US index futures and global stocks extended their Friday losses on Monday, as worries about growing geopolitical conflict in Ukraine sparked concerns about global economic growth and adding to concerns about inflation and the prospect of aggressive Fed rate hikes to tame it. Nasdaq futures were down 1.2% by 715 a.m. ET after earlier sliding as much as 1.5%. S&P 500 futures slipped 0.8%, setting up the benchmark U.S. index to fall further from a two-week low reached on Friday. Treasury yields dropped further from a multi-year high hit on Friday and gold rose, while bitcoin extended its sharp decline from Friday. Focal points Monday include comments by St. Louis Fed President James Bullard at 8:30am ET.  

Airline stocks slid in premarket trading, following European peers lower, as growing concerns about geopolitical risks over Ukraine ripple through global markets. Lockheed Martin Corp. scrapped its bid to buy Aerojet Rocketdyne Holdings Inc. after the Federal Trade Commission sued to block the deal. Here are some other notable premarket movers:

-Expensive growth stocks, which stand to suffer the most from higher interest rates, also tumbled with Apple, Nvidia, Tesla and Microsoft Corp leading the drop: Apple (AAPL US) -1.4% in premarket; Nvidia (NVDA US), -2.6%, Tesla (TSLA US) -2.3%.

-Shares in software company Splunk (SPLK US) rose 3% to $118 in U.S. premarket trading after reports that Cisco Systems held discussions about acquiring the firm, although the talks subsequently fell apart.

-U.S.-listed Chinese stocks slumped in premarket trading Monday, putting them on track to slump for a third consecutive session as geopolitical tensions over Ukraine weigh on risk-assets globally. Large-cap technology stocks are leading the decline this morning with Alibaba -1.8%, JD.com -1.5%, Pinduoduo -2.6%, NetEase -1.1% and Baidu -2.3%. Chinese EV makers are also lower with Nio -3.7%, XPeng -2.8% and Li Auto -2.8%.