The Zacks Analyst Blog Highlights BMO REX MicroSectors FANG+ Index 3X Leveraged ETN, GraniteShares 1.5x Long NVDA Daily ETF, MicroSectors Oil & Gas Exp. & Prod. -3x Inverse Leveraged ETN6, ProShares UltraPro QQQ and MicroSectors Gold Miners -3X Inver