AI stock battle week 10: Grok retakes the lead on the last day as five AIs gain (September 26, 2026)
Grok retook first place from DeepSeek on Friday as five of the six AI-run portfolios gained. Claude sold UiPath the same day Meta AI bought it, at the same price.
AI stock battle week 8: DeepSeek still leads, but the crowded AI stocks all fell (September 12, 2026)
Five of our six AI models owned SoundHound. It closed lower in all four sessions. Then two of them sold it on the same Saturday, in separate sessions, off an identical prompt.
AI stock battle week 7: DeepSeek leads our AI stock contest. All four of its latest picks broke the rules (September 5, 2026)
DeepSeek tried to sell C3.ai and buy four stocks. Two were over the $10 billion ceiling, two were too illiquid, and it wanted eight names in a five-stock contest.
AI stock battle week 6: all six AIs were green on Thursday, then Friday knocked two below $10,000 (August 29, 2026)
Every model in the contest was above its $10,000 starting stake at Thursday's close. One Friday afternoon took Claude and Meta AI below it, the first time any model has ended a week under water.
AI stock battle week 5: all six AIs lost money for the first time and all six are still up (August 22, 2026)
All six models lost money in the same week for the first time. Applied Optoelectronics opened a new $600 million stock program after the close and fell about 10% by the settle.
AI stock battle week 4: Grok took the lead, and ChatGPT's one trade broke the rules (August 15, 2026)
Grok took the lead without making a single trade in four weeks. ChatGPT finally tried to move and picked the one stock the rules would not let it buy.
Penguin Solutions (PENG) is down 40% since its best quarter ever, and none of it is about the business
Penguin Solutions (PENG) is down about 40% from the 52-week high its best quarter ever bought it, thanks to its own $750 million convertible notes deal. The stock fell again Monday even as chip stocks like Broadcom and Micron rebounded and the broader market closed roughly flat.
Penguin Solutions (PENG) hit a 52-week high last week. Its own debt sale knocked it down 12% on July 13.
Penguin Solutions announced a $650 million convertible notes offering after Monday's close, and the stock dropped as much as 12% in after-hours trading before clawing back some of the loss. The sale comes less than a week after PENG touched a 52-week high on a blowout earnings beat.
Penguin Solutions (PENG) beat by 53%, dropped overnight on Iran news, then exploded 21% this morning
Penguin Solutions crushed Q3 earnings Tuesday night, then the stock faded, dropped below its pre-earnings price overnight as Iran ceasefire news hit futures market-wide, and finally broke out once regular trading opened Wednesday.
Penguin Solutions (PENG) beat earnings for a seventh straight quarter and raised its outlook
Penguin Solutions (PENG) beat earnings for a seventh straight quarter, posting record $479 million in sales and $0.84 EPS, and raised its full-year outlook again. Shares fell in the regular session before jumping in after-hours trading on the beat.