When selling our cash-secured puts, understanding the correlation between stock price and our put premiums is critical to maximizing the success of our trades. For covered call writing, the relationship is direct … if share price increases, so will the value of our call options by its Delta factor. For puts, the opposite is true … if stock value rises, put value falls, providing us with the opportunity to buy back the put option at a much lower price. This is why when we view a put option chain, the stats have negative Deltas.
What is Delta?
One of the 3 definitions of Delta is the amount an option premium will change for every $1.00 change in the price of an underlying security. If we generate $1.00 per share when selling a cash-secured put and the strike has a Delta of -.50 per share or -50 for the contract, and share price changes by $1.00, then put value is reduced (if stock price rises) or increased (if stock price falls) by $0.50.
Real-life option-chain with Chipotle Mexican Grill, Inc. (NYSE: CMG)

- 9/30/2024: CMG trading at $57.30
- 9/30/2024: The 10/18/2024 $55.0 OTM put shows a bid price of $0.70
- 9/30/2024: The $55.00 put shows a Delta of -0.2709
- For every $1.00 in share price increase, the $0.70 premium will reduce in value by $0.27
- If the share price rises enough, we can buy back the option at an extremely reduced price and sell a higher put strike to generate additional option income (rolling-up)
CMG initial put calculations using the BCI Trade Management Calculator (TMC)

- Red circle: If taken through expiration, this is a 19-day trade
- Yellow cell: The breakeven price point is $54.30
- Brown cells: The initial time value profit is 1.29%, 24.76% annualized
- Purple cell: If the put is exercised and shares are put to us, we buy those shares at a 5.24% discount from the price at trade entry (the breakeven price of $54.30-yellow cell)
What are the 20%/10% guidelines for cash-secured puts?
These are exit strategy guidelines which assist us in determining when to buy back our cash-secured puts when the share price accelerates significantly. In the first half of a monthly contract, we enter a buy-to-close (BTC), good-until-cancelled (GTC) limit order of $0.14 (20% of $0.70) after selling the CMG cash-secured put. In the last 2 weeks of a monthly contract, we change the limit order to $0.07, 10% of $0.70. This is also a BTC/GTC limit order. If we can retain 80% – 90% of our original option premium and generate more than $014 or $0.07 by rolling up to a higher put strike, we will have generated an additional income stream or perhaps more.
Discussion
When selling cash-secured puts, we can generate additional income streams by understanding the inverse relationship between share price and put value. Using the BCI 20%/10% guidelines will partially automate the exit strategy process.
Alan Ellman’s Selling Cash-Secured Puts
The purpose of this book is to give the reader the tools to master a conservative stock and option strategy with the goals of generating monthly cash flow and focusing on capital preservation. Selling cash-secured puts is a low-risk strategy that leverages high-quality stocks and exchange-traded funds to accomplish these objectives.
This book will present basic option principles that apply to this system and will walk you through the process of stock and option selection. Additionally, calculating profits and position management will also be critical topics addressed. In other words, every aspect of this strategy will be discussed including the necessary steps to take before, during and after a trade is executed. Examples of real-life trade executions will be shown in conjunction with illustrative charts and graphs, and the rationale for each step behind the trade will be explained using easy-to-understand terminology.
Click here for more information and purchase link.
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Cash-Secured Puts: 2 Outcomes
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Alan,
Please help me with this question about the collar setup.
I’m unclear about the idea of selling the short call one strike OTM and buying the long put one strike OTM.
In many of the option charts I’m viewing, there is very little difference between the credit for the call sold and debit for call purchased.
And in Alternative Strategies, you mentioned the idea to idea to setup the collar that way. But you also had examples where the spread between the short and long calls are several strikes apart. See page 53 about the GDX collar. There the call and put are 5 strikes apart.
For Example:
The 237.50 short call that is one strike OTM is $4.30, while the long put at 235 is 6.70 ( assume I would negotiate for a better price, but MARK for that put is 5.50). Since the spread would result in a debit, should I look for another stock or simply select a put that is farther OTM. The trade could make money IF the price rises to the OTM call.
Thank you,
John
John,
When we structure a collar trade, the premium must calculate to a net credit. This typically means the OTM put strike is deeper OTM than the call strike.
Let’s look at the GDX option chain as of market close yesterday (see screenshot below).
The call credit ($1.06) and the put debit ($0.65) calculate to a net credit of $0.41. This data is entered into our BCI Trade Management Calculator or BCI Collar Calculator and you will see the following results:
A 19-day return of 1.03%, 19.83% annualized. There is also an additional upside potential of 0.70% if GDX moves up to, or beyond the $40.00 call strike.
Collar calculations always are lower than traditional covered call calculations but provide an insurance policy against significant share depreciation.
CLICK ON IMAGE TO ENLARGE & USE THE BACK ARROW TO RETURN TO BLOG.
Alan
Premium Members,
This week’s Weekly Stock Screen And Watch List has been uploaded to The Blue Collar Investor Premium Member site and is available for download in the “Reports” section. Look for the report dated 02/28/25.
Be sure to check out the latest BCI Training Videos and “Ask Alan” segments. You can view them on The Blue Collar YouTube Channel. For your convenience, the link to the BCI YouTube Channel is:
https://www.youtube.com/user/BlueCollarInvestor
Barry and The Blue Collar Investor Team
Premium members:
This week’s 5-page report of top-performing ETFs, along with our sample trade of the week, has been uploaded to your premium site. The Select Sector SPDR section is now crafted to align with our streamlined (CEO) approach to covered call writing. The report also lists Top-performing ETFs with Weekly options, mid-week market tone as well as the implied volatility of all eligible candidates.
We have also included a sample trade taken from one of our BCI watchlists.
Premium member video link:
https://youtu.be/EXMO-KwZuJs
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Alan and the BCI team
Hi Alan and Barry
Hope all is well in this new year!
In your latest report(s) you mentioned that you will remain in defensive mode and your Put / Call ratio is at 0.87 which is bearish.
I am still learning a lot so please forgive my silly questions.
What exact do you mean by defensive mode?
How do you craft these trades? ITM or OTM
Call vs Put?
Also I have not used Put. How is this trade configure? Are there different strategies here as well?
Is there a video or 2 for these Qs? I will gladly try to learn from your helpful videos.
Thanks for your time
Ketan
Ketan,
In our BCI community, there is no such thing as a “silly question”. They are all important.
By “defensive” I mean selling mainly ITM covered calls and deep OTM cash-secured puts. This will afford a certain amount of protection during the current chaotic and uncertain environment.
Cash-secured puts is a valuable strategy to have in our arsenal. You can start with our free training videos (free training link on our web pages). Then, we can take it to a higher level with our put book and put video course. The Trade Management Calculator (TMC) is the best spreadsheet for both covered calls & cash-secured puts.
Here are the links:
https://thebluecollarinvestor.com/minimembership/bci-beginner-corner-cash-secured-puts/
https://thebluecollarinvestor.com/minimembership/selling-cash-secured-puts-basic-and-advanced-principles-6-part-video-series-workbook/
https://www.thebluecollarinvestor.com/alan-ellmans-selling-cash-secured-puts/
https://thebluecollarinvestor.com/minimembership/bci-trade-management-system/
Alan