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Author: Brent Donnelly

The trading / gambling spectrum

Brent Donnelly surveyed almost 2,000 active traders about work and life. The results are fascinating and Brent's advice is wonderful!
Brent Donnelly May 1, 2025
0 Comments

One Less Vulnerability

Yes, this is a note about oil prices. But more importantly it's a note about all the changes in correlation and transmission to FX that have happened …
Brent Donnelly October 5, 2023
4 Comments

Hagakure: The Secret Wisdom of the Samurai

This is the Way. Not just for the samurai but for the trader.
Brent Donnelly July 28, 2023
5 Comments

Fostering Reality in an Unreal World

ET contributor Brent Donnelly captures the spirit and the content of our Epsilon Connect conference better than anything we could have done ourselves.…
Brent Donnelly July 5, 2023
1 Comment

Trading is a lot like Poker

With the passing of Doyle Brunson, it's a good day to compare poker to trading.
Brent Donnelly May 16, 2023
1 Comment

Dedollarization is Not a Thing

People like to throw around the phrase “gradually, then suddenly” as a witty rejoinder to suggest a dedollarization of the world is a nonlinear pr…
Brent Donnelly March 31, 2023
37 Comments

Why the Yankees Sucked in August

"The laws of probability, so true in general, so fallacious in particular." That was Edward Gibbon in 1774. This is ET contributor Brent Donnelly say…
Brent Donnelly September 15, 2022
2 Comments

Before You Fly The Nest: Advice for kids heading to college

ET contributor Brent Donnelly went out and asked some people he respects what advice they would give kids heading off to college. Here's what he found…
Brent Donnelly August 5, 2022
5 Comments

How to Succeed as a Sell Side Trader

ET contributor Brent Donnelly has some advice that's ostensibly for sell-side traders, but is actually for everyone in markets. And everyone who isn't…
Brent Donnelly June 27, 2022
2 Comments

The Most Important Trading Decision

Trading is hard. Your odds of success are heavily influenced by the seat you choose. Retail trader or bank trader or PM, here are metrics to evaluate …
Brent Donnelly May 10, 2022
1 Comment

Money Can Buy Happiness (in variable and diminishing quantities)

What does your money/happiness curve look like? Is it curved or linear? Does it flatline somewhere? If so, where? There's the game of trading and the…
Brent Donnelly April 6, 2022
32 Comments

Winner’s Tilt

The most damaging stories and narratives are not those that others tell us, but those that we tell ourselves.
Brent Donnelly March 31, 2022
9 Comments

Quitters

in the spirit of the question we are always asking ourselves at Epsilon Theory - WHY AM I READING THIS NOW? - Brent asks a slightly different question…
Brent Donnelly February 17, 2022
3 Comments

That Funny Feeling

The AI censors at YouTube banned a video by ET contributor Brent Donnelly for all the wrong reasons. Meanwhile, the AI censors at Twitter won't ban a…
Brent Donnelly January 10, 2022
37 Comments

Unanchored

ET contributor Brent Donnelly starts up where he left off, with a new launch of AM/FX and a new riff on the classic ET note, "Snip!". In the immortal…
Brent Donnelly September 15, 2021
7 Comments

Notes from Camp Kotok 2021

ET contributor Brent Donnelly with an end-of-summer compilation of the top--of-mind topics at Camp Kotok!
Brent Donnelly August 27, 2021
4 Comments

Day-One Advice for New Hedge Fund Portfolio Managers

Over the last 6 months, there's been a mass influx of new hedge fund PMs, many from bank trading seats leaving for greener (?) pastures. I've been in …
Brent Donnelly June 25, 2021
5 Comments

I’m Trying To Understand Hedonic Adjustments

A Honda Accord cost $12,000 in 1990 and it costs $25,000 now. A Mustang was $9,000 and now it’s $27,000. The BLS has new car prices close to unc…
Brent Donnelly May 10, 2021
13 Comments

Bitcoin Market Profile

ET contributor Brent Donnelly gives a crash course in Market Profile analysis and applies it to Bitcoin since the Coinbase IPO.
Brent Donnelly April 28, 2021
4 Comments

A Conversation with Howard Marks

ET contributor Brent Donnelly talks with Howard Marks about why traditional value investing is likely permanently impaired as a strategy and why Growt…
Brent Donnelly March 17, 2021
5 Comments
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