Cathie Wood's weekly recap: loads Rocket Lab, Block; cuts Palantir, Tempus AI (ARKK:BATS)

Tempus AI Inc. (NASDAQ: TEM) shares rose 14.38% on September 17, 2026, driven by strong Q2 2026 results. Revenue grew 22% YoY to $382.5M, with net income and EBITDA turning positive at $5.6M and $45M, respectively. Gross margin is 73.5%. The company plans to acquire Personalis, funded by $816M in cash and investments, despite $1.36B in long-term debt. TEM's stock has surged from $62 to $80, attracting momentum traders.

Tempus AI (TEM) shares surged 29.98% this week after Morgan Stanley highlighted new reimbursement-driven revenue growth. CEO Eric Lefkofsky estimated xT pricing could add $80M-$100M in 2025, and xF approval $250M-$300M annually. Q2 revenue was $382.49M, up 21.6% YoY, with full-year guidance raised to $1.595B-$1.605B. Analysts revised FY2027 EPS estimates positively, with a consensus revenue estimate of $1.97B.

Michael Burry, known for predicting the 2008 financial crisis, held put options worth $1.1 billion against Nvidia (NVDA) and Palantir (PLTR) before closing his hedge fund. He disclosed 50,000 put options on Palantir with a notional value of $912 million and 10,000 puts on Nvidia with a notional value of $186,580. Burry has since sold his December-expiring puts but maintains short positions in both stocks and Palantir puts expiring in 2027. He believes Palantir is overvalued and Nvidia faces risk

Palantir (PLTR) maintains a strong buy rating, with recent contract wins like a $127M U.S. Army award and partnerships with Rackspace, PwC, and Nebius. Analysts expect 2027 revenue to approach $13B, potentially reducing valuation multiple and supporting upside.

The Federal Reserve raised interest rates to 3.75%-4%, the first hike in three years, with unanimous FOMC support. Most members expect one more hike this year, with no cuts until 2028. Higher rates may negatively impact housing and home improvement stocks, as mortgage applications fell 19% year-over-year. Fed Chair Kevin Warsh emphasized inflation concerns, noting it remains elevated. Some stocks, like Rocket Companies and Home Depot, may benefit if rates drop and housing activity increases.

Microsoft's CEO warned that AI users pay twice: with money and data. Palantir and Nvidia are acting on this, tightening data control measures. Palantir's stock surged 51% in August, but trades at high valuations. The company reported strong Q2 earnings and expects $8.15B in 2026 sales, per management.