OpenAI's Partner Stock Plunges Pre-market, AMD Drops by 6%

April 28 — U.S. President Donald Trump tweeted: “Iran just issued a major threat. They’ve announced they see the Houthis have faded from the scene and are trying to change their leadership approach (I believe they can do it!)”

On April 28, the United Arab Emirates (UAE) announced it will withdraw from OPEC and OPEC+ starting May 1. Nordea Bank analyst Jan von Gerich noted the UAE’s goal to boost oil production, which would weigh on oil prices. He also said OPEC won’t be able to control prices like it once did once the Iran conflict is resolved. Abu Dhabi Commercial Bank Chief Economist Monica Malik said this paves the way for the UAE to grab global market share once geopolitical tensions ease. She added the move would benefit consumers and the broader global economy. (Source: FXStreet)

April 28th – Per Bitget data, U.S. stock markets opened with the Dow Jones Industrial Average (Dow) up 0.22%, the S&P 500 down 0.52%, and the Nasdaq Composite falling 1.18%. Reports indicate OpenAI has failed to meet its revenue and user targets, pressuring related tech and semiconductor stocks: NVIDIA is down 3.5%, AMD 6%, the iShares Semiconductor ETF 4%, and Oracle 5.9%.

On April 28, Tether announced the launch of a next-gen modular Bitcoin mining infrastructure—one that boosts energy efficiency, cost control, and scalability via a proprietary high-density computing system. Developed in partnership with Canaan Inc. and ACME Swisstech and built around application-specific hashboard modules, the solution decouples computing, power supply, and chassis design to enable component-level optimization and flexible upgrades. Unlike traditional all-in-one mining rigs, this design supports on-demand scaling, component swaps, and improved thermal management efficiency. Tether noted the new system—paired with immersion cooling—cuts energy use and operational costs while boosting system uptime. The architecture also enables real-time dynamic performance adjustments to fit diverse mining farm needs. This upgrade builds on Tether’s previously open-sourced Mining OS (MOS) and Mining SDK, marking its shift from software control to hardware design—strengthening

On April 28, Coinbase will list Pharos (PROS) for spot trading. Should liquidity conditions be met and trading support be in place, the PROS-USD trading pair will go live later today.

On April 28, U.S. Commodity Futures Trading Commission (CFTC) Chair Mike Selig announced that the agency—having cut more than one-fifth of its staff—is turning to artificial intelligence (AI) to offset the manpower shortage. The shift comes amid former President Trump’s push to reduce the federal workforce, with Selig noting AI and automation can help fill the staffing gap. As a leading U.S. regulator in the crypto space, the CFTC is advancing AI and related technology to review registration applications and support market surveillance. Selig pointed out the CFTC’s registration process still relies on manual document submissions, so “we’re building an automated system to make it far more efficient.” He added AI tools can review applications, flag issues for staff, streamline their work, speed up feedback, and reject obviously incomplete filings. “AI can spot blanks, insufficient descriptions, or clear errors in submissions—then either reject those applications or place them at th