Cerebras Systems has launched its next-generation CS-4 AI accelerator, saying it can support models exceeding 50 trillion parameters and cut wafer-to-wafer latency to as little as two microseconds. The company reported second-quarter revenue of $180.1 million and a market capitalization of about $49.1 billion. CBRS began trading on May 14, 2026 after pricing its IPO at $185, and the stock closed its first session at $311.07, up 68.2% from the offering price.

Soros Fund Management opened a new position in Nebius in the second quarter, ending the period with 310,000 Class A shares valued at about $85.6 million. NBIS jumped nearly 9% on Aug. 14 after the stake became public, marking its best five-day performance. Nebius also reported Q2 revenue of $582.3 million, up 454% year over year and above analysts’ estimates, driven by demand for AI computing capacity. The company plans $20 billion to $25 billion in capital expenditures this year to expand its AI infrastructure, and NBIS was $223.90 as of Aug. 19, up 164% year to date.

Duolingo said at an Aug. 18 investor meeting that daily active users grew 27.4% year over year, helping push its shares up 4.6% that day. In fiscal 2026 Q2, adjusted EPS was $0.66, topping the $0.61 consensus estimate on cost discipline and lower costs tied to integrating generative AI. The platform reported 58.7 million daily active users and 12.7 million paid subscribers, while the stock is down 56.84% over the past year and 16.7% so far in 2026.

Hedge fund manager David Einhorn’s DME Capital Management bought about 1.42 million PayPal shares in the second quarter, valued at $61.5 million. PayPal reported Q2 adjusted EPS of $1.38, about 8% above expectations. The stock has rebounded recently, leaving it valued at roughly 11.7 times earnings. That multiple sits below the financial services sector median.

Oracle reported fiscal fourth-quarter results for the period ending in May, with revenue up 21% year over year to $19.2 billion and adjusted earnings per share rising 24% to $2.11. Driven by AI demand, total cloud revenue climbed 47% to $9.9 billion, while remaining performance obligations surged 363% to $638 billion. Separately, Tudor Investment Corp. initiated a position in ORCL in the second quarter, buying 1.3 million shares.

SK hynix’s board has approved a ₩40 trillion (about $28.69 billion) share buyback and said it will permanently cancel all shares repurchased once the program is completed. Based on the previous day’s closing price, the plan could cover about 24.07 million shares, or 3.3% of the company’s total shares outstanding. The buyback is set to run for three months, and the company’s market capitalization is about $1.14 trillion.

Whale Rock reduced its Nvidia holding in the second quarter, cutting the position from about 1.04 million shares to 377,204 shares, a decline of roughly 64%, according to its latest 13F filing. Over the same period, the hedge fund raised its Advanced Micro Devices stake from 69,211 shares to roughly 1.51 million shares. Nvidia’s market capitalization is about $5.24 trillion and the stock trades near $215, about 10% below its 52-week high.

Brazil’s coffee harvest is accelerating, with Cooxupe reporting 81.1% completed as of Aug 14, up 7 points from the prior week. Safras & Mercado said the Brazil 2026/27 harvest was 90% complete as of August 12, still behind last year and the five-year average. Arabica harvesting was 86%, below 95% a year earlier. ICE arabica and robusta coffee futures both settled lower on Friday.

Four top AI researchers left Alphabet’s Google, and the stock closed down 4.03% at $362.43, wiping about $186 billion off its market value on above-average trading volume. The decline outpaced the broader market, with the Nasdaq Composite down 0.8%, the S&P 500 off 0.2%, and the Dow ending at a record. CEO Sundar Pichai said Google will still act as a “founding investor” in the effort.