The stock market made a significant comeback in 2023, gaining 24%. But with the positive market sentiment, many stocks gained much more than that. Nu Holdings (NU 4.00%), which is part of the Berkshire Hathaway equity portfolio, gained 105% last year. Can it do a repeat in 2024?Why Nu outperformed last yearNu has many features that appeal to both clients and investors. It's an all-digital bank that provides a suite of low-fee financial services to its customers in Brazil, Mexico, and Colombia. The concept i ...