update: it went up 2.35%, not exceeding its highs last week
stance: wait, need more information to determine whether it will resume the upwards trend
http://finance.yahoo.com/q/ks?s=TSLA+Key+Statistics30.87B
http://finance.yahoo.com/q/ks?s=F+Key+Statistics59.95B
Tesla's market cap is now half the size of Ford and Tesla. Tesla is expected to sell 40000 of the Model S this year while Ford usually sells something like 5 million cars a year.
Tesla is not the only company with a successful electric car with 36000 project sales for 2014 and over 70000 worldwide.
http://en.wikipedia.org/wiki/Nissan_LeafTesla would need to dominate a booming electric car market with millions of sales globally in order to justify its market capitalization. The main purpose of investing in TSLA is to ride the bubble and get out when it bursts before the inexperienced investors do, it is a highly risky strategy and you must know what you are doing.