The stock market sees a big recovery rally on Tuesday, with the major indexes recouping some losses after three consecutive sessions of declines. 
$Nasdaq Composite Index(.IXIC.US)$ fared best out of the major indexes, closing up 2.4%. 
$S&P 500 Index(.SPX.US)$ also fared well, notching a gain of 1.8%. It managed to close above the key 50-day moving average. 
$Dow Jones Industrial Average(.DJI.US)$ lagged the other major indexes, but still managed to close up more than 550 points as it rose 1.6%.
Indeed it's good news for most of the investors. But why was the market keep running up and down in recent days? 
Is there any important news that is responsible for the upward trend?
Or the most significant threat has been eliminated?
Would you comment and tell mooers about your thoughts？
Source:
Dow Jones Surges 560 Points; Biden Hints At Manchin Deal; Airbnb, Travel Stocks Jump

The stock market seemed to be moving back into rally mode following Friday's pullback amid the emergence of the Omicron variant of Covid-19. 
When investors are considering whether they should sell all of their position to avoid a huge correction, suddenly, the major indices just went all the way up and close to their all-time high. 
After the stock market opened Monday, the $Dow Jones Industrial Average(.DJI.US)$ rallied 0.35%, while the $S&P 500 Index(.SPX.US)$ moved up 1%. The tech-heavy $Nasdaq Composite Index(.IXIC.US)$ climbed 1.6%.
$Apple(AAPL.US)$ traded up over 2% in Monday's morning action, while $Microsoft(MSFT.US)$ moved up 1.9% , $Tesla(TSLA.US)$ rallied over 5%. $Rivian Automotive(RIVN.US)$ rose about 3.5%, while $Lucid Group(LCID.US)$ gained 1.8%. Chinese EV leader $Li Auto(LI.US)$ bolted higher after delivering earnings, while $XPeng(XPEV.US)$ raced over 4% higher.
So the dip was like a prank. It hurt investors' feeling and soon vanished in the air without any clue.
 
Source:
Dow Jones Rallies After Stock Market Rout; Vaccine Maker Moderna, Tesla Rival Surge

By Danilo
Hey, mooers! Here are things you need to know before the opening bell:
- Stock futures tumbled in early Tuesday trading, reversing from a rebound on Wall Street as investors reassessed risks associated with the new omicron Covid variant.
- The social-media company Twitter said CTO Parag Agrawal would take the reins effective immediately.
Market Snapshot
Stock futures tumbled in early Tuesday trading, reversing from a rebound on Wall Street as investors reassessed risks associated with the new omicron Covid variant.
Futures on the $Dow Jones Industrial Average(.DJI.US)$ dropped 422 points. $S&P 500 Index(.SPX.US)$ futures tumbled 0.96% and $NASDAQ 100 Index(.NDX.US)$ futures also slid into negative territory.
Market Temperature
Read more: Market Temperature (11/30)
Top News
Stock futures slide as Moderna CEO cautions on Omicron
U.S. stock futures have tumbled anew after Moderna's chief executive officer Stéphane Bancel predicted that current vaccines would be less effective against the new omicron variant of Covid.
Cyber Monday sales flat as smaller savings curb incentive to spend
Shoppers spent $7.1 billion online as of 9 p.m. eastern time in the U.S., according to transaction data compiled by the Adobe Digital Economy Index.
SEC issues new guidance on measuring cost of 'spring-loaded' awards
The practice of granting stock awards shortly before announcing market-moving news merits 'particular scrutiny' from executives, the regulator said.
CDC says everyone 18 and older should get covid-19 booster
The agency strengthened its recommendation as a result of the risk posed by the Omicron variant recently discovered.
FTC asks Amazon, Walmart for information on supply-chain issues
The Federal Trade Commission said that it is conducting a study on supply-chain problems and shortages, as part of a study into whether the problems have led to anticompetitive behavior and higher prices. $Amazon(AMZN.US)$ $Walmart(WMT.US)$
Lululemon hits back at Peloton, sues over allegedly copied designs
The athletic-apparel maker $Lululemon Athletica(LULU.US)$ says new $Peloton Interactive(PTON.US)$ items are knockoffs, after Peloton last week asked a court to declare it didn't infringe on designs.
Jack Dorsey steps down as CEO of Twitter
The social-media company said Chief Technology Officer Parag Agrawal would take the reins effective immediately. $Twitter (Delisted)(TWTR.US)$
Read More
Elon Musk replies to tweet on SpaceX staying private after "avenge the dinosaur"
Will Santa bring good luck this year?
Omicron may drive megacap tech stocks even higher
Bill Ackman: The Covid omicron variant could end up being bullish for market
Palantir to the moon? Or sinking like a rock?
Key Events This Week
Source: CNBC, Dow Jones Newswires, Bloomberg