(Bloomberg) — The social-media mob scored another direct hit, this time with a little-known software company that Wall Street started betting against.

Support.com Inc. shares skyrocketed on Friday, adding to this week’s triple-digit rally as day traders touted the Los Angeles software company, whose platform helps companies manage technical and customer support.

The shares surged as much as 118%, climbing to the highest since 2004. Support.com was among the most mentioned companies in Stocktwits over the previous day and trading volume on Friday was more than 400% the three-month average.

Retail traders began taking note of Support.com last month, after short bets piled up against the company, and interest in the stock appeared to have reignited earlier this week. Support.com has gained each session this week, soaring more than 300%. The rally has added more than $600 million to the company’s market value, which is now over $850 million.

Read more: Meme Stocks Post Best Day Since June as GameStop, AMC Surge

Earlier this week, data compiled by Vanda Research showed that Support.com was among the most highly shorted stocks to have seen a recent acceleration in buying by retail — as opposed to professional — investors. Support.com’s outstanding short interest accounts for about 60% of the float, a measure of the shares available for trading, according to data from S3 Partners.

“Shares shorted were climbing earlier in the month, but we have seen short covering recently as the shorts are in the middle of a big squeeze,” said Ihor Dusaniwsky of S3 Partners. Investors betting against the company have seen $95 million this year in mark-to-market losses, with Friday’s surge showing “the squeeze will continue and accelerate,” he said.

Support.com is scheduled to hold an extraordinary general meeting on Sept. 10 regarding the proposed merger with Bitcoin miner Greenidge Generation Holdings Inc.

More stories like this are available on bloomberg.com

Subscribe now to stay ahead with the most trusted business news source.

©2021 Bloomberg L.P.

(305) 707 0888