The reason the market flipped out after Q1 earnings wasn't just because Tesla was profitable. It was combination of several things:
1. They were profitable and by a lot more than people were expecting.
2. They delivered a lot more cars than they had guided (I think it was 4900 deliveries but they guidanced 4500)
3. They gave firm demand numbers that exceed their own expectations and everyone else's (15k+ U.S. demand for Model S annually and 30k+ worldwide)
Before this Tesla had several quarters of under-delivering. They couldn't ramp up production fast enough and only delivered 3000 cars in 2012 (vs 5000 they guided). Their revenue and profit numbers were much lower in 2012 than they had guided as well. So when Q1 earnings came out it was a huge turning point. It meant Tesla surpassed production goals, surpassed revenue goals, surpassed profit goals, and also confirmed annual U.S. and worldwide demand for the Model S to be greater than they were anticipating. Basically, it changed the entire trajectory of the company. Before it wasn't clear how much momentum Tesla would have going into Gen III (or some people were doubting the company's viability). But after Q1 it confirmed Tesla would have a ton of momentum going into Gen III and nobody's questioning their viability as a company since Q1 earnings. It was the end of the long, dark night for Tesla.
Anyway, even if Tesla doesn't announce a profit for Q2, I don't think the market will completely flip out. Tesla is at a much stronger position than several months ago. They've already given guidance of a loss. They just need to stay within their given guidance. Though I really hope they do turn a profit and we see another spike in stock price.