Growing concern over a renewed Federal Reserve hiking cycle is pushing investors back toward one historical comparison: 1988 to 1989. Citi Research said in its latest quantitative macro strategy report that the resemblance between today’s backdrop and that late-1980s tightening phase has increased, with rising U.S. inflation pressure and a renewed escalation in the Middle East also reshaping cross-asset allocation views.
According to Zhui Feng Trading Desk, Citi analysts Alex Saunders and Vinh Vo wrote in a Sept. 11 report that the firm’s Regime Model remains in the "Normal" range overall. Even so, firmer inflation momentum, a modest decline in the economic surprise index and slightly tighter financial conditions have pushed the model’s historical analogs closer to 1988-1989.
The 1988-1989 cycle is back in focus
Citi’s report points to a tightening stretch from March 1988 to May or June 1989, when the Fed raised rates 16 times. Data cited from the Sun Binbin team at Tianfeng Securities show that in March 1988, the Fed chose to tighten in advance to prevent another bout of high inflation. On March 30, 1988, the Federal Open Market Committee raised the federal funds rate by 25 basis points to 6.75%. It then delivered 16 hikes in total, taking the federal funds target to 9.8125%, a cumulative increase of 331.25 basis points.
The period is defined by a durable economy and gradually building inflation pressure, which led the Fed to keep tightening until economic activity slowed and policy later shifted toward easing. Citi also listed 1976-1977, 1996-1997 and 2013-2014 as other historical reference windows.
Nick Timiraos, often referred to as the "Fed whisperer," wrote recently that investors have largely concluded the Fed will deliver its first rate hike in three years next week, with the harder question being what happens after that. Since the 1990s, the Fed has had only one "one-off" rate hike, according to the article.
Citi’s historical analog analysis also showed that 1988-1989 became much more prominent this month. The report said that period combined resilient growth with inflation pressure, the same mix that drove the Fed to keep tightening through 1988 before shifting to rate cuts after economic activity weakened the following year.
Model stays in "Normal," but overheating signs are visible
Citi said the current macro picture lines up closely with that historical template. Its model shows growth indicators improving modestly, while the average PMI z-score remains strong. The economic surprise index has edged lower, but its absolute level is still positive. At the same time, inflation momentum has picked up over the past month and financial conditions have tightened slightly, while still sitting about 0.55 standard deviations below the long-run average.
The report describes the present setting as showing symptoms of an "overheating economy": both growth and inflation gauges are a bit above their long-run averages, though not enough to trigger a regime switch. Citi added that last year’s tariff shock no longer serves as a meaningful historical analog in the latest model, which it said reflects relatively low long-run cross-asset volatility.
The report kept three other reference periods in view. The first is 1976-1977, the pre-Volcker era when falling inflation and easy financial conditions initially supported equities before inflation and policy rates later rose sharply. The second is 1996-1997, during the early internet expansion. The third is 2013-2014, when expectations for Federal Reserve tapering drove a repricing in U.S. rates.
Equity overweight rises to 4.0%
Even with market anxiety around more rate hikes building, Citi’s k-nearest neighbors, or KNN, model remains in the "Normal" bucket rather than switching to a "Tighter Financial Conditions" regime. After this month’s update, the firm lifted its equity overweight to 4.0% from 2.8%. Bonds and commodities stayed positively allocated, though both were trimmed, while the short in credit was left unchanged.
The report also flagged a downside path. If the energy shock persists, whether because of restocking demand or disrupted supply flows, tighter financial conditions and wider credit spreads could become the transmission mechanism toward a stagflation scenario.
Looking at historical Sharpe ratios across regimes, asset returns in the "Normal" state are close to unconditional historical averages. Bonds hold a slight edge in factor characteristics, while U.S. equities show some advantage over other regions.
Energy leads the allocation shift, and the dollar replaces the yen
Citi’s cross-asset model shows a sharply differentiated structure. In equities, emerging markets carry the highest allocation. U.S. stocks remain a modest long, while Europe, Japan and the U.K. are positioned as shorts.
In rates, bonds are overweight by 3.7% overall. Japanese and U.K. duration receive the largest long allocations, U.S. Treasuries are held at the maximum short, and European bonds are a modest short. Citi said that logic is tied in part to hawkish forward guidance after the European Central Bank’s rate hike and to a rising risk premium on French government bonds.
In commodities, energy is the strongest expected performer, so the model is heavily overweight there, alongside a small long in base metals and a small short in precious metals. The report said energy’s carry profile is far superior to other commodity sub-groups, while base metals and precious metals both show clearly negative carry.
In foreign exchange, Citi said enthusiasm for the yen has faded noticeably. Expected Sharpe ratios for sterling, the yen and the euro against the dollar are all negative, leaving the dollar as the preferred currency. The shift is partly linked to comments by U.S. Treasury Secretary Bessent on Japan intervention and to weaker momentum after the yen’s earlier strength, which had been driven by expectations that the Bank of Japan would tighten policy earlier and faster.
Trend following stays positive, CTA positioning moves closer to neutral
On the quantitative strategy side, trend-following posted positive returns over the past month. Strong gains in commodities and bonds were enough to offset losses in equities and a largely flat contribution from foreign exchange. One notable detail in the report is that bond trend-following fully reversed its year-to-date losses this month, pushing the composite strategy back into positive territory. Commodities remain the largest contributor for the year so far, while equities are the weakest segment.
Carry strategies also produced a positive aggregate return over the past month, with commodities and bonds contributing most of the gains while FX and equity carry came under pressure. Citi added that commodity value strategies continue to lead on a year-to-date basis, but equity and bond value strategies remain in negative territory. As renewed tension in the Middle East prompted markets to reprice inflation and policy risk, bond value strategies weakened further.
For CTA positioning, credit holds the largest long, while long exposure in equities and commodities has been cut back to near neutral.