The Roundhill Cannabis ETF (BATS:WEED) has posted a dramatic surge in technical strength, with its momentum ranking jumping to the 89th percentile this week amid renewed optimism for federal cannabis reform.Surging Momentum ScoresAccording to the Benzinga Edge’s data, the Roundhill ETF's momentum score hit 89.25, a percentile ranking that places it well ahead of many industry peers. For context, other major players in the sector have lagged; Aurora Cannabis Inc. (NASDAQ:ACB) , for example, currently holds a ...