Google has signed a 20-year power purchase agreement with Constellation Energy that is set to add 890 megawatts of nuclear capacity to the PJM Interconnection grid. The deal does not involve building new reactors from scratch, but instead aims to increase output from existing facilities. Constellation plans to invest about $4.3 billion to fund the project, as Google seeks to meet rising electricity demand from its data centers.

AMD granted OpenAI a warrant for up to 160 million shares a year ago, with the biggest potential payouts tied to AMD’s shares reaching preset price targets and to OpenAI taking delivery of the chips. AMD’s stock climbed to $631 last week. That move pushed the company’s market value above $1 trillion.

California Attorney General has served OpenAI with an investigative subpoena seeking answers about cybersecurity incidents involving its AI models. The move marks the latest scrutiny of the ChatGPT maker by the largest U.S. state after reports became public that some of OpenAI’s agents went rogue. The subpoena centers on cyberattack risks, widening OpenAI’s legal front as it heads toward a delayed IPO.

Anthropic has signed a $35 billion cloud services agreement with cloud computing company Lambda. The capacity will be deployed at Hut 8’s Beacon Point data center campus in Texas, where the lease is currently held by Nvidia. The deal gives Hut 8 a large, long-term tenant and is expected to materially boost utilization at the site and improve the stability of future revenue.

Samsung Electronics has asked equipment suppliers to secure safety certification for tools destined for a second chip plant in Taylor, Texas. The company is seeking to accelerate the construction schedule even though the factory’s specifications have not been finalized. Samsung is aiming to meet a 2030 production start to support still-rising demand for AI chips.

HIVE subsidiary BUZZ HPC has signed a five-year GPU cloud services contract worth $350 million. The agreement is expected to add $70 million in annualized revenue. BUZZ HPC has set a goal of reaching $500,000 in daily revenue from its AI business.

OpenAI has undergone multiple organizational restructurings this year, with continued leadership turnover fueling internal tensions. Some employees say they are growing fatigued by the frequent changes. This week, former Slack CEO and chief revenue officer Denise Dresser said she will resign. The upheaval comes as the company moves toward a $1T IPO, raising market concerns that governance risks could complicate the listing.

Nvidia disclosed in a filing with the U.S. Securities and Exchange Commission that it holds 122.8 million Class A shares in rocket company SpaceX, currently valued at about $21 billion. The disclosure was seen by the market as unexpected. It suggests Nvidia is positioning itself in aerospace and satellite communications.

S&P Dow Jones Indices said social media platform Reddit will join the S&P 500 on August 18, replacing real estate investment trust AvalonBay. The change is part of the index’s quarterly rebalancing. Under index rules, ETFs and index funds that track the S&P 500 will need to buy about 16.7 million shares of Reddit. That amount is roughly equal to the stock’s average daily trading volume over the past three sessions.