Penny stocks offer savvy investors a whole host of opportunities. Though there will always be purely speculative plays, some promising companies can become high-quality stocks in the future.The major growth catalyst for penny stock investors is the potential for interest rate cuts later this year. Core inflation slowed down last month, but the Federal Reserve has elected to keep interest rates steady at 5.25% to 5.5%. Nevertheless, a rate cut is coming sooner than later, which makes it an excellent time to ...