In this article we will examine a specific case of a debit and a credit spread in order to point out that there is virtually very little difference between the two.

Instead of attempting to explain the concept by using a fictitious example, the stock XYZ with the one strike price being at this level and the other one at that level, etc, we shall utilize a couple of my recent trades for the same purpose. Again, this scrutiny is for education purposes only and it is not intended to be a recommendation of any kind.

My normal criteria for trading optionable stocks is the liquidity which is evident in the volume of the underlying as well as the high open interest and volume on individual strike prices. The Chevron Corporation has passed those minimum requirements. After knowing WHAT to trade, the issue becomes WHEN to trade it. Figure 1 shows that on 12-04-2008, the CVX was trading slightly above 70 which in the past had acted as a short-term diagonal support.

The Bull Call Explanation
By choosing a Bull Call instead of a directional (non-spread) straight call, I have reduced two things; my exposure and my financial outlay. However, let us get to the particulars. Had I just purchased a call, I would have paid for December 65 call 9.52 which would be for one contract \$952.00 plus the commission.

Instead I simultaneously bought Dec 65c @ 9.52 and sold December 70 call for 5.82 which in turn reduced my entry price to 3.70 or \$370.00 per contract plus the two entry commissions.

As Figure 2 shows, I did this transaction twice and got even a better fill of 3.65 on the second transaction. Let us combine these two Bull Calls:
I have bought to open (BTO) +2 Dec 65c @ 9.45 (average fill) and sold to open (STO) -2 Dec 70c @ 5.775 (average fill). My maximum loss was the difference between the premium, which is a debit of 3.675 or \$367.50 times two contracts. My maximum profit is the width of spread (strike price 70 minus 65 strike) subtracted from the debit. Specifically, 5.00 ? 3.675 = 1.325; therefore, the most I could have made on this trade would have been \$132.50 times two contracts. From this amount the two exiting commissions need to be subtracted. To calculate the ROI (Return on Investment) we need to divide our Max profit of 1.325 with our debit of 3.675 which gives us 36% as our ROI for the Bull Call spread.

The Bull Put Explanation
Having explained the debit part of the trade we could turn our attention to the credit part of it. Figure 3 shows an additional trade which is in red because it was a sold for the credit.

On the Bull Put, I had BTO + 1 Dec 65 put @ 1.52 and simultaneously STO ? 1 Dec 70 put @ 2.87 receiving the credit in the difference of those two premiums (2.87 ? 1.52 = 1.35) which is 135.00 for one contract. Once again the spread’s width of 5.00 ? 1.35 (our max profit) would give us 3.65 as our max loss. The ROI is 1.35 (max profit) divided by 3.65 (max loss) which comes to 37%. In short, the ROI on Bull Put is only one percent better than Bull Call’s ROI of 36%.

A brief note, the max profit of 1.325 per contract on the first vertical (Bull Call) and the max profit of 1.35 on the second vertical (Bull Put) are just "that" – the MAX profit. The max profits are occasionally achieved if the trader holds the position until the expiry. In my case, the chart determined my exit.

Figure 4 shows that on 12-08-2008 the CVX had approached the 80.00 area which in the past has acted as a support. On that day the old support had acted as a new resistance. Observe on the chart that the CVX has traveled almost 10 points within four short trading sessions. Both of my vertical trades were bullish trades and the chart was telling me that it was unable to break the resistance, so on the next day 12-09-2008, I closed both of my verticals.

Josip Causic

Josip Causic is an Options Instructor for Online Trading Academy. Early on in his trading career he realized that market psychology is a major part of trading so he invested heavily in workshops. At first his trading style revolved around the CANSLIM method. Later on after his encounter with former market makers, he merged his retail trading experience with the methods used by floor traders.

Josip Causic is an Options Instructor for Online Trading Academy. Early on in his trading career he realized that market psychology is a major part of...

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