Ah, ok, but in my (admittedly limited) experience, the trans are important, regardless of arbitrage activity (or lack thereof). i've learned to take notice when they're lagging like this
[edit: closing that long for a tick]
it's a big stock, dominates the naz, institutional favorite...when aapl's going one way and the market's going another, i like to ask why. but the answer isn't always relevant...