A quick look at the chart:
I do know the broader market does not need a complete fail from Apple. it is still the largest market cap in world meaning the cap-weighted S&P 500 and Nasdaq 100 in particular are sensitive because math. And in the DJIA and Nasdaq because price-weighting and psychology respectively.
Here are the top 10 names in the hundo (11 symbols) as of the close on July 27:
Components of the Nasdaq 100
|8||Cisco Systems Inc||CSCO||2.378|
And here are the last two weeks of the 100
Netflix and Facebook got hammered, GOOG and Amazon had stellar reports but traded down and Microsoft was boring but is also down 5% since reporting. Back to Apple, it's out of our wheelhouse but a couple percent beat would be positive. Maybe announce a takeover of the Federal Reserve or a mid-size country if guidance looks weak.
Here's the earnings surprise history over the last year, via Nasdaq, you can see what excited the gap up:
Quarterly Earnings Surprise History
Apple-ologists will be listening intently for comments on the next phone, parsing every umm and ah.
We'll see what they've got to say on Wednesday. The stock, as the saying goes, is widely covered.