The ongoing Bitcoin crash has claimed a major casualty: BlackRock (NYSE: BLK). Yes, the world's largest asset manager recently suffered its worst-ever rout when its spot Bitcoin exchange-traded fund (ETF) saw the largest sell-off in a single day.

The U.S. stock market is rising ahead of a huge couple of tests for Wall Street. The S&P 500 added 0.4% Wednesday after trimming an earlier jump of 1.1%.

Stock barometers may be calmer early Wednesday, but signs of residual tension can bee seen in option markets. The Cboe Volatility index (VIX), an option-derived measure of expected movement in the S&P 500 that's known as Wall Street's fear gauge,

Warnings about Wall Street's excessive optimism, concentration risk, and frothy valuations have fallen on deaf ears for most of this year, leaving market-watchers wondering what, if anything, will cool the tech and artificial intelligence frenzy.

Wall Street finished Tuesday's trading session to the downside on a day that watched the Nasdaq Composite plunge as much as 2%.

Nvidia reported quarterly results that handily topped Wall Street expectations, sending the stock sharply higher in after-hours trading.

After mounting scrutiny of stratospheric tech investments, as well as a blackout of federal data during the longest government shutdown in U.S. history, Wall Street awaits two reports that stand to reshape its outlook for the months ahead.

Futures are trading higher this morning, as all the major indices once again closed lower on Tuesday, marking the fourth straight day of losses. The Dow Jones Industrials closed down 1.07% at 46,091,