Group 1 - Major investment banks Citigroup and JPMorgan have made bold predictions that the worst-performing sectors of the U.S. stock market are expected to rebound in the short term [1] - Citigroup's U.S. equity trading strategy head Stuart Kaiser and JPMorgan's trading team are particularly optimistic about small-cap stocks, technology hardware, and homebuilders, which have lagged behind the S&P 500 in the recent market rally [1] - Kaiser noted that stocks of companies with weaker financial conditions are also worth attention in the current environment [1] Group 2 - The phenomenon of "catch-up" is driving traders and speculative buyers who missed the recent rebound to seek opportunities in lagging sectors before potential new tariffs [2] - Kaiser indicated that systematic traders and discretionary investors will flood into the market as they have not fully captured the current rebound, leading to significant buying in underperforming sectors [3] - Commodity trading advisors (CTAs) have significantly reduced their exposure to stocks in recent weeks, creating conditions for their return to the market following the S&P 500's rise [3] Group 3 - There is an opportunity for short-squeeze as traders close their short positions in the Russell 2000 index, which may further drive up small-cap stocks in the coming weeks [4] - JPMorgan's global market intelligence head Andrew Tyler pointed out that buying into battered sectors like retailers or discretionary consumer goods through derivatives could trigger a short squeeze in the short term [4] - Any short squeeze could lead to mid-cap and small-cap companies outperforming the broader market [4] Group 4 - Long-term investors remain cautious about small-cap stocks and financially weaker companies due to high interest rates and slowing economic growth [5] - The global trade situation remains uncertain due to the unpredictable nature of Trump's policies, leading to a reluctance to invest in small-cap stocks or hold high-risk market positions [5] - The tightening of immigration policies by the Trump administration may increase labor costs, putting pressure on domestic U.S. companies [5]