A concentrated equity position is a frequent byproduct of corporate success — typically arising from executive equity compensation (such as restricted stock units, incentive stock options, or non-qualified stock options), a corporate acquisition, or an early-stage investment that compounded exponentially. While a concentrated holding can build immense wealth, retaining it exposes your balance sheet to severe idiosyncratic risk. A single corporate scandal, technological disruption, or execution failure can erase decades of capital accumulation.
The structural dilemma of diversification is the immediate tax friction of liquidation. Selling highly appreciated stock triggers federal long-term capital gains taxes under IRC §1(h), “capital gains” at rates up to 20%, plus the 3.8% net investment income tax (NIIT) under IRC §1411. When combined with state income taxes — which can reach 13.3% in California or 10.9% in New York — the immediate tax drag of diversification can easily exceed 35% to 40% of the position’s total value. Consequently, you must evaluate specialized structures to mitigate or defer this friction.