The primary reason is that the probability of an option being out of the money on expiration day (Prob OTM in the graphic above) is 58% in this example.

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An example of this would be in looking at the above chain on the Aug. 20 strike.

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For example, the video is available on iPhones and iPod touches with iOS 5.0 and above, and on Android devices with OS 2.2 and above.

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