"Despite today's positive performance, UGA is consolidating the October down move in the form of a 'bear flag' (chart pattern)," said Zev Spiro, CEO and chief market technician at Orips Research in New York. United States Gasoline ( UGA ) -- the largest ETF tracking gasoline futures -- soared 3.8% to 56.53. ETFs tracking gasoline prices flared up Friday as futures surged 3.5% on tight supplies in the storm-ravaged Northeast and expectations of the region's slow recovery boosting demand.