In today's Masters Series, originally from the July 9 issue of the free Health & Wealth Bulletin, Dr. David Eifrig explains how his brand-new stock system could help you know when to buy the stocks you're interested in...

In today's Masters Series, originally from the July 13, 2026 issue of the free Health & Wealth Bulletin, Dr. David Eifrig provides five tips for buying winning stocks...

Even after nearly a decade, you're not late to learning how AI will impact the market – or the tools themselves...

Real-world limits... Rights aren't the force of gravity... The magic of money... The laws of finance... Diesel fuel and AI led me here...

Warren Buffett knows the real secret to building wealth...

1) One of the most common mistakes humans make – in general, but especially when it comes to investing – is commitment bias. The Decision Lab defines commitment bias as "our tendency to remain committed to our past behaviors, particularly those exhibited publicly, even if they do not have desirable outcomes." This can be a good thing – take weddings, for example. One of the reasons our ancestors created the tradition of a big, public ceremony in which the couple expresses their undying love for each other is to create the type of commitment bias that will help them weather […]

More than two decades have passed since the dot-com bubble burst. Yet it seems investors have forgotten this painful lesson...

SpaceX's quick IPO round trip... The average investor has lost money... The banks got theirs... A tool to fight through market hype... Investing is like planting a tree... Be in the right spot at the right time... Doc's new stock tool...

Summer is attacking your sleep, but you can fight back...

1) As I predicted many times (archive here), the most overvalued large-cap stock of all time, SpaceX (SPCX), has continued to tumble... Yesterday, it hit a new all-time low and, for the first time, traded below its $135 IPO price. Don't even think about bottom-fishing this one, as it still trades at 92 times trailing revenues. That means it's still nearly 10 times overvalued, given that I think a generous multiple for the stock would be 10 times revenues. As a response to this extreme overvaluation, in my June 12 and June 15 e-mails, I named 12 beaten-down stocks I […]