"John Murphy was not simply a towering figure in our industry," said Lane Mendelsohn, President of Vantagepoint AI. "He was a friend to this company, a champion of my father's work, and a name I grew up hearing spoken with the deepest respect. His passing carries a weight that goes far beyond professional admiration, and we felt it was important to honor that connection publicly and permanently."
A Friendship Rooted in Shared Vision
The relationship between John Murphy and Louis Mendelsohn began in the 1980s, when Murphy discovered Mendelsohn's groundbreaking work on intermarket analysis while serving as a technical analyst at CNBC. Murphy invited Mendelsohn to the network's studios in Fort Lee, New Jersey, and a friendship was forged that would play out across books, television, and the broader evolution of technical analysis over the decades that followed.
That collaboration reached a national audience on April 22, 1994, when the two appeared together on CNBC for a live, nationally broadcast conversation about the role of neural networks and intermarket relationships in modern trading. Murphy gave substantive airtime to Mendelsohn's concept of synergistic market analysis and told him on live television, "I tend to agree with you, and that's the direction my work is going."
Recognition Across Murphy's Most Influential Works
Murphy's respect for Louis Mendelsohn's contributions extended well beyond their personal friendship and into some of the most widely read publications in the history of technical analysis. In his masterwork Technical Analysis of the Financial Markets, published in 1999 by the New York Institute of Finance and widely regarded as the definitive reference book in the field, Murphy dedicated an entire section of Chapter 17 to Mendelsohn's contributions, calling him "the leading pioneer in the application of microcomputer software and neural networks to intermarket analysis."
Murphy also wrote the Foreword to Mendelsohn's 2000 book Trend Forecasting with Technical Analysis, where he acknowledged that the term "synergistic market analysis" was one he first heard Mendelsohn use during their 1994 CNBC interview. In that Foreword, Murphy credited Mendelsohn with proving that intermarket principles work and can be profitably applied to the financial markets. He also selected Louis Mendelsohn to provide the very first endorsement on the cover of his 2004 book Intermarket Analysis: Profiting from Global Market Relationships, placing Mendelsohn's name ahead of some of the most respected analysts in the industry.
Two Pioneers in Intermarket Analysis
In a video recorded about intermarket analysis, Murphy himself reflected on the significance of the Mendelsohn partnership, stating, "I think it's safe to say that we are the two pioneers in the area of intermarket analysis." He described how Louis Mendelsohn was "the first person to really apply the computer and neural networks to the whole matter of intermarket analysis" and praised VantagePoint's neural network technology for moving the discipline "onto another dimension."
"To be recognized as the leading pioneer by the man the entire industry called the father of intermarket analysis, in the very books that generation after generation of traders have used as their foundation, is an honor that cannot be overstated," Mendelsohn said. "My father was deploying AI to analyze global market relationships at a time when the concept was almost entirely confined to university research labs and government projects. John Murphy understood exactly what my father had built, recognized its significance immediately, and was willing to put his name behind it publicly at a time when few others possessed either the knowledge or the vision to do so."
A Legacy That Lives On
John Murphy spent seven years as the technical analyst for CNBC, bringing chart analysis into millions of homes at a time when most investors had never encountered the discipline. He authored multiple bestselling books that taught traders not only how to read charts but how to think about the relationships between asset classes and approach the markets with discipline and perspective. The field of intermarket analysis that Murphy championed is the very intellectual foundation upon which Vantagepoint AI was built.
Vantagepoint AI, founded by Louis Mendelsohn in 1979, released the first commercially available AI-powered market forecasting software for individual traders in 1991. The company now serves more than 47,000 traders across over 138 countries, and its dual-patented technology continues to build on the intermarket analysis principles that both Murphy and Mendelsohn championed throughout their careers.
"On behalf of my father Louis, our entire team at Vantagepoint AI, and the tens of thousands of traders around the world who have been shaped by John Murphy's teachings, we offer our deepest condolences to his family and our profound gratitude for a life devoted to illuminating the markets," Mendelsohn said. "John Murphy made all of us better. We will not forget him."
The dedicated tribute page is now live at VantagePointSoftware.com and features a full letter from Lane Mendelsohn, historical documentation of the Murphy and Mendelsohn collaboration, and reflections on Murphy's enduring impact on the trading community. View the tribute page now by clicking here.
About Vantagepoint AI, LLC
Vantagepoint AI, headquartered in Wesley Chapel, Florida, is the pioneer of AI-driven market forecasting software for individual investors. Founded by Louis Mendelsohn in 1979, the company released the first commercially available neural network-based predictive software in 1991 and holds patents on intermarket analysis and predictive indicator methodologies. Today, VantagePoint software serves more than 47,000 traders across 138 countries. Lane Mendelsohn serves as President, continuing the family's legacy of innovation as a second-generation leader. For more information, visit VantagePointSoftware.com.
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