---
title: "Security Pricing"
url: https://investbymodel.com/Legal/Pricing/
description: "The archived security pricing and performance methodology page of Invest By Model."
published: 2026-08-10
updated: 2026-08-10
---

# Security Pricing

Published 2026-08-10

**Existing Positions**

Existing positions are priced at the close of each trading day

**Additions and Deletions**

Additions and deletions to a portfolio are priced according to the average price for the trading session following a notice of change in the portfolio.

**Portfolio Performance**

Portfolio performance includes the aggregate change of positions and includes interest and dividends earned. Performance does not include transaction expense or research expense.

Reproduced from [/Legal/Pricing/](https://investbymodel.com/Legal/Pricing/) as published between 2008 and 2011.