Could rebounds be in store for these beaten-down stocks?Let the good times roll. The S&P 500 has soared nearly 21% in 2024, including a 2% gain in September. What's especially noteworthy is that the bull market has broadened to include more than only high-flying tech stocks. However, not all boats are being lifted by the rising tide. Three stocks were especially hit hard last month.Dollar TreeShares of Dollar Tree (DLTR 0.17%) plunged 16.8% in September. The stock is down 50% so far in 2024.Dollar Tree's st ...