock gaps down 60%. Loss is 30x the premium collected. No stop-loss could have helped.
Mistake 4, high severity
Confusing Win Rate with Profitability
Naked selling wins 80-90% of the time, creating false confidence. Traders increase size, believing they have found easy money. Then one outlier event reveals the true risk.
The fix
Track your average win vs average loss. If wins average $200 and losses average $2,000, you need 91% win rate just to break even. Use defined-risk alternatives that cap the worst-case loss.
What it looks like. Win 15 trades in a row selling naked strangles. Average win: $300. Total profit: $4,500. Trade 16: stock gaps 20%. Loss: $6,000. Entire 5 months of profits plus $1,500 additional loss.
Mistake 5, medium severity
Failing to Understand Margin Requirements
Not realizing that brokers can increase margin requirements during volatility, forcing you to close positions at the worst time. Margin calls in a crisis create forced selling.
The fix
Keep margin utilization below 50%. Maintain a cash buffer for increased requirements. Use defined-risk strategies to avoid margin expansion risk entirely.
What it looks like. Using 80% of margin for naked options. VIX spikes from 15 to 35. Broker increases margin requirements. Forced to close positions at a loss to meet margin call. Locked in $10,000 in losses that would have recovered.
