A Citigroup report points out that the current macroeconomic environment is highly similar to the 1988-1989 tightening cycle, when the economy maintained resilience, inflationary pressures gradually accumulated, and only after economic activity slowed did policy shift to easing. During that tightening cycle, the Federal Reserve raised rates 16 consecutive times. Market concerns about the Fed restarting rate hikes are heating up, bringing a historically warning-significant cycle back into investors' view. Citigroup Research's latest quantitative macro strategy report shows that the similarity between the current macroeconomic environment and the 1988-1989 tightening cycle has increased markedly, and combined with the renewed escalation of the Middle East situation and the rekindling of U.S. inflationary pressures, the logic of cross-asset allocation is quietly changing.
According to news from the Trading Desk, Citigroup Research analysts Alex Saunders and Vinh Vo noted in a report released on September 11 that although their macro model (Regime Model) as a whole remains in the "Normal" range, strengthening inflation momentum, a moderate pullback in the economic surprise index, and a slight tightening of financial conditions are causing the historical analogue period identified by the model to move closer to 1988-1989.
It is worth noting that during the tightening cycle from March 1988 to May/June 1989, the Federal Reserve raised rates a total of 16 times. According to statistics from the team of Sun Binbin at Tianfeng Securities, in March 1988, the Federal Reserve chose to tighten in advance to prevent re-entering high inflation. On March 30, 1988, the FOMC meeting raised the federal funds rate by 25bp to 6.75%, after which it raised rates a total of 16 times, ultimately raising the federal funds rate target to 9.8125%, for a total of 331.25bp in rate hikes.
The typical characteristics of the late 1980s were : the economy maintained resilience, inflationary pressures gradually accumulated, ultimately prompting the Federal Reserve to continue raising rates, and only after economic activity slowed did policy shift to easing. The report also lists 1976-1977, 1996-1997, and 2013-2014 as other reference historical periods.
At the asset allocation level, the above macroeconomic backdrop drove the model to further increase holdings of risk assets and established a clear structural preference: long emerging market and U.S. equities, long Japanese and UK duration, while maintaining the short position in U.S. investment-grade credit at maximum weight, going long commodities with energy as the core, and shifting toward a preference for the U.S. dollar.
1988 to 1989 Tightening Cycle Returns to the Spotlight
"New Fed Wire" Nick Timiraos wrote in his latest article that investors have largely concluded the Fed will raise rates next week for the first time in three years, but the harder question is what happens afterward. Since the 1990s, the Fed has only delivered a "one-and-done" rate hike once.
Citi Research's historical analog analysis also shows that 1988 to 1989 has become notably more prominent this month. The report describes that period as featuring a combination of economic resilience and inflationary pressure—precisely the mix that pushed the Fed to keep tightening monetary policy in 1988 until economic activity slowed the following year, when it pivoted to rate cuts.
This aligns closely with the current macro state. The model shows that growth indicators are modestly improving, the average PMI z-score remains at a strong level, and although the economic surprise index has edged lower, its absolute level remains positive; meanwhile, inflation momentum has picked up over the past month, financial conditions have tightened slightly, and overall conditions remain about 0.55 standard deviations below the long-term average. The report characterizes the current macro state as exhibiting "overheating" symptoms—both growth and inflation indicators are slightly above their long-term averages, but have not yet triggered a model regime switch.
The report also retains three other historical reference periods: 1976 to 1977 (the pre-Volcker era, when disinflation coexisted with accommodative financial conditions, initially supporting equities before inflation and the policy rate rose sharply); 1996 to 1997 (the early phase of the internet expansion); and 2013 to 2014 (when Fed tapering expectations drove a repricing of U.S. rates). Notably, last year's tariff shock no longer constitutes a meaningful historical analog in the latest model, which Citi Research attributes to cross-asset long-term volatility remaining at relatively low levels.
Model Holds Firm in "Normal" Range, Equity Allocation Raised Further
Despite rising market concerns about rate hikes, Citi Research's K-Nearest Neighbors (KNN) model remains in the "normal" range and has not switched to the "tightening financial conditions" range. The report notes that after this month's update, the model further raised its equity overweight from 2.8% to 4.0%, maintained positive allocations to bonds and commodities (though reduced), and kept its short position in credit unchanged.
The report also flags a potential downside path: if the energy shock persists as a sustained theme—whether driven by restocking demand or supply flow disruptions—tightening financial conditions and widening credit spreads could become the transmission chain toward a stagflation scenario.
In terms of historical Sharpe ratio performance under different models, assets in the "normal" range performed in line with unconditional historical averages, with bond attributes holding a slight edge, while US equities showed a certain advantage relative to other regions.
Cross-Asset Allocation: Energy Leads, US Dollar Replaces Yen as Preferred Currency
In terms of specific asset allocation, the Citi Research model presents a highly differentiated structure. On equities, emerging markets received the highest allocation, US equities maintained a small long position, while European, Japanese, and UK equities were shorted.
On rates, bonds were overall overweight by 3.7%, with Japanese and UK duration receiving the largest long allocations, US Treasuries maximally shorted, and European bonds slightly shorted. This allocation logic is partly related to the ECB's hawkish forward guidance following rate hikes and the rising risk premium on French government bonds.
On commodities, energy is currently the asset with the strongest expected performance, with the model concentrated in overweight energy, supplemented by a small long in base metals and a small short in precious metals. The report notes that energy's advantage in the relative carry dimension far exceeds that of other commodity sub-sectors, while the carry for base metals and precious metals is clearly negative.
On foreign exchange, the report notes that market enthusiasm for the yen has clearly faded, with the expected Sharpe ratios for the British pound, Japanese yen, and euro against the US dollar all negative, making the US dollar the current preferred currency. This shift is partly driven by US Treasury Secretary Bessent's remarks on Japanese intervention, as well as weakening momentum following the yen's phased appreciation driven by market expectations for earlier and faster tightening by the Bank of Japan (BoJ).
Trend-Following Strategies Maintain Positive Returns Year-to-Date, Systematic Strategies Show Divergence
From a quantitative strategy performance perspective, trend-following strategies recorded positive returns over the past month, with strong gains in commodities and bonds sufficient to cover equity losses and roughly flat FX contributions. Notably, bond trend-following strategies fully reversed their previous year-to-date negative returns this month, pushing the composite strategy into positive territory overall. Commodities remain the largest year-to-date contributor, while equities have been the weakest performer.
Carry strategies posted positive composite performance over the past month, with commodities and bonds contributing the bulk of gains, while FX and equity carry came under pressure. The report also notes that commodity value strategies have continued to lead year-to-date, but equity and bond value strategies remain in negative territory, with bond value strategies weakening further as renewed escalation in the Middle East drove markets to reprice inflation and policy risks.
In terms of CTA positioning, credit maintained the largest long position, while equity and commodity longs were trimmed to near neutral.
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