Tri-Continental Corporation operates as a United States-based closed-end investment management company. The fund's primary objective is to cultivate future expansion of both capital and income, concurrently delivering a consistent stream of current income. It employs a dual investment framework: one segment utilizes systematic quantitative approaches to identify individual equities, primarily focusing on large-cap U.S. public markets across diverse industries. The other, a flexible capital strategy, permits investments across an entity's entire capital structure, encompassing common stocks, debt instruments, and convertible securities. As part of its offerings, the company also issues $2.50 Cumulative Preferred Stock, tailored for investors prioritizing fixed income streams. Managed by Columbia Management Investment Advisers, LLC, the portfolio is diversified across numerous sectors such as information technology, financials, healthcare, consumer discretionary, energy, industrials, and real estate, among others.