Markets
Tempus AI CEO Eric Lefkofsky.
(Getty Images)

Tempus AI jumps after hit from short seller’s report

The stock is up more than 90% this year.

Matt Phillips

Shares of Tempus AI, an unprofitable vendor of cancer screening tests that also licenses data for use in drug discovery, soared on Monday, erasing much of the loss it suffered after a short seller released a searing analysis of the stock last week.

Since debuting less than a year ago, the shares have become something of a favorite of retail traders, as well as a target of short sellers. More than 20% of the company’s float is in the hands of shorts.

One of those shorts, Spruce Point Capital, released a report on Wednesday saying “investors should focus on its aggressive accounting, financial engineering, [and] related party dealings,” which knocked the stock down nearly 20%.

Tempus declined to comment on the report and said it “remained focused on delivering shareholder value, taking advantage of the enormous opportunity of bringing AI to healthcare.” The stock is up more than 90% year to date.

But the surge in Tempus shows the risks of short sellers directly confronting a favorite of often tribal retail stock traders, who can react to short sellers’ critiques of companies by rallying each other to hold the shares rather than selling on potential risks that the shorts are spotlighting.

More Markets

See all Markets
markets

Nvidia poised to snap longest run without a record close since the AI boom began

The stock price of the company responsible for the brains of the AI boom is finally showing some brawn again.

Nvidia, the world’s most valuable company, is poised to close at a record high for the first time since October 29, 2025, on Friday (if it ends above $207.04).

The AI chip trade is on fire, with the Philadelphia Semiconductor Index slated to deliver its 18th consecutive gain as Intel’s robust results and outlook juice the entire ecosystem. Hyperscalers report earnings next week, and their capex guidance can be thought of as the earnings guidance for Nvidia and other AI suppliers for the quarters to come.

This would end Nvidia’s longest stretch without a record close since the unofficial start of the AI boom (when the chip designer delivered blowout quarterly results in May 2023).

(Sorry if I jinx this!)

markets

Lilly slips after prescriptions for its weight-loss pill come in below expectations in second week

Eli Lilly fell on Friday after prescription data for its new weight-loss pill, Foundayo, showed that it’s having a significantly slower rollout than its top competitor.

The pill was prescribed about 3,700 times in its second week, according to IQVIA data cited by Deutsche Bank analysts, compared to the roughly 8,000 they were expecting. Novo Nordisk’s Wegovy pill, which came out in January, hit over 18,000 prescriptions in its second week.

The FDA approved Foundayo on April 1 and shipments began on April 9. Deutsche analysts noted that Lilly’s GLP-1 injections, which currently outsell Novo’s, also had a slower start.

Lilly fell more than 4% after the numbers were released. Novo Nordisk rose more than 5%.

markets

The chip rally is getting so intense, even Qualcomm gets to surge

If you’re a good host, even the last person who shows up to the party gets to have a good time.

On that note, beleaguered Qualcomm — the worst-performing member of the Philadelphia Semiconductor Index this year — is staging a furious rally on Friday, with the industry poised to deliver its 18th consecutive session of gains.

Intel’s earnings are buoying the semi space broadly on Friday, and Qualcomm isn’t being left out. Options activity is also elevated and tilted toward the bull side. As of 9:56 a.m. ET, more than 48,000 calls have changed hands, roughly double its full-day average for the past 20 sessions. Its put/call ratio of 0.17 is well below the 20-day average of 0.44.

The San Diego-based firm has been negative in 2026 since the seventh session of the year, and even with today’s advance, remains mired in the red year to date. The stock cratered after reporting Q1 earnings in early February because its poor Q2 guidance seemingly confirmed fears that smartphone sales would come under pressure from rising memory chip prices and limited availability. Smartphone chips are still Qualcomm’s primary business, accounting for nearly two-thirds of revenues in its most recent quarter, and memory chip sellers appear to be incentivized to meet demand from major AI customers first.

Qualcomm reports Q2 earnings next Wednesday, but that release will likely be overshadowed by the four Magnificent 7 hyperscalers releasing results after the close.

Latest Stories

Sherwood Media, LLC produces fresh and unique perspectives on topical financial news and is a fully owned subsidiary of Robinhood Markets, Inc., and any views expressed here do not necessarily reflect the views of any other Robinhood affiliate, including Robinhood Markets, Inc., Robinhood Financial LLC, Robinhood Securities, LLC, Robinhood Crypto, LLC, Robinhood Derivatives, LLC, or Robinhood Money, LLC. Futures and event contracts are offered through Robinhood Derivatives, LLC.