6,400% From a Stock I Knew Nothing About
FIX has climbed more than 6,400% from the 2020 level marked on this chart.
When it first appeared on my stock screeners, I knew nothing about the company.
That is exactly why this chart is worth studying.
Comfort Systems USA first caught my attention in the summer of 2022. The broader market was in a bear market, yet FIX was pushing to new highs and bucking the trend.
By January 2023, when there was still plenty of uncertainty about whether the indexes were emerging from the bear market, FIX was already establishing higher highs and higher lows.
The stock was demonstrating leadership before the market’s recovery felt comfortable.
I wasn’t searching for an AI trade when I found it. I was screening for the CAN SLIM leadership characteristics I look for.
As it turns out, FIX is an AI infrastructure beneficiary. Its mechanical, electrical, cooling, and modular construction capabilities help build the data centers supporting AI. Management has explicitly identified AI as an additional source of data center demand.
But I didn’t understand that connection when the stock first appeared on my screens.
My process found the strength before I understood the story.
Throughout much of the advance, the fundamentals reinforced the price action. From 2023 to 2025, annual sales rose from $5.2 billion to $9.1 billion, diluted earnings per share more than tripled, and gross margins expanded from 19% to 24.1%.
To me, FIX is a modern model book stock.
It displays the combination William O’Neil teaches us to recognize in How to Make Money in Stocks: strong earnings and sales, improving profitability, relative strength, and constructive price action. There is a reason he opens the book with 100 charts of past market winners. Studying their recurring characteristics helps us recognize potential leaders while their moves are still developing.
Mark Minervini makes a point in Think & Trade Like a Champion that fits this experience perfectly:
“I embrace new names instead of avoiding them.”
The discussions in Momentum Masters reinforce another lesson: leading stocks can emerge before the indexes make a new uptrend obvious. Stan Weinstein’s Stage 2 framework gives us a way to recognize the advancing phase, with rising prices, higher highs, and higher lows.
These lessons come together in FIX.
A process helps you find potential leaders, identify proper entries, define your risk, and manage the trade as it develops. Following that process requires discipline, especially when the company is unfamiliar or the market still feels uncertain.
“The trend is your friend until the end, when it bends.”
The last part is important, too. Give a winner room to develop within your rules, and respect your exits when the evidence changes.
You need a process that can bring an unfamiliar leader to your attention, the patience to let a winner develop, and the discipline to follow your rules from entry to exit.












