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Options expire this Friday, so let's take a look at the open-interest on SPY (NYSEARCA:SPY), DIA (NYSEARCA:DIA), QQQ (NASDAQ:QQQ) and IWM (NYSEARCA:IWM) to see if they hint at movement the rest of the week. Here's the theory: the market conspires to cause the most pain, to cause the most number of people to lose the most amount of money. If the market is to accomplish this, what does it need to do this week?

SPY (closed 144.08 Monday)

Puts out-number calls 2.2-to-1.0 - about the same as last month.

Call OI is highest between 144 & 152.

Put OI is highest between 130 & 145.

There's some overlap at 144/145, and otherwise the call and put OI is split pretty well. A close right there would cause the most number of total calls and puts to expire worthless. The current close was at 144.08, which is right at the lower end of the small overlap range. Hence flat trading the rest of the week would do the trick; a slight move up would be fine too.

DIA (closed 134.02 Monday)

Puts out-number calls 1.2-to-1.0 - less bearish than last month.

Call OI is highest between 134 & 139.

Put OI is at 126 & 128 and then is eerily steady between 129 & 137.

There's overlap between 134 & 137. Given that the call and put OI is nearly equal and the call OI is much greater within the overlap area than the put OI, a close in the lower half of the range would cause the most pain. The recent close was at 134.02, right at the lower end of the range. If DIA closed here on Friday, some of those put buyers would make money at the expense of nearly all the call buyers losing. Flat trading would cause lots of pain, but a slight move up would cause a little more pain.

QQQ (closed 67.17 Monday)

Puts out-number calls 1.1-to-1.0 - much less bearish than last month.

Call OI is highest between 67 and 72.

Put OI is highest at 56 and then between 62 and 70 with the biggest spike falling at 68.

There's overlap between 67 and 70, and given the spikes, I'd say a close right at 68 would cause the most pain. Today's close was at 67.17, a little below my target. Flat trading would cause a lot of pain, but a slight move up would cause even more pain.

IWM (closed 82.64 Monday)

Puts out-number calls 2.3-to-1.0 - less bearish than last month.

Call OI is highest between 84 and 88.

Put OI is highest between 70 and 85 with spikes coming at 78, 82 and 85.

There's overlap near 84/85, and given the big put OI spike at 85 a close near there will cause the most pain. Today's close was at 82.64, well below the ideal price. Flat trading the rest of the week would enable some put buyers to cash in. A <B>move up</B> is needed to achieve max pain.

Overall Conclusion: The bears once again bet on a big drop, but they weren't as aggressive as last month. The market is positioned right now to cause lots of pain among call and put buyers. A slight move up will cause even more pain.

Disclosure: I have no positions in any stocks mentioned, and no plans to initiate any positions within the next 72 hours. I wrote this article myself, and it expresses my own opinions. I am not receiving compensation for it. I have no business relationship with any company whose stock is mentioned in this article.

Source: Using Put/Call Open Interest To Predict The Rest Of The Week