Building Carry Risk

Global Markets on Edge as Japanese Yields Ascend

The week's opening hours presented a fragmented global economic picture. European equities found some breathing room as bond yields in the region receded, helping the Stoxx 600 maintain its position above the 50-day moving average. Conversely, major US stock indexes struggled to sustain early optimism. This sentiment shift followed reports, later denied by Washington, of a potential temporary waiver on sanctions. The initial uncertainty has now given way to renewed pressure on equities as yields begin to climb again.

The spotlight has firmly landed on the Japanese 10-year government bond yield, a key indicator that now hovers near the 2.80% mark. This ascent is being fueled by a confluence of factors. Rising crude oil prices are injecting inflationary pressures, which in turn are bolstering expectations for a policy adjustment from the Bank of Japan (BoJ). Adding to this narrative, recent economic data from Japan painted a picture of robust growth, with the economy expanding by over 2% annualized in the first quarter. Consumer spending also surpassed forecasts, while price pressures showed little sign of abating as anticipated by analysts.

These developments are sharpening the focus on hawkish BoJ policy shifts, specifically the possibility of interest rate hikes aimed at curbing inflation. This scenario is not confined to Japan; it sends ripples through US Treasury markets, influencing yields across the globe.

The Far-Reaching Impact of Japanese Yields

The significance of Japanese yields extends far beyond its borders, primarily because Japan stands as one of the largest foreign holders of US Treasuries. For years, Japanese institutional investors, including pension funds and insurance companies, found US government bonds appealing. The near-zero yields prevalent in Japan made American debt a considerably more attractive proposition. However, this dynamic shifts dramatically when domestic yields become competitive.

Should the 10-year Japanese Government Bond (JGB) yield ascend towards the 1.75% to 1.77% range, domestic bonds would regain considerable appeal for major Japanese institutions. These investors could then secure respectable returns at home without the associated currency risks, hedging costs, or the complexities of overseas exposure inherent in holding US Treasuries. This potential reallocation of capital is a critical consideration.

A substantial shift, even a partial one, of funds from Japanese investors back into domestic bonds could diminish demand for US Treasuries. This reduction in demand could, in turn, exert upward pressure on US yields. Indeed, the US 10-year yield is currently pushing past 4.60%, a level not seen in a year, illustrating this dynamic.

Beyond Japan, China, another significant holder of US Treasuries, has also been reducing its exposure. Amidst escalating geopolitical tensions, including the conflict involving Iran, China has been actively diversifying its foreign exchange reserves. For years, the nation has been substituting part of its US Treasury holdings with gold, a trend observed among other central banks as well. This move is expected to support gold's long-term positive trajectory.

Gold's Dilemma and the Reverse Carry Trade Threat

In the immediate term, gold's price action remains constrained by rising yields. Higher sovereign yields increase the opportunity cost of holding non-yielding assets like gold, making interest-bearing investments comparatively more attractive. Despite this short-term pressure, each dip in gold prices presents a potential opportunity for investors to solidify long-term bullish positions.

The increasing Japanese yields represent a growing risk for global markets, often referred to as the reverse carry trade. This occurs when Japanese investors repatriate funds, leading to higher US Treasury yields, which then propagate across global yields and weigh on equity valuations. The last significant episode of this kind, in August 2024 following a BoJ rate hike, saw the Nikkei index plummet by nearly 20% in a matter of days, while assets funded by cheap yen borrowing experienced a roughly 14% decline.

With current market valuations already stretched, a repeat of such an event appears increasingly plausible, particularly if the BoJ proceeds with another rate hike. The central bank's upcoming meeting on June 16–17 is widely anticipated to see a rate increase from 0.75% to 1.00%. A clear indicator of a reverse carry trade unwinding is a sharp depreciation in the USD/JPY pair, coupled with a simultaneous decline in equities and collapsing yields, signaling a broad deleveraging and risk-off sentiment.

Historically, episodes of this nature have largely resulted in temporary market dislocations. This was largely because Japanese yields remained significantly below the critical 1.75%–1.77% threshold for the 10-year JGB, meaning foreign assets still offered a compelling yield advantage that encouraged borrowing cheap yen for offshore investment. However, as markets move sustainably above this threshold, and as Japan exits a prolonged deflationary period, a more structural shift in capital allocation could be underway. This next reverse carry episode might herald a gradual, sustained repatriation of Japanese capital, as domestic bonds begin to offer sufficiently attractive returns without the inherent risks of foreign investment.

Such a sustained reallocation could fundamentally alter global liquidity dynamics. Japan, as one of the world's largest pools of savings, plays a crucial role. A significant return of capital home could reduce demand for US Treasuries and other global risk assets, drive up global borrowing costs, strengthen the Japanese yen structurally, and tighten overall liquidity conditions after years of abundant Japanese-funded capital supporting everything from technology stocks to emerging markets.

Reading Between the Lines

While the theory of a reverse carry trade poses a significant risk, the practical implications for global liquidity might be mitigated. Central banks, such as the Federal Reserve, possess the tools to counteract potential liquidity gaps through quantitative easing, repo facilities, or other liquidity injection programs. This capacity might explain why the sustained rise in the 10 year JGB yield above the 1.75%–1.77% threshold has not yet triggered the widespread selloff many predicted.

Instead, global liquidity has continued to expand, with a considerable portion finding its way into equity indices and other risk assets. This suggests that a strategy of buying dips and remaining invested in equities, particularly in an environment of sustained liquidity injections, remains a viable approach. The assertion that the new Fed Chair, Kevin Warsh, could credibly reduce the Fed's balance sheet while simultaneously lowering rates warrants skepticism, given the inherent inflationary implications.