7 Momentum Stocks to Buy Now for Extraordinary Gains Before jumping directly into momentum stocks worth buying now, it’s important to understand what momentum trading is. As the name implies, momentum trading relies on reacting to the current movement of a stock or sector. A good screener from which to identify current momentum stocks can be found here . The theory then goes that momentum investors sell shares that are trending down and buy those that are trending up. While the strategy flies in the face of the age-old adage to ‘buy low, sell high’, some research suggests it has merit. AQR Capital Management is one of the more prominent proponents of the strategy. Ronen Israel, a principal at the firm, has defended the strategy at multiple high-level conferences providing evidence that the strategy has produced strong returns and tax efficiency similar to value investing. CLMT Calumet Specialty Partners $14.44 KRTX Karuna Therapeutics $226.12 LQDA Liquidia $5.28 HDSN Hudson Technologies $6.90 LNTH Lantheus Holdings $68.36 IRTC iRhythm Technologies $18.00 VERU Veru $10.22 Calumet Specialty Partners (CLMT) Source: Oil and Gas Photographer | Shutterstock Calumet Specialty Partners (NASDAQ: CLMT ) stock represents a specialty hydrocarbon products company that has maintained positive momentum since early July.