ProShares UltraShort Russell2000 ( $TWM) vs. Direxion Daily Small Cap Bear 3X Shares ( $TZA): Weighing Inverse Exposure to Small Caps Both ETFs provide inverse exposure to the Russell 2000 Index, which tracks approximately 2,000 small-capitalization U.S. companies, but they differ in leverage levels and issuer structures. TWM seeks daily results equal to -2x the Russell 2000 Index performance, while TZA targets -3x daily results, resulting in higher volatility and amplified returns (positive or negative) for TZA.