I was a little stunned yesterday and today not to see the through-the-roof demand for the Model 3 reflected in the share price. I think there is such a deep-seated skepticism/resistance to what Tesla is trying to achieve that even getting hit over the head with a 2 x 4 is not enough to get many people's attention.
I watched the same thing happen with Apple in the late 2000's. There seemed to be major lag due to skepticism about the iPhone.
Apple's share price did well in the early to mid 2000's, driven by the success of iPod, iTunes, and the Mac line. At the same time, companies like Nokia, Motorola, and RIM were dominating the mobile phone market. As ARM processors slowly became more powerful, I began to suspect that convergence would ultimately doom the iPod, and that Apple would be forced into the mobile phone market in order to retain/grow hardware revenues and defend iTunes Store.
Many people, including myself, were skeptical that Apple could go from 0% to any significant share in mobile phones, where they had no experience. From iPhone to iPhone 3G and then 3GS, Apple's stock price really did not reflect the growing potential of the iPhone line. Granted, the economic crisis of 2008 and associated macro conditions had a severely depressing effect on AAPL independent of the company's future prospects and actual financials. Something though changed around 2009 and then 2010 with the iPhone 4. The skepticism surrounding Apple and mobile phones all but disappeared, and even the emergence of Android did little to dampen the new reality. AAPL began to rocket upwards as iPhone went from "niche for the rich" to mainstream.
Share price often lags actual accomplishment, because the herd doesn't see the direction or the destination of a company. When they finally do understand, it becomes a a buying stampede as parties are willing to pay more and more for shares.
The key is to be positioned before the stampede happens. If in 2018-2019, Model 3 is a success and the numbers become impossible to ignore, TSLA will become vastly more valuable than it is today, assuming that macro events don't cause a disruption. This is why I encourage long term investing rather than trading. I believe there is a reasonable probability that Tesla will succeed within a general time period. I just do not know precisely when it will happen.