Stock futures were flat on Tuesday as the S&P 500 looks to wrap up its seventh straight month of gains at a record high.
Futures for the Dow Jones Industrials dropped nine points to 35,343.
Futures for the S&P 500 dipped 1.5 points to 4,523.75.
Futures for the NASDAQ Composite Index inched up 1.5 points to 15,596.
Tuesday marks the last trading day of August, and major averages are poised to post solid gains for the period. The S&P 500 is up 3% this month, while the tech-heavy NASDAQ has climbed 4%, on pace to post its third winning month in a row. The blue-chip Dow is up a more modest 1.3%.
For the S&P 500, it will be its longest winning streak since a 10-month run ending in December 2017. This is also the benchmark's ninth positive month in the last 10.
Zoom shares fell about 10% in pre-market trading on Monday after the video-conferencing software company showed slowing revenue growth in the second quarter. The drop in shares came even as Zoom's earnings beat estimates and the company raised full-year guidance as the pandemic took a turn for the worse.
On the political front, the Pentagon said the U.S. has finished its evacuation efforts from Kabul's airport, effectively ending America's longest war.
Overseas, in Japan, the Nikkei 225 index leaped 1.1% Tuesday, while in Hong Kong, the Hang Seng index popped 1.3%.
Oil prices let go of 82 cents to $68.39 U.S. a barrel.
Gold prices gained $3.10 to $1,815.30 U.S. a pound.