A key strategy for investors to bolster their holdings is by utilizing the maximum buying power offered through a margin account, which can result in both paper and realized profits. This approach allows for increased leverage and potential gains, but also carries a higher level of risk. It is crucial for investors to carefully consider the implications of margin trading and to have a solid understanding of its mechanics before implementing it into their financial strategy. With careful planning and thoughtful risk management, margin trading can be a powerful tool for maximizing profits in the world of finance.