-- US stock futures fell Friday, with the Wall Street indices on course for a losing week as the post-election rally starts to fizzle out.

Here are some of the biggest premarket US stock movers today:

• Apple (NASDAQ: AAPL ) stock fell 0.7% after Berkshire Hathaway (NYSE: BRKa ) sold about a quarter of its stake in the iPhone maker, amounting to 100 million shares in the third quarter, a regulatory filing confirmed on Thursday.

• Tesla (NASDAQ: TSLA ) stock rose 0.7% after RBC Capital raised its price target on the EV manufacturer, citing growing confidence in the company's autonomous vehicle (AV) ambitions and its operational advantages over legacy automakers.

• Domino’s Pizza (NYSE: DPZ ) stock soared 7.1% and Pool Corporation (NASDAQ: POOL ) stock climbed 5.9% after Warren Buffett's company took a stake in the fast food chain as well as the swimming pool supplier in the third-quarter, according to regulatory filings.

• Alibaba (NYSE: BABA ) ADRs rose 3% after the Chinese e-commerce giant reported better-than-expected third-quarter earnings, citing an acceleration in growth in its cloud business unit.

• BioNTech (NASDAQ: BNTX ), Moderna (NASDAQ: MRNA ) and Novavax (NASDAQ: NVAX ) all fell more than 2% after President-elect Donald Trump picked Robert F. Kennedy Jr., a vaccine skeptic, to lead the Department of Health and Human Services.

• Applied Materials (NASDAQ: AMAT ) stock fell 8.2% after its quarterly earnings missed some street expectations, with slowing revenue from China a key point of contention.

• Palantir (NYSE: PLTR ) stock rose 2.7% after the analytics software provider said it is shifting its listing to the Nasdaq from the New York Stock Exchange.