Here are the most important news, trends and analysis that investors need to start their trading day:

• Wall Street looks lower after two-session winning streak
• Elon Musk to join Twitter's board, tweets edit-button poll
• Amazon signs rocket deal with three firms to launch internet satellites
• EU to propose ban on Russian coal imports, sources say
• Shanghai extends lockdown; BA.2 subvariant 72% of U.S. cases

1. Wall Street looks lower after two-session winning streak

U.S. stock futures dipped Tuesday after back-to-back gains on Wall Street. The Nasdaq advanced nearly 2% to start the week as Twitter's 27% surge on Elon Musk's new stake in the social network sparked a rally in tech stocks. Twitter added another 5% in Tuesday's premarket on news Musk will join Twitters' board. The stock market has entered a seasonally strong period, with April typically being one of the best months for equities. In fact, according to data from MKM Partners, the S&P 500 has averaged an increase of 2.4% in April over the last 20 years. The index has also posted an April gain in 16 of the last 17 years.

Treasury yields rose Tuesday morning and key yield spreads — the 2-year/10-year and the 5-year/30-year — remained inverted. It's a bond market phenomenon that has often preceded economic recessions. Traders were selling bonds at the shorter end of the yield curve on concerns the Federal Reserve will get more aggressive in its interest rate-tightening cycle. Bond prices move in the opposite direction of yields.

U.S. oil prices extended gains Tuesday on supply concerns as the U.S. and its European allies considered new sanctions against Moscow over allegations of war crimes by Russian troops in Ukraine. West Texas Intermediate crude added 1%, rising to more than $104 per barrel after Monday's 4% increase broke a two-session decline.

2. Elon Musk to join Twitter's board, tweets edit-button poll

Musk will join Twitter's board of directors after taking a 9.2% stake in the social media company. After he was named to the board, Musk on Tuesday teased in a tweet he would push for adjustments. Hours after revealing that stake, Musk tweeted a poll Monday night, asking users if they want an edit button. More than 73% of the nearly 2.6 million respondents clicked "yse," which was misspelled by Musk to seemingly make his point that the ability to edit posts should be added to Twitter.

Twitter CEO Parag Agrawal retweeted Musk and urged people to "vote carefully" as the consequences "will be important." The Tesla CEO's investment, which made him Twitter's largest shareholder, comes after he said he was considering building a new social media platform.

3. Amazon signs rocket deal with three firms to launch internet satellites

Amazon on Tuesday announced a major commercial rocket deal, signing on with three companies for up to 83 launches of its Project Kuiper internet satellites. One of the companies is Amazon founder Jeff Bezos' Blue Origin. Project Kuiper is Amazon's plan to build a network of 3,236 satellites in low Earth orbit, to provide high-speed internet to anywhere in the world. The FCC in 2020 authorized Amazon's system, which the company has said it will "invest more than $10 billion" to build.

4. EU to propose ban on Russian coal imports, sources say

Two EU officials, who did not want to be named due to the sensitivity of the talks, told CNBC Tuesday the European Commission will propose banning coal imports from Russia. Imposing sanctions on the Russian energy sector has been a challenge for the European Union given the high level of dependency that some countries have on Moscow. Ukrainian President Volodymyr Zelenskyy is set to address Tuesday's meeting of the U.N. Security Council as images of atrocities emerged as Russian troops pulled back from towns around Kyiv.

5. Shanghai extends lockdown; BA.2 subvariant 72% of U.S. cases

In the latest Covid developments:

• The coronavirus outbreak in China's largest city remains "extremely grim," according to the director of Shanghai's working group on epidemic control. Most of eastern Shanghai, which was supposed to reopen last Friday, remained locked down along with the western half of the city.
• The more contagious omicron BA.2 subvariant now makes up 72% of Covid infections that have undergone genetic sequencing in the U.S., according to data from the Centers for Disease Control and Prevention. BA.2 became dominant in the U.S. last week.
• Senate Republicans and Democrats reached a deal Monday on $10 billion in additional Covid funding to buy therapeutics and vaccines and maintain the nation's testing capacity if another Covid wave hits the U.S. The amount is less than half the $22.5 billion that President Joe Biden first requested.

— CNBC reporters Yun Li, Samantha Subin, Pippa Stevens, Sam Shead, Michael Sheetz, Vicky McKeever and Spencer Kimball as well as The Associated Press and Reuters contributed to this report.

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