It has been awhile since I have published an updated options expiration chart, but thought it was worthwhile to show you.
It is interesting to see how the big drop in June held the March and April expiration price level nearly to the tick.
If you scroll back in time, you can see the comments I have made in the past about "expirations" and the logic behind the coming from "collective market memory".
The blue-lines extend forward from the expiration day so it is more clear than the red-lines I used before this year.
Tim 11:12AM EST, Friday August 16, 2013