There seems to be 2 schools of thought: They will wait for good quarterly results to announce a raise. Since Q1 ER seems to be out of play, that would be Aug for Q2 results. But that is a whole quarter later, and probably the quarter TM really want to make expansion plans. They are throwing out all sorts of signals that they are pleased with the model 3 reception and they want to alter production strategy. Even though they can get better terms later, there is some logic in doing in now since they get more time to work with the money, and the backers of the secondary can get quiet assurance that higher stock prices are in the cards... /tin foil hat off
I will throw in with the theory that it is about a capital raise.
I also bought an unwise amount of weekly calls. I think any reasonable theory about the conf call will be well received.