At 12.30pm, the key index was up 0.13 points to 1,520.1.
Despite the positive performance on Wall Street overnight as stocks rebounded from Monday's rout, Bursa Malaysia is expected to continue to see selling pressure from the high number of local Covid-19 infections.
"We expect some initial selling activities on the local bourse before recovering for the session, but upside is likely to be capped amid the high number of daily Covid-19 cases, which may be a concern that could dampen the pace of the economic recovery," said Malacca Securities Research in a note.
It added, however, that the recovery in the Nasdaq could lead technology stocks higher over the week as well as follow-through buying interest emerging in sectors such as consumer, construction and property as the EMCO was lifted in several localities.