The European Central Bank, as expected, left interest rates unchanged Thursday. The bank's refi rate stands at 0.05%, while the rate paid on deposits held overnight at the ECB remains at minus 0.3%. The rate on the bank's marginal lending facility remains at 0.3%. ECB President Mario Draghi will hold a news conference at the ECB's Frankfurt headquarters at 2:30 p.m. local time, or 8:30 a.m. Eastern. Draghi isn't expected to announce any further easing measures but is widely expected to signal the ECB is prepared to take further steps if necessary to boost inflation.