Portfolio construction for VCs involves strategically selecting and managing a diverse range of investments in startups to maximize returns and minimize risks. VCs typically aim to build a portfolio that includes a mix of early-stage, growth-stage, and late-stage companies across different industries and sectors. By carefully curating their portfolio, VCs can spread their investments across various opportunities and increase the likelihood of backing successful companies that will generate significant returns. Additionally, VCs may also consider factors such as geographic location, market trends, and the overall investment thesis when constructing their portfolio.