AstraZeneca Potential Merger; Nvidia and Intel; SpaceX Reports Soon

Today's biggest winners and losers in the stock market.

On this episode of Stock Movers:

- AstraZeneca (AZN) shares are lower on news the company has explored an acquisition of Bristol-Myers Squibb Co., according to people familiar with the matter, in a potential megadeal that would rank as the largest ever in pharma. 

- Nvidia (NVDA) shares, which have been mostly flat the past month, and Intel (INTC), which is slightly lower this morning as the market prices in chip volatility. The Philadelphia Stock Exchange Semiconductor Index plunged 21% in July for its worst month since October 2008, with nearly half the trading days having closes up or down by at least 4%. Much of the volatility is a result of greater scrutiny being placed on big-tech capital expenditure plans

- SpaceX (SPCX) shares are moving as investors in the company prepare for its first earnings report as a public company.

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