Depends on if it's a slight miss vs huge miss. If it's slight miss, then I think it will drop maybe 15-20 the next day(due to knee jerk reaction), then slowly go back up over the next few weeks as investors realize the long term still looks good. The value investors will come in as uncertainly has been removed to some extent(a slight miss doesn't fundamentally change anything).
If it's a huge miss(say by more than 10% top and bottom), then I can see it dropping to 400 over the next few weeks. This clearly shows things aren't going well and apple needs to do something to turn things around. I would say that a huge miss highly unlikely and even the most pessimistic analyst doesn't think that will happen.
There is no excuse for a miss (anything under 13.43). If that should occur even the perma bulls like me would be shocked. In that case 400 would be a possiblity but that would probably be as low as it would go because that would put the PE at 9.
So you have a 20% downside and at least a 40% upside depending on Wednesdays report. These numbers will not be seen next week but the direction will be set.
When I say numbers I mean prices. An immediate 10% move in either direction is possible. A miss is not priced in but a small beat(less than 8-10%) will not satisfy either unless the guidance is great. I am holding because I have no faith in the naysayers(from experience) and I just can't believe Apple didn't grow earnings by at least 10% YOY. I think guidance will be upside surprise as well.
What worries me more is what will happen if the company blows the roof off earnibgs. So much negativity and bashing out there that anything less than perfect forward guidance will be used as an excuse to drag the stock down.