Joby Aviations (JOBY) shares have jumped nearly 200% over the last year but saw a strong sell-off today after the company announced a new share offering. As George Tsilis points out, speculation surrounding Tesla's (TSLA) latest EV announcement didn't help Joby, either. George talks about how an abundance of optimism priced into pre-revenue stocks like Joby and peers like Archer Aviation (ACHR) make it hard to keep bullish momentum moving.