Stocks snap 3-day winning streak | Presidential debate looms | Nikola stock falls

Tuesday served as a reminder for market participants that the coronavirus pandemic is still out there.

VIEW IN BROWSER | SUBSCRIBE TUE, SEP 29, 2020 EVENING BRIEF AS OF TUE, SEP 29, 2020 • 04:24 ET DJIA 27452.66 -0.48% -131.40 S&P 500 3335.47 -0.48% -16.13 NASDAQ 11085.25 -0.29% -32.28   Most Active DOW NAME LAST CHG %CHG AAPL 114.09 -0.87 -0.76% MSFT 207.26 -2.18 -1.04% BA 163.60 -2.48 -1.49% S&P 500 NAME LAST CHG %CHG AAPL 114.09 -0.87 -0.76% GE 6.12 -0.08 -1.29% AMD 81.77 +2.29 +2.88% NASDAQ NAME LAST CHG %CHG AAPL 114.09 -0.87 -0.76% AMD 81.77 +2.29 +2.88% TSLA 419.07 -2.13 -0.51%   EDITOR'S NOTE Tuesday served as a reminder for market participants that the coronavirus pandemic is still out there.   The major averages closed lower, snapping a three-day winning streak, after New York City reported that its daily rate of positive Covid-19 tests topped 3% for the first time in months. Mayor Bill de Blasio warned the city would fine "anyone who refuses" to wear a mask when required to do so.   Airlines — which would benefit from the economy reopening — were among the worst-performing stocks on Tuesday. United and American Airlines were both down about 4%. Delta slid 2.3%. Wall Street also looked ahead to the first debate between President Donald Trump and Democratic nominee Joe Biden. Some Wall Street analysts believe the initial debate of this cycle could be more consequential for the markets than most, with a clear victory by one candidate possibly creating significant volatility.    "Everyone knows what they're going to get with Trump, for better or worse," said Peter Boockvar, chief investment officer at Bleakley Advisory Group. "The question then is what will Biden deliver. If Biden doesn't kick any balls in his own net then the market will take that as a win for him."   The News with Shepard Smith, premieres tomorrow at 7pm ET on CNBC. The nightly newscast will provide deep, non-partisan coverage and perspective on the day's most important stories Fred Imbert | CNBC Markets Reporter @foimbert TOP NEWS  Stocks fall, snap 3-day winning streak amid coronavirus concerns Pelosi, Mnuchin renew talks as Democrats release $2.2 trillion coronavirus stimulus bill Joe Biden releases 2019 tax returns ahead of presidential debate United eyes return to JFK next year after a more than 5-year absence Cramer blasts DC for failing to pass more stimulus: 'They hated each other and they blew it' Nikola shares slide after second sexual abuse allegation raises questions about GM deal The S&P 500 triggered a rare signal that could mean bigger gains ahead, Canaccord says It's a big week for public debuts. Here's how the flood could impact ETFs, per three market analysts Amazon downplayed rising injury rates at its warehouses, investigation finds New York City misses out on billions of tourism dollars as coronavirus keeps Broadway dark   TOP VIDEO Global coronavirus deaths surpass 1 million — Here's a timeline of how we got here   CNBC PRO Wells Fargo created Trump and Biden portfolios — Here's what's in them   SPECIAL REPORTS These are the 10 companies tech employees want to work for most in 2020 Here's what the latest $2.2 trillion stimulus bill from Democrats includes   Unsubscribe Manage Newsletters Terms of Service Join the CNBC Panel Digital Products Feedback Privacy Policy   © 2020 CNBC LLC. All rights reserved. A property of NBCUniversal. 900 Sylvan Avenue, Englewood Cliffs, NJ 07632 Data is a real-time snapshot *Data is delayed at least 15 minutes. Global Business and Financial News, Stock Quotes and Market Data and Analysis. Data also provided by THOMSON REUTERS