Woofun AI reports that Arthur Hayes, co-founder of BitMEX, has outlined a macroeconomic thesis titled 'Yen-Quake,' predicting a sharp appreciation of the Japanese yen against the US dollar through the Foreign and International Monetary Affairs (FIMA) mechanism. This structural shift involves the Japanese government pledging Treasury bonds to the Federal Reserve for buyback financing, thereby borrowing US dollars to purchase yen in the foreign exchange market. Hayes contends that this specific liquidity injection will disproportionately benefit risk assets, particularly Bitcoin, Ethereum, and ENA, while necessitating regulatory adjustments by Federal Reserve Chair Warsh to fully unlock the potential for massive asset price appreciation.

The context for this prediction stems from a decade-long depreciation of the yen, which has artificially suppressed global asset prices by enabling cheap carry trades. Hayes identifies three potential policy pathways to correct this imbalance, noting that the US Treasury and Japanese political leadership have converged on a single preferred option. The first option involves the Bank of Japan (BOJ) raising interest rates to eliminate the yield differential between the yen and the US dollar.

The second option requires the government to lobby domestic institutions, such as the Government Pension Investment Fund (GPIF), to shift investment strategies from overseas assets back to domestic securities. The third and preferred option, however, utilizes the Ministry of Finance (MOF) to engage in reverse repo transactions with the Federal Reserve, allowing Japan to leverage its massive Treasury holdings to defend the yen's value without triggering domestic economic distress.

Recent geopolitical signals have reinforced the likelihood of this third option. Two weeks ago, monetary policy officials from the US and Japan executed a joint currency manipulation maneuver, euphemistically termed 'intervention.' Hayes notes that while such coordinated action would be labeled a 'conspiracy' if performed by private entities, it is standard procedure for nation-states. Treasury Secretary Scott Bessent has explicitly stated his desire for the Federal Reserve to raise counterparty limits for FIMA reverse repo transactions, enabling the MOF to utilize its extensive asset reserves to stabilize the yen.

Concurrently, the MOF has announced collaboration with US authorities to maintain a lower US dollar/yen exchange rate, signaling a clear intent to reshape the global currency landscape and end the era of extreme yen weakness.

Option 1, which relies on the BOJ raising interest rates, is deemed unviable due to severe political and economic constraints. Currency trading is fundamentally driven by interest rate differentials; currently, the US dollar yields 2.75% more than the yen, incentivizing investors to borrow yen, convert to dollars, and purchase US Treasuries for positive carry. To appreciate the yen, the BOJ would need to raise rates to align with other central banks that hiked rates post-pandemic.

However, the BOJ's decade-long Yield Curve Control (YCC) policy, which involved printing money to keep yields on 10-year Japanese Treasury bonds low, has made the central bank the largest holder of these bonds. A rate hike would cause bond prices to fall, resulting in massive unrealized losses for the BOJ. While the BOJ can theoretically print money to cover losses, a large-scale expansion of its balance sheet could erode global confidence in the yen, reducing its acceptance for essential transactions like oil, food, and medicine. Consequently, the BOJ hesitates, fearing catastrophic loss of monetary sovereignty. Politicians also oppose rate hikes because higher yields increase the cost of servicing fiscal deficits, limiting their ability to fund subsidies and tax cuts that secure public support.

Furthermore, a rapid yen appreciation would force investors who used yen to finance global stock and bond purchases to close positions abruptly. This scenario played out in July 2024, when the yen exchange rate moved from 160 to 140 within a few trading days. Kazuo Ueda, the new BOJ governor, unexpectedly announced rate hikes, triggering market panic. Speculators shorting the yen rushed to cover positions, leading to rumors that portfolio managers at several hedge funds were forced to resign, mirroring the downfall of AI stock guru Leopold, dubbed 'Kenny G.'

When the yen hit 140, both the Nasdaq 100 and the Nikkei dropped by more than 10%. The BOJ panicked and announced on August 12 that it would consider 'market conditions' for future hikes, effectively pausing normalization. This reversal caused the yen to weaken and stock markets to resume their upward trend, demonstrating that the BOJ cannot withstand the market pressure of rapid rate normalization.

Option 2, involving 'Japan Inc.' selling overseas assets to repatriate yen, faces similar structural hurdles. Hayes defines 'Japan Inc.' as enterprises and public sector entities holding financial assets. In his book The Nomura Empire: Inside Japan's Legendary Financial Dynasty, Albert J. Alletzhauser recounts how, after the 1987 stock market crash, the Ministry of Finance instructed Nomura to buy US stocks to support the market. Although Nomura was a private company, it complied due to societal pressures for conformity and collective action, prioritizing 'national honor' over shareholder returns.

Similarly, if the government advised private companies and individuals to sell overseas assets, primarily US stocks and Treasuries, and exchange dollars for yen, 'Japanese companies' would likely comply. The key indicator for this shift is the Government Pension Investment Fund (GPIF), Japan's largest pension fund, managed by a bureaucratic committee appointed by various government departments. In 2014, to support 'Abenomics' money printing, then-Prime Minister Shinzo Abe spent years replacing GPIF's leadership, prompting them to vote to increase the proportion of overseas stocks and bonds in their portfolio.

This was crucial because GPIF manages a portfolio worth $1 trillion to $2 trillion. In October 2014, when their investment strategy changed, it triggered an unstoppable wave of selling yen to buy dollars and purchasing US assets. This created a structural seller of yen, giving speculators confidence to use cheap yen for carry trades without fearing appreciation. Recently, Mr. Katayama, head of the MOF, stated it was time to adjust GPIF's strategy to prioritize domestic securities.

However, GPIF bureaucrats disagree, citing the best interests of policyholders. As supporters of 'Abenomics,' they resist shifting focus domestically. Just as Abe controlled the situation through personnel arrangements from 2012 to 2014, Prime Minister Sanae Takaichi must take similar actions. For investors, the signal is clear: GPIF's strategy will eventually change, forcing it to sell foreign securities worth hundreds of billions of dollars, pushing up the yen. Although this process will take several years, it worries Bessent, as 'Japan Inc.', a major holder of US securities, would shift from buyer to seller, undermining US stock and Treasury markets.

However, because the US provides security for Japan, 'Japan Inc.' cannot easily sell its US assets, making this option politically and strategically difficult.

Geopolitical realities have thus paved the way for Option 3. The current US dollar/yen exchange rate of 160 is far from the fair value of 90 based on purchasing power parity. Neither the US nor Japan can afford the losses associated with a sudden correction to 90. Since Trump's confidant, Warsh, became Federal Reserve Chairman, Option 3 has been approved for implementation. The 'Treasury-Federal Reserve agreement' for 2026 remains valid, allowing Warsh to use reverse repo tools and policy interest rates lower than nominal growth to directly fund short-term Treasuries issued by Bessent. Warsh also has the authority to implement Option 3, adjusting the US dollar/yen exchange rate to rebalance the global economic system. This approach avoids the domestic economic pain of rate hikes and the geopolitical friction of asset sales, offering a controlled mechanism for yen appreciation.

The mechanics of Option 3 involve the MOF using the FIMA mechanism to pledge Treasury bonds to the Federal Reserve for buyback financing. The process is straightforward: first, the MOF buys Treasury bonds and obtains US dollar loans through the Federal Reserve's FIMA mechanism. Second, the MOF sells these dollars in the global foreign exchange market to buy yen. Third, the MOF reinvests these yen funds domestically by purchasing Japanese Treasury bonds and stocks. This circular flow of capital allows Japan to strengthen its currency without selling US assets, maintaining diplomatic relations while achieving monetary policy goals. The Federal Reserve facilitates this by providing US dollar liquidity, effectively monetizing Japanese debt holdings in exchange for yen stability.

The impacts of this policy are significant and multifaceted. The Federal Reserve's balance sheet will expand as the outstanding balance of FIMA buybacks increases, injecting US dollar liquidity into the global system. The US dollar/yen exchange rate will fall, meaning the yen appreciates. Japanese bond yields will decline due to the purchase of yen for Japanese bonds, lowering borrowing costs domestically. The Japanese stock market will rise due to the purchase of yen for stocks, boosting equity valuations. The 'victims' of this policy include American taxpayers, as Japan owes American taxpayers money that will likely never be repaid due to political considerations. This is essentially money printing, leading to inflation in financial assets and physical goods. The US cannot use its forward operating bases in the Asia-Pacific region to fight China and Russia just to recover this loan.

Additionally, anyone shorting the yen must immediately close positions once the trend becomes clear.

However, this is not a major issue because volatility in the US dollar/yen exchange rate will decrease, allowing yen carry trades to be closed orderly over the years.

Implementation barriers remain, primarily related to FIMA limits. Currently, the FIMA mechanism sets a ceiling of $60 billion on outstanding loans per counterparty. In the most recent attempt to manipulate the US dollar/yen exchange rate, the Treasury and MOF invested over $100 billion, but this only led to a 5% appreciation in the yen, lasting only a few trading days. To make Option 3 effective, this ceiling must be completely removed, and the scope of eligible counterparties expanded to include large Japanese companies and quasi-public investment institutions like GPIF. Without these changes, the mechanism lacks the scale to sustainably impact the exchange rate, rendering it ineffective against market forces.

Woofun AI data shows that the crypto market is poised for significant gains from this liquidity shift. Hayes argues that Bitcoin and Ethereum are currently undervalued, and ENA could see a 5-10 times increase in the coming months. The influx of US dollars from FIMA repos will provide the necessary 'ammunition' for a bull run. Warsh's role is critical; she must convene a subcommittee to modify FIMA rules, paving the way for Japan to use this mechanism. This regulatory change is the final piece of the puzzle, unlocking the potential for massive asset appreciation across crypto and traditional markets. The convergence of monetary policy, geopolitical strategy, and regulatory adjustment creates a unique opportunity for investors to capitalize on the yen's reversal.