Amazon saw over $5.6 billion in total online sales in the United States on the first day of its Prime promotional event, according to Adobe Digital Economy Index.
AMC's shares were up 17.3% to $31.11 in US premarket trading on Friday, while those of video game retailer GameStop were 2% higher. GameStop, which was at the heart of the so-called "stonks" retail trading mania this year, is set for its best weekly gain since mid-March, up more than 43% so far.
On trading-focused social media site Stocktwits (ST), message volume related to AMC spiked by nearly 40%, with more than 97% of messages reflecting positive sentiment towards the stock.
Investors are keen to see the influence of activist investor Ryan Cohen, a co-founder of online pet products shop Chewy who joined the board earlier this year.
The company's stock was indicated to open between $60 and $65 per share, far above the reference price of $45 set by the New York Stock Exchange on Tuesday.
At the top end of the indicative range, Roblox would have a market value of around $36 billion.
GameStop rose more than 1,000% during two weeks as retail traders using the Reddit platform encouraged each other to pile in, socking it to hedge fund managers who were short the stock - a bet GameStop would fall.
Reddit was valued at $3 billion in its last round in February 2019, and the surge in its value follows a 90% jump in advertising revenue from a year ago.
We decided that now was the right opportunity to make strategic investments in Reddit including video, advertising, consumer products, and expanding into international markets.
“We have raised more than $250 million in Series E funding from existing and new investors. We decided that now was the right opportunity to make strategic investments in Reddit including video, advertising, consumer products, and expanding into international markets,” the company announced in a blog post.
AMC shares dropped 10.54pc at $6.11 after hitting a session low of $5.75, its lowest level since January 26. Koss shares lost 5.66pc to trade at $18.85.
A well-known supporter of bitcoin, Chief Executive Officer Elon Musk has been weighing in regularly over the past week to a frenzy in retail investment.
I think we will see an acceleration of companies looking to allocate to Bitcoin now that Tesla has made the first move.
The videogame retailer, the initial trigger for the market slugfest after gaining popularity on social media platform Reddit’s WallStreetBets, closed up 19.20% at $63.77 after hitting a session high of $95, although the wild gyrations seen in the past two weeks appeared to be easing.