---
title: "What Is Portfolio Construction?"
term: "Portfolio Construction"
description: "Portfolio construction is how a VC fund plans the mix of investments—number of deals, stage, sector, ownership targets, and reserve allocation—to balance risk and pursue power-law returns."
date: 2026-07-25T00:00:00.000Z
updated: 2026-07-25T00:00:00.000Z
topics: ["venture-capital"]
source: https://venturecapitaltracker.com/glossary/portfolio-construction
---

# What Is Portfolio Construction?

> Portfolio construction is how a VC fund plans the mix of investments—number of deals, stage, sector, ownership targets, and reserve allocation—to balance risk and pursue power-law returns.

**Portfolio construction** is the intentional design of a fund's investment mix—how many companies to back, at what stages, with what ownership, and how much capital to hold for follow-ons.

### How it works

A $100M early-stage fund might target 25–30 core positions with initial checks sized for 10–15% ownership, reserving 50% or more of the fund for follow-on rounds in winners. A seed fund may take more shots with smaller initial checks and lighter reserve ratios. Construction ties to [portfolio theory (VC)](/glossary/portfolio-theory-vc)—accepting many losses to capture outliers.

GPs document construction in LP materials: sector caps, geography, check size bands, and co-invest policy. During deployment, pacing matters—concentrating too many deals in one vintage year can skew outcomes if macro shifts.

### Why it matters

- **Founders:** A fund near full deployment may struggle to lead your Series B even if partners love the business.
- **Investors:** LPs evaluate whether construction matches the stated strategy and whether reserves support pro-rata rights across the portfolio.

### Common mistake

Treating fund size as infinite capacity for new deals. Construction limits mean GPs pass on good companies when reserves or sector caps are exhausted.

### Related ideas

See [power law](/glossary/power-law), [spray and pray](/glossary/spray-and-pray), and [stage-focused fund](/glossary/stage-focused-fund).

## FAQ

### What is portfolio construction in simple terms?

It is the fund's blueprint for how many bets to make, how much to put in each, and how much to save for follow-on rounds. Good construction matches the fund size and stage strategy.

### Why does portfolio construction matter?

It explains whether a fund can lead your next round, how concentrated sector bets are, and whether the GP has reserves when you need bridge support—or will be tapped out.


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Source: https://venturecapitaltracker.com/glossary/portfolio-construction