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Cash Secured Puts 106: Advanced Selling (Naked Puts)

Ready to graduate? We discuss "Naked Puts" - selling on margin. Learn the Regulation T rules, leverage risks, and how to boost ROIC without blowing up.

Feb 18, 202612 min read

Cash Secured vs. Naked

Cash Secured: You have 100% of the cash ($10,000 for a $100 stock). Safe, no leverage.

Naked (Margin): You only put up a fraction of the value as collateral (e.g., $2,000). Leveraged, higher risk, higher ROC.

Note: "Naked" sounds scary, but if you have the cash elsewhere (e.g., in T-Bills), it is just capital efficient.

Regulation T Margin Rule

How much margin do you need? The Fed has a formula:

Requirement = 20% of Stock Price + Put Premium - OTM Amount.

Example: Stock $100. Sell $90 Put for $1.00.

20% of $100 = $20.

Premium = $1.

OTM Amount = $10 ($100 - $90).

Margin = $20 + $1 - $10 = $11 per share ($1,100 total).

Compare $1,100 margin vs $9,000 cash secured. That is 8x leverage.

Warning: Leverage cuts both ways. A small drop in stock price can wipe out your margin equity.

The Stress Test

Before selling naked, ask: "If the stock drops 20% tomorrow, will I get a Margin Call?"

Always keep 50% of your buying power free. Never max out your leverage. The market can remain irrational longer than you can remain solvent.

Key takeaways

  • Naked Puts use Margin to free up capital.
  • Reg T Rule: Approx 20% collateral required.
  • Leverage boosts ROI but introduces Margin Call risk.
  • This concludes the Chapter 3 Cash Secured Put Masterclass.

Series

Cash Secured Put Masterclass

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