Tesla (TSLA) - Get Report bulls wish the stock was at Elon Musk's favorite dollar amount: $420.

Shares of the electric car maker have tanked 6.2% on the week to $299 following Elon Musk's scrapped efforts to take Tesla private at $420 a share. The stock has dropped below the 50, 100 and 200-day moving averages as investors grow more concerned about Musk's mindset and the business outlook. 

Further, Musk's misstep on getting a deal done has opened up Tesla to shareholder lawsuits and a Securities and Exchange Commission investigation at a time when cash and executive attention spans are tapped.

"It has become clear to us that funding was not secured or there was not sufficient interest to take the company private at $420/share. And we think credibility has taken a hit," said frequent Musk critic Joseph Spak at RBC Capital Markets. "We see potential ramifications from an SEC investigation and shareholder lawsuits. Though these are admittedly unquantifiable, they would be an incremental call on cash for a company with a weak balance sheet."