The DJI is also even and INTC gets a lot of volume from the DJI ETF trades.
It also could be options market maker hedging against option trades that he will hold today. Someone bought 10,000 Friday $22 put contracts for 11 cents that cover them if INTC breaks down below $22 on earnings. The option market maker much prepare to possibly receive 1,000,000 shares of INTC at $22 on Friday if there is bad news. One way to hedge is to short some shares.
MacBook Air .... they use a DUAL core Sandy Bridge. That will be a Core i3 verson of Sandy Bridge. I BET that the Apple vendors purchased a couple of Sandy Bridge CPU in advance of this announcement.