This article outlines research on stock price clustering on option expiration dates:
The following 4 x major findings were noted:
1) Stock price clustering cannot be attributed to chance.
2) Stock price clustering generally appears almost immediately in these stocks' trading patterns on expiration days.
3) Stock price clustering could be caused by straightforward hedging transactions often undertaken by market makers on options exchanges.
4) Firm proprietary traders (which includes employees of large investment banks who are trading options for those banks' accounts) are in a position to manipulate stock prices by selling large numbers of shares whose prices they wanted to keep from rising and by buying other shares whose prices they wanted to support.
I ask you good people the following question -
What information on the monthly option pricing table for a particular stock (with multiple contracts expiring for that month) can be interpreted to determine which option strike price will most likely be matched?