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December 11, 2025 at 1:47 PM

Reposted by Fortitudo Technologies

Anton Vorobets

@antonvorobets.com

The mean-variance excuses are just hilarious.

I recently saw someone write: “old theory is taught, so that new and better methods can be appreciated more.”

Read more about it here: substack.com/@antonvorobe...

#quant #quantsky #finance #markets #python #cvar #investing #investment

The mean-variance excuses are just hilarious. I recently saw someone write: “old theory is taught, so that new and better methods can be appreciated more.” It’s like a restaurant that intentionally ...

December 9, 2025 at 1:54 PM

Reposted by Fortitudo Technologies

Anton Vorobets

@antonvorobets.com

Thank you for reading and supporting the Quantamental Investing publication.

Read more about it here: substack.com/profile/1707...

#quant #quantsky #finance #markets #python #investing #investment #quantamental

Thank you for reading and supporting the Quantamental Investing publication. I am very happy that it has reached a trending spot due to your support. This motivates me to provide even more value for...

This post is a reminder that it is the last chance to get the Black Friday discount on yearly subscriptions to the Quantamental Investing publication.

December 7, 2025 at 1:48 PM

Reposted by Fortitudo Technologies

Anton Vorobets

@antonvorobets.com

Last chance to grab the Black Friday deal.

#quant #quantsky #finance #markets #python #investing #investment

Black Friday Last Chance

December 5, 2025 at 1:39 PM

Reposted by Fortitudo Technologies

Anton Vorobets

@antonvorobets.com

What you can realistically expect from good multi-asset portfolio construction:

substack.com/@antonvorobe...

#quant #quantsky #finance #markets #python #investing #risk #return

What you can realistically expect from good multi-asset portfolio construction. I sometimes meet people who say things like: “0.5%-1% extra return per year doesn’t really make a difference.” “So wh...

Sequential Entropy Pooling installation | Anton Vorobets

December 4, 2025 at 1:46 PM

Reposted by Fortitudo Technologies

Anton Vorobets

@antonvorobets.com

Clarifying misconceptions about the Python Entropy Pooling implementation:

www.linkedin.com/posts/antonv...

#quant #quantsky #finance #markets #python #entropypooling #seqep

Clarifying misconceptions about the Python Entropy Pooling implementation. I recently read an article that uses the Entropy Pooling implementation from the fortitudo-tech Python package. That’s grea...

www.linkedin.com

December 3, 2025 at 1:54 PM

Reposted by Fortitudo Technologies

Quantocracy

@quantocracy.bsky.social

Academic Anti-Science from @antonvorobets.bsky.social #quant

This is a longer edition of the Portfolio Construction newsletter, presenting the many ways that I have witnessed anti-scientific tendencies in finance and economics academia. If you are fully aware of these, and just want to skip to the popular posts recap, this is available at the bottom of the post. The TL;DR version is that the current academic system seems to foster a nepotistic environment

antonvorobets.substack.com

December 3, 2025 at 2:01 AM

Reposted by Fortitudo Technologies

Anton Vorobets

@antonvorobets.com

A summary of the anti-scientific tendencies in finance and economics academia.

At the end of this article, there is a popular posts recap. Make sure to check it out.

#quant #quantsky #finance #markets #python #investing #investment #academia #science

Academic Anti-Science

December edition of the Portfolio Construction newsletter, explaining how anti-science manifests itself in academic finance and economics.

Subscribe to Quantamental Investing

December 2, 2025 at 1:48 PM

Reposted by Fortitudo Technologies

Anton Vorobets

@antonvorobets.com

To celebrate Black Friday, there is currently a 25% discount on yearly subscriptions for the Quantamental Investing publication.

Find it here: antonvorobets.substack.com/blackfriday

#quant #quantsky #finance #markets #python #riskmanagement

Applied quantitative investment management using the investment framework and methods from the Portfolio Construction and Risk Management book. Click to read Quantamental Investing, by Anton Vorobets,...

antonvorobets.substack.com

November 28, 2025 at 12:53 PM

Reposted by Fortitudo Technologies

Anton Vorobets

@antonvorobets.com

Python case study of gold’s properties in a multi-asset portfolio, including VIX and inflation shocks.

It analyzes the properties of gold and the effect of a 5% allocation financed by low risk bonds.

#quant #quantsky #finance #markets #python #investing

Gold in Multi-Asset Portfolios

This article analyzes the characteristics of gold in multi-asset portfolios, including an analysis of inflation and VIX shocks.

November 27, 2025 at 1:47 PM

Reposted by Fortitudo Technologies

Anton Vorobets

@antonvorobets.com

The investment risk perception results are in!

Given the large majority think it’s losses, it’s even more surprising that academics keep spending so much time on variance.

Thera are also good news for people who truly think risk is variance: substack.com/profile/1707...

#quant #quantsky #finance

The investment risk perception results are in! Given the large majority think it’s losses, it’s even more surprising that academics keep spending so much time on variance. I have good news for those...

November 26, 2025 at 2:01 PM

Reposted by Fortitudo Technologies

Anton Vorobets

@antonvorobets.com

I struggle to understand why people continue to use twitter.

It is quite obvious that twitter is intentionally manipulating users by spreading lies and hate by allowing fake bot profiles to flourish.

Read more here: substack.com/@antonvorobe...

#quant #quantsky #finance #markets #python

I struggle to understand why people continue to use twitter. It is quite obvious that twitter is intentionally manipulating users by spreading lies and hate by allowing fake bot profiles to flourish....

High-Dimensional CVaR Optimization

November 25, 2025 at 1:57 PM

Reposted by Fortitudo Technologies

Anton Vorobets

@antonvorobets.com

Clarification of some misconceptions about Monte Carlo for investment markets simulation:

substack.com/@antonvorobe...

#quant #quantsky #finance #markets #python #investing

November 25, 2025 at 8:06 AM

Reposted by Fortitudo Technologies

Anton Vorobets

@antonvorobets.com

Busting the high-dimensional CVaR optimization myth!

Some people question whether CVaR optimization is feasible for high-dimensional portfolios.

Below is a Python case study that optimizes the 95%-CVaR over 10000 joint scenarios for 2000 stocks.

#quant #quantsky #cvar #python #risk #investing

This article presents a Python case study that optimizes the CVaR for a portfolio of 2000 stocks, illustrating that such problems are practically feasible.

Lecture 12: Tail Risk Hedging and Analysis

November 20, 2025 at 1:49 PM

Reposted by Fortitudo Technologies

Anton Vorobets

@antonvorobets.com

You might have missed the last lecture of the Applied Quantitative Investment Management course.

This lecture is about tail risk hedging and analysis, a topic that many are concerned with in practice.

Make sure to check it out.

#quant #quantsky #finance #investing #risk #management #python #cvar

This lecture goes through Chapters 7 and 8 from the Portfolio Construction and Risk Management book, presenting tail risk hedging and analysis.

November 19, 2025 at 1:43 PM

Reposted by Fortitudo Technologies

Anton Vorobets

@antonvorobets.com

Avoid the data and investment technology bundle mistake.

I sometimes hear institutional investors say: “but I get so much data with this system”.

Read more about its fallacy here: substack.com/profile/1707...

#quant #quantsky #finance #markets #python #investing #investmemt

Avoid the data and investment technology bundle mistake. I sometimes hear institutional investors say: “but I get so much data with this system”. The implicit point being that they know the investme...

Open-Source Investment Software Issues

November 17, 2025 at 12:57 PM

Reposted by Fortitudo Technologies

Anton Vorobets

@antonvorobets.com

Open-source software is fantastic for core technologies such as operating systems, version control, and programming languages. However, when it comes to more specialized applications, especially the ones that have a zero-sum game nature, proprietary solutions usually come out on top #quant #quantsky

This article presents the issues with open-source packages for investment analysis and risk management.

Subscribe for educational investment and risk management content by Fortitudo Technologies, an investment technology company offering novel investment software as well as quantitative and digitalizati...

November 13, 2025 at 1:48 PM

Fortitudo Technologies

@fortitudo-tech.bsky.social

Have you seen our YouTube channel?

We share a lot of educational content there, for example, walkthrough videos of our open-source Python package and scientific articles.

Check it out here: www.youtube.com/@fortitudo-t...

#quant #quantsky #finance #markets #python #investing #investment

Fortitudo Technologies

www.youtube.com

November 12, 2025 at 3:42 PM

Reposted by Fortitudo Technologies

Anton Vorobets

@antonvorobets.com

Make sure to check out the last two lectures of the Applied Quantitative Investment Management course:

Here is a Substack Note about lecture 11: substack.com/profile/1707...

#quant #quantsky #finance #markets #python #investing #riskmanagement

I noticed a sudden drop in the watch time of the last lectures of the Applied Quantitative Investment Management course. I don’t know if it is due to people returning from holiday or some other issue...

November 10, 2025 at 1:24 PM

Reposted by Fortitudo Technologies

Anton Vorobets

@antonvorobets.com

Don’t go down with the sinking mean-variance ship:

substack.com/profile/1707...

#quant #quantsky #finance #markets #python #investing

Don’t go down with the sinking mean-variance ship. Mean-variance is the technology that most investment managers understand will not lead to better performance and may even be a recipe for disaster. ...

November 8, 2025 at 2:18 PM

Reposted by Fortitudo Technologies

Anton Vorobets

@antonvorobets.com

The benefits of a strong quantitative investment foundation:

substack.com/profile/1707...

#quant #quantsky #finance #markets #python #investment #investing #risk

The benefits of a strong quantitative investment foundation. I am sometimes asked why I don’t just use some variance based starting point and make small improvements to a traditional method. This is...

November 1, 2025 at 1:18 PM

Reposted by Fortitudo Technologies

Anton Vorobets

@antonvorobets.com

Who shared the pcrm-book repository?

Read more in this Substack Note: substack.com/@antonvorobe...

#quant #quantsky #finance #markets #python #investment

Who shared the pcrm-book repository? :-) A couple of days ago, there was a large increase in traffic. Does someone know where it was shared? If you haven’t seen the repository yet, it contains many ...