Tesla Motors Inc (NASDAQ:TSLA) shares are up 1 percent and holding fast, an indication that while investors are certainly interested in what CEO Elon Musk has to say next week, they aren’t ready to buy the farm just yet.

The company’s stock did jump 2.5 percent on Monday right after the announcement about the big announcement.

Elon Musk

Musk tweeted on Monday that Tesla Motors Inc (NASDAQ:TSLA) has a “really exciting” announcement on Thursday.  “Am going to put my money where my mouth is in a major way,” he tweeted. A few hours after that tweet he said there was a “slight change of date to ensure no end of quarter distractions.” They pushed the “really exciting” announcement back to next week Tuesday.

The last bit of press Tesla Motors Inc (NASDAQ:TSLA) got was in connection with a nasty review of the Model S which was published in The New York Times. The automaker released the vehicle logs from the reporter’s trip to show that things likely didn’t go as he reported.

So what will the big announcement be? It may end up being the best-kept secret in the financial world—at least up until now. At this point there isn’t any indication of what it even could be, but that doesn’t mean reporters won’t be digging deep and pressing sources to find out what it will be.

Bloomberg Businessweek contacted Tesla Motors Inc (NASDAQ:TSLA) spokesperson Shanna Hendriks, who said that they are “still working out the details of the announcement.” She also said that Tesla won’t be having a presence at the New York auto show this week.