Portfolio 120 · On-demand course
A one-hour recorded course from MCC Economics on portfolio diversification. It explains what a diversified portfolio is, then uses Monte Carlo simulation and market data from Yahoo Finance to test how a portfolio might perform.
Portfolio 120 is presented by PJ McCloskey and Aman Mujeeb of MCC Economics, which provides financial analysis and modelling for regulators, governments and businesses.
Presenter
Director, MCC Economics
PJ has worked on price controls from the regulator's side and for regulated companies, including RIIO-2 work with Ofgem and the Utility Regulator for Northern Ireland.
Presenter
Aman co-presents Portfolio 120 with PJ McCloskey.
Portfolio 120 is a one-hour on-demand course on diversifying an investment portfolio. It explains what a diversified portfolio is and why diversification matters, then introduces Monte Carlo simulation, using Yahoo Finance data to test a portfolio across many possible outcomes. You get the video lecture, slides, a transcript and a quiz as soon as you buy.
You will be able to explain how a diversified portfolio is put together and how simulation helps judge it. The course is built around three outcomes.
The lecture starts with the idea of diversification and then introduces Monte Carlo simulation. A quiz at the end tests your understanding.
These are terms you will meet in the course, in plain English.
| Term | Meaning |
|---|---|
| Portfolio | The collection of investments, such as shares and bonds, that an investor holds. |
| Diversification | Spreading investments across assets that do not all move together, to reduce the risk of the portfolio as a whole. |
| Return | The gain or loss on an investment over a period, usually shown as a percentage. |
| Volatility | How much an investment's returns move up and down. It is a common measure of risk. |
| Correlation | How closely the returns of two investments move together. Low correlation is what makes diversification work. |
| Monte Carlo simulation | A method that runs a model many times with randomly drawn inputs to show the spread of possible outcomes. |
| Portfolio optimisation | Choosing how much to hold in each investment to get the best balance of expected return and risk. |
It suits anyone who makes or reviews investment decisions and wants to understand how portfolios are built and tested.
A grounding in statistics helps before you start. After Portfolio 120, Portfolio 140 moves on to optimising a portfolio through calculation, and Econometrics 101 adds the statistical modelling that sits alongside quantitative portfolio work.
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MCC Economics is an independent consultancy, founded in London in 2017, that provides economic and financial analysis to governments, regulators and businesses. Its work includes financial modelling and financial strategy, and its clients include Ofgem, Ofwat and the Civil Aviation Authority. Meet the team on the people page.
MCC Economics has helped us better understand the most important issues for our stakeholders, including: charges, shareholder returns, debt payments and inflation impacts.
See the instructor profiles near the top of this page for the current teaching team.
No. Portfolio 120 is available on demand only and no meeting is held. You watch the recorded lecture at your own pace.
A one-hour video lecture, the slides, an audio transcript and a quiz.
Straight away. Access to all course materials is given as soon as the order is placed.
The simulation is built on market data from Yahoo Finance.
The MCC Economics courses page lists Portfolio 120 at £32.68. The final price is shown at checkout on Eventbrite.
Checkout is handled by Eventbrite, where MCC Economics and Finance is the organiser. The button on this page takes you straight to the listing.
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Page last reviewed October 2026.
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