By Chuck Mikolajczak
NEW YORK (Reuters) - U.S. stocks were poised for a flat open on Tuesday, after the S&P 500 closed out its best month since February, ahead of reports on the manufacturing sector.
Investors will eye the final August reading on the manufacturing sector from financial data firm Markit at 9:45 a.m. (1345 GMT).
At 10 a.m. (1400 GMT), the Institute for Supply Management's August reading on manufacturing will be released. Expectations call for manufacturing to dip slightly to 56.8 from 57.1 in July. Also due at 10 a.m. (1400 GMT) is construction spending data for July.
S&P 500 e-mini futures
The benchmark S&P index gained 3.8 percent in August, its best month since a 4.3 percent climb in February. However, the monthly average volume of 5.24 billion was the lowest of the year, according to data from BATS Global Markets.
Exelixis
Dollar General Corp
Compuware
Norwegian Cruise Line Holdings Ltd
Select Income REIT
Conn's Inc
(Reporting by Chuck Mikolajczak; Editing by Chizu Nomiyama and Nick Zieminski)