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Ripple Effect

The Calm Before the Terrifying Bull

Addison WigginAddison Wiggin

December 16, 2025 • 1 minute, 56 second read


Advance/Decline ratio

The Calm Before the Terrifying Bull

The major indexes have been trading sideways since the end of November.

But there is one tiny indicator showing the broad market is ready to push higher:

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While the S&P 500 index has been flat the past few weeks, more stocks have been rising than falling. (Source: Market In Out)

The advance/decline ratio looks at the percentage of stocks in an index that are rising compared to the number that are falling.

While the index has been flat the past few weeks, the advance ratio has been improving. Only A few names – notably Oracle – have been keeping a lid on markets.

“A rising advance/decline ratio is a sign of a healthy market that isn’t dominated by just a few names,” notes Andrew Packer. “And it’s a good sign that the market isn’t just dependent on a handful of tech stocks.”

The pre-Santa Rally setup shows a rotation out of Mag 7 tech stocks and into the broader market through the end of the year.

Under our terrifying bull market forecast – when investors buy stocks to beat inflation rather than for fundamental value – the advance/decline ratio will go into overdrive.

We’re not there yet.

~ Addison

P.S. Last week, we broke bread with an old friend of the house, Dan Amoss—a forensic accountant by training and a market bloodhound by instinct.

Dan was early to the tech wreck, earlier still to the rot in mortgage-backed securities, and famously short Lehman Brothers when that trade exploded 470% overnight on September 15, 2008. For the last decade, he’s been trading stocks and options for another friend you may recognize, Jim Rickards.

To the casual observer, Dan’s work invites comparisons to Michael Burry of The Big Short fame. The difference is that Dan was practicing this brand of forensic investing long before Hollywood learned how to spell “CDO.”

I’ve invited Dan to join us on Grey Swan Live! this Thursday, December 18, 2025 to share his findings directly.

Dan’s going to walk us through several trades he’s made during the AI boom—and, more importantly, the accounting stress fractures beneath the surface that lead him to believe 2026 could prove even more treacherous for individual investors than 2000–01 or 2008–09. It’ll be dense, unsettling, and refreshingly coherent. You won’t want to miss this one.


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