Nvidia shares pose warning to investors ahead of key AI conference

Nvidia shares extended their recent run of declines Wednesday, marking an 8.5% drop from the all-time high they reached last week. But the world's biggest AI-chip maker is starting to exhibit moves that could have even bigger implications for investors and the broader tech sector.

Nvidia shares have added more than $1 trillion in value this year, a staggering performance for a stock of that size, powered in part by its dominant position in perhaps the biggest investment surge since the birth of the internet.

Chief Executive Jensen Huang told investors in February that a wave of investment into artificial intelligence will "open up a whole new world of applications not possible today" while creating a market valued in the "hundreds of billions of dollars" every year. $NVIDIA(NVDA.US)$ $Advanced Micro Devices(AMD.US)$