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Ripple Effect

A Vote For The Yen Carry Trade

Loading ...Addison Wiggin

October 6, 2025 • 1 minute, 53 second read


Japanpolymarket

A Vote For The Yen Carry Trade

We’ve followed Polymarket for over a year now.

There’s something about real people, betting in real-time about events that can tell you more than what the news headlines say.

These bets, which have sometimes amounted to millions of dollars, tend to send a clear signal. It’s a key reason why many members of the Grey Swan Investment Fraternity were able to forecast President Trump’s electoral college win last year.

However, Polymarket betters have finally got one bet wrong – Japan’s new Prime Minister:

Turn Your Images On

Wagers on Polymarket didn’t see Japan’s conservative party pull out its win over the weekend.
(Source: Polymarket)

The Liberal Democratic Party victory has sent Japanese stocks soaring, as party President Sanae Takaichi – now set to become Japan’s first female Prime Minister – is a proponent of stimulus spending, and a China hawk. The electoral win is a vote to keep the yen carry trade alive… and well.

The “yen carry trade” is a currency trading strategy. By borrowing Japanese yen at low interest rates and investing in higher-yielding assets, investors have profited from the interest rate differential. Yen carry trades have played a huge role in global liquidity for decades.

Frankly, we’re disappointed — not because of the carry trade but because the crowd got this one so wrong!

Time will tell how often Polymarket registers big misses. It’s still early days for the event-betting industry online. That said, we kind of liked the betting odds as a forecasting tool. No longer, eh?

~ Addison

 

P.S. Grey Swan Live! continues Thursday at 2 PM ET.

This week’s guest? You’re gonna love him. He’s a supply-side economist who has a decades-long track record of predicting future tech trends. We’re looking forward to picking his brain on the opportunities in AI today – and an eye on how much further the AI bubble can blow.

Who do you think it is? Send your guess to Feedback@GreySwanFraternity.com

We’ll send another hint this afternoon, with the big reveal tomorrow. But don’t wait to sign up and become a member – it just takes a few minutes.

If you have any questions for us about the market, send them our way now to: feedback@greyswanfraternity.com.


Autonomous Weapons

October 29, 2025 • John Robb

In the past, weapon systems took decades to build and changed slowly. Autonomy changes this. For example, new capabilities developed by field tests or simulation (testing scenarios in full physics simulators depicting actual environments) could be downloaded to existing weapon systems, making it possible to upgrade a weapon system significantly without any meaningful hardware changes. A process of improvement that used to take many years would shrink to weeks and, in time, days.

Autonomous Weapons
The Great Repricing of Power

October 29, 2025 • Addison Wiggin

Markets heard what they wanted. NVIDIA’s stock surged premarket on news that Trump would discuss the company’s Blackwell AI chip with Xi, pushing it to an unprecedented $5 trillion valuation.

Meanwhile, China quietly bought its first cargoes of U.S. soybeans this season — a symbolic gesture that reminded traders that diplomacy still runs on trade.

“It’s not détente,” wrote  Bloomberg’s Jennifer Welch this morning, “It is a dealmaking with a timer.” Wall Street is ambivalent on peace, but they do like profits.

In the background, China’s biotech sector continues its ethically murky sprint forward — this week, reports surfaced of Chinese scientists creating monkeys engineered to exhibit schizophrenia and autism.

The Great Repricing of Power
About Yesterday’s Rally

October 29, 2025 • Addison Wiggin

A high concentration of capital in a few stocks at the top ranks high among the features we detailed in Anatomy of a Stock Market Bubble.  

On days like yesterday, headlines urge investors to buy. However, they also underscore the fragility of this terrifying bull market: just a handful of names can make the difference between a big up day and a big down day.

About Yesterday’s Rally
American Autonomy

October 28, 2025 • John Robb

America’s role in the world isn’t that of the world’s policeman (a temporary post-World War II role foisted upon the U.S. due to the Cold War) or as the destination of immigrants (for most of the 20th century, when we saw the most significant increases in individual incomes and quality of life, the U.S. didn’t accept many immigrants). Instead, the role the U.S. has played throughout its existence is as the world’s leader in the production, adoption, and socioeconomic integration of new technologies. We figured out how to do it successfully first, and the world followed.

American Autonomy