Tesla boss Elon Musk gave Etsy a boost on Tuesday by tweeting his affection for the e-commerce site after buying a Looney Tunes-inspired hat for his dog. The company's stock then rose 9% in premarket trading, as previously reported by CNBC.
"I kinda love Etsy," he wrote. "Bought a hand knit wool Marvin the Martian helm for my dog."
Etsy seemed grateful for the boost, replying with a link to some retro-style Mars posters -- a nod to Musk's.
"@elonmusk we love you to Mars and back," the company wrote.
It isn't the first time Musk's tweets have swayed the market. Earlier this month, he recommended that his followers use. That led to a massive surge in people downloading the app and caused shares in unrelated (but similarly named) biotechnology company Signal Advance to soar.
Last year, he alsothat Tesla's stock price was "too high," and the price dropped by 10%.