Robinhood Markets Inc. jumped a whopping 82% on Wednesday after a wave of individual investors joined the likes of Cathie Wood to pile on the zero-fee trading platform.
The stock traded as high as $85 earlier in New York before cutting gains roughly in half as the volatility triggered at least three trading halts.
The frenzied share buying pushed the company's market value to a peak of $65 billion from $29.1 billion after its debut on Nasdaq last week.
'We've seen this movie before and this pump and dump of Robinhood will not end well for many traders," said Ed Moya, senior market analyst at Oanda Corp. "Robinhood's revenue streams will come into question once the government applies rules to payment of order flow."
Retail investors' participation took off in the past couple of sessions after a lukewarm reception. They bought a net $19.4 million worth of Robinhood shares on Tuesday to make it the sixth-most-purchased stock and 11th-most-traded security on retail platforms, according to data compiled by Vanda Securities Pte.
Total retail volume on Tuesday surged about 10-fold from the previous day, the data show. In the first three hours of Wednesday's session more than 100 million shares changed hands, more than five-times what was seen in recent days.
Trader chatrooms, such as those on StockTwits, and Twitter feeds were aflame with mentions of Robinhood's surge. Users compared the surge to the massive rallies staged by so-called meme stocks like GameStop Corp. and AMC Entertainment Holdings Inc. earlier this year.
The stock was the most traded company on Fidelity's platform with more than 20,000 buy orders coming from customers. That's more than double the number of buy orders seen for AMC Entertainment which saw the second largest number of buys.
The retail investors trading boost came alongside Ark Investment Management's move to increase stake in the company.