References: The information sources are coming from the blog of Maung Agus Sutikno: Value at Risk (VaR) in R Programming Language and Portfolio & Single Stock VAR and CVAR in R

Risk management using VaR method

What is Value at Risk?

Value at Risk (VaR) is the highest loss You get with the probalibilty of 5 (1) %.

Value at Risk (VaR) is like a safety measure for your money in finance. It helps you understand the maximum amount you could lose from an investment over a certain time, with a certain level of confidence.

There are different ways to figure out VaR, like looking at past data or using computer simulations. Each way has its good points and bad points, depending on how much information you have and how complicated the investment is.

VaR is usually shown in the same money units as your investment, like dollars or euros. If you see a VaR of $1 million at a 95% confidence level, it means there’s a 5% chance you could lose more than $1 million in that time.

People who handle money, like risk managers and investors, find VaR really useful. It gives them one number to understand how risky an investment is. But it’s not perfect – it relies on some guesses about the future and can’t predict everything. So, it’s smart to use VaR along with other tools and your own judgment to make good decisions about money.

Before watching my professor’s videos, I had never heard of Value at Risk (VaR). But thanks to those helpful lessons, I not only learned about VaR but also how to put it into practice. I used this newfound knowledge to finish not just one project, but five of them! Each project taught me something new about VaR and how it helps manage financial risks. I’m really grateful for my professor’s guidance through all of this. It’s been an eye-opening experience, and I’m excited to continue learning more about it.