Implied volatility (IV) can be used to establish approximate upper and lower ends of trading ranges for our covered call and put-selling trades. The BCI Expected Price Movement Calculator was designed for purpose. Delta can also be used to establish an approximate upper end of the trading range with a risk factor approximately equal to the Delta itself. For example, if we are portfolio overwriting and don’t want our shares sold, we would select strikes with low Deltas which reflect the risk of share price moving above the deep out-of-the-money (OTM) call strike. If we own a stock at $48.00 and the $55.00 call strike shows a Delta of 16, there is about a 16% chance of share price moving above the strike and making the trade susceptible to exercise.
Since our risk factor is low, our expectation is that option returns will be lower than that of traditional covered call writing.
This article will analyze how to use Delta to establish an approximate low end of a trading range when we sell a deep in-the-money (ITM) call strike, and we don’t want share price to decline below that strike.
Goal when selling deep OTM call strikes
If we are portfolio overwriting, we don’t want our shares sold. We select strikes with low Deltas, meaning a low percentage probability of the strike expiring ITM or with intrinsic value.
Goal when selling deep ITM call strikes
In this scenario, our initial time-value return will be realized as long as share value remains above that deep ITM call strike. In other words, we want the strike to expire ITM. We select strikes with high Deltas, meaning a high probability of expiring with intrinsic value. If we select a strike with a Delta of 84, our risk factor is 16%., because there is about an 84% probability of expiring ITM.
Real-life ITM call example with Cirrus Logic, Inc. (Nasdaq: CRUS)
- 8/26/2024: CRUS trading at $141.17
- 8/26/2024: The $130.00 deep ITM call strike shows a Delta of 0.8329 and a bid price of $12.50
- By definition, this represents an approximate 16% risk factor of the strike expiring OTM
CRUS call option-chain on 8/26/2024

- Blue oval: The $130.00 strike shows an approximate 83% of remaining ITM
- Red oval: Expiration date is 9/20/2024, a 26-day trade
- Brown cells: The $130.00 strike shows a bid price of $12.50
CRUS calculations on/26/2024

- Red circle: The BCI Trade Management Calculator (TMC) calculates a 26-day trade if taken through expiration
- Yellow cell: The breakeven price point is $128.67, well below the current market value of $141.17
- Brown cells: The initial 26-day time-value return is 1.02%, 14.36% annualized
- Purple cell: If share price drops below the $130.00 strike and no exit strategy action is executed, shares are purchased at a 7.91% discount from share price when the trade was initially executed
Discussion
When selling deep ITM covered calls, our goal is to avoid share price from dropping below the strike. Delta can be used to establish a reliable, approximate probability of success trade by selecting strikes with high Deltas. A critical component of this strategy is to check the bid price of these strikes to ensure they align with our pre-stated initial time-value return goal range.
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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 01/31/25.
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Barry and The Blue Collar Investor Team
I understand why one might write a slightly ITM call for downside protection, but it completely escapes me why one would write a DEEP ITM call. Could you give an example?
Bill,
We use deep ITM versus ITM when we are seeking additional protection to the downside, at the expense of lower time-value returns.
I created an example with SHOP $116.00) using the ITM $114.00 and deep ITM ($100.00) strikes. See screenshot below.
The $100.00 strike has a much lower BE price point ($97.10 versus $105.65) and much greater downside protection of the time-value profit (13.79% versus 1.72%).
Strike selection frequently depends on personal risk tolerance and overall market assessment.
CLICK ON IMAGE TO ENLARGE & USE THE BACK ARROW TO RETURN TO BLOG.
Alan
Alan,
I just started reading your book about exit strategies for calls and puts.
When using in the money call strikes, are the 20%-10% guidelines based on the entire premium or just the time value component of the premium?
Appreciate any guidance.
Brian
Brian,
The 20%/10% guidelines are based on the entire premium for ITM calls strikes.
This will give us earlier notification of significant share price decline and provide the opportunity to mitigate losses or turn losses into gains.
Alan
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