CNBC Daily Open: ‘Sell in May’ comes early?

Hello, this is Katie Foley writing to you from London, on the last trading day of April.

Markets are not waiting for the calendar to tick over to lean into the 'sell in May' adage, with crude prices surging and stocks sinking this morning.

Over the month, we've seen a fragile Iran ceasefire negotiated, and then extended - facing multiple cliff-edge moments dictated by the U.S. President's Truth Social account. We've seen the first national inflation and growth prints impacted by spiralling energy prices, and early signs of knock-on effects to corporate earnings.

Throughout it all markets have been buoyant, but is that about to end?

Nvidia just invested in the AI legal startup that's splashing Jude Law ads everywhere

Nvidia's venture arm, NVentures, has invested in Swedish AI legal tech Legora at a $5.6 billion valuation, as the chip giant continues to ramp up startup funding across the globe.

Legora on Thursday exclusively told CNBC that Nvidia had backed it as part of a $50 million extension of its Series D, which brought the total amount to $600 million following a first close in March. The extension also saw Atlassian, Adams Street Partners and Insight participate.

Investors have been piling into promising young AI companies as they bet big on the commercial potential of tech to reshape entire industries and bring big efficiency gains.

— Kai Nicol-Schwarz