Venture capital accounts for a small portion of overall alternative assets but has a disproportionate impact on the economy. While VC funding amounts are small at around $28 billion annually in the US, VC-backed companies represent over half of the current public company market cap and were responsible for over a third of US jobs. Returns in venture capital are also highly variable, with the top quartile funds achieving average annual returns over 20% compared to under 10% for bottom quartile funds. Success in venture capital relies on identifying companies that can achieve "home runs" or outsized exits in the billions, as these will account for the vast majority of fund returns due to the power law distribution of outcomes.