European stocks fell on Tuesday ahead of a key testimony from Federal Reserve Chairman Jerome Powell before a congressional committee, while Indivior shares fell to their lowest levels in nearly three years after the company cut its earnings forecast.
The pan-European STOXX 600 index fell 0.3 percent by 0707 GMT, pressured by losses in energy shares that tracked lower oil prices. Miners were the biggest gainers, up 0.5 percent, helped by a slight rise in copper prices.
Focus will be on Powell, who is scheduled to deliver his semi-annual monetary policy briefing to Congress at 10 a.m. ET (1400 GMT).
In terms of individual stock performance, Dassault Systemes fell 3.7 percent after the French software company cut its full-year profit target, citing its clients being cautious about spending and delaying deals.
BP shares also fell 3.3 percent after it forecast lower refining margins and weak oil trading would hit its second-quarter earnings.
Indivior was the biggest loser on the index, plunging 27.7 percent to its lowest level in nearly three years after the company cut its earnings forecast for the year and announced it would stop sales of its schizophrenia drug Perceris and cut about 130 jobs.
