U.S. stock index futures edged lower on Friday, pausing after the previous session's rally set Wall Street's main indexes on track for weekly gains following the Federal Reserve's pivotal stance on monetary policy earlier in the week.

The Federal Reserve's closely followed overnight reverse-repo facility already has begun to reflect Wednesday's big interest-rate cut. Wall Street firms rushed to park extra cash overnight at the facility in the wake of the pandemic,

Wall Street ticked slightly higher as markets awaited an expected interest rate cut by the U.S. Federal Reserve, the first in more than four years.