On Saturday, January 1, 1994, the People's Bank of China unified the dual exchange rate system that had governed the renminbi since the early reform period. The official rate of 5.80 yuan per dollar and the swap-market rate of approximately 8.70 yuan per dollar were merged into a single rate of 8.70. The unification represented a roughly 50 percent depreciation of the official rate. It also represented something more structurally consequential: the formal end of the multiple-rate framework that had constrained renminbi internationalization since the 1979 reform-and-opening began. The PBOC, under Governor Dai Xianglong, had executed the unification after months of preparation. State Council approval had been secured in November 1993. The IMF had been consulted. The structural premise was that single-rate trading would support continued export expansion and capital inflow. The premise proved correct: by 1995, renminbi-denominated trade flows had begun expanding meaningfully.

This Desk has watched the renminbi's trajectory across the three decades since with the patience the structural picture rewards. On Tuesday, September 30, 2025, the Bank for International Settlements published the 2025 Triennial Central Bank Survey results. The survey reported that the renminbi reached 8.5 percent of global FX turnover in April 2025 — the highest share in the currency's history within the BIS measurement framework. Trading in USD/CNY had risen 59 percent from the 2022 survey level. The renminbi had moved decisively into the second tier of internationally traded currencies behind the US dollar, ahead of most other Asian and European currencies.

Reading the 2025 result against the milestones of the trajectory — January 1, 1994 unification, July 21, 2005 peg break, August 11, 2015 devaluation, and the 2020-2025 deepening — reveals what specific institutional changes produced the position the renminbi now holds.

The 2025 BIS Triennial Result: What the Numbers Specifically Show

The 2025 BIS survey reported global FX turnover at $9.6 trillion daily for April 2025, up 28 percent from the $7.5 trillion of April 2022. The survey methodology samples FX market activity at 1,300+ banks across 52 jurisdictions during the April reference month. Specific currency findings:

USD/CNY trading volume specifically rose 59 percent from 2022 levels. USD/CHF rose 60 percent. USD/HKD rose 95 percent. The combined Asia-Pacific currency growth materially outpaced overall market growth.

FX swaps remained the largest instrument category at $4 trillion daily (5 percent above 2022). FX spot rose 42 percent. FX outright forwards rose 60 percent. The instrument-mix shift toward forwards and spot, combined with currency-mix shift toward Asian currencies, reflects the broader internationalization of FX activity beyond traditional G10 cross-trades.

For the renminbi specifically, the 8.5 percent share represents a roughly 12-fold increase from the 0.7 percent share recorded in the 2010 BIS survey — fifteen years to multiply trading share by an order of magnitude.

January 1, 1994: The Unification

The historical reference point requires specific reconstruction.

Before unification, China operated a dual exchange rate system that had emerged from the late-1980s reforms. The "official rate" of 5.80 yuan per dollar applied to permitted trade flows and was significantly overvalued relative to market clearing levels. The "swap rate" of approximately 8.70 yuan per dollar applied to market-determined enterprise FX transactions through the Foreign Exchange Adjustment Centers established in 1986.

The dual system produced inefficiencies. Exporters faced effective taxation through the official rate when forced to convert export earnings at 5.80. Importers benefited from artificially cheap dollars at the official rate. Capital flows were constrained by the institutional barriers between the two rate windows.

The January 1, 1994 unification merged the rates at 8.70 — effectively adopting the swap rate as the official rate. The PBOC began regular intervention to manage the unified rate within a narrow band. State Council approval, IMF consultation, and PBOC operational preparation had occupied the second half of 1993.

The immediate effects:

The structural significance: the unification was the precondition for everything that followed. Internationalization could proceed only once the multiple-rate friction was removed.

July 21, 2005: The Peg Break

The second milestone arrived eleven and a half years later.

Through 1994-2005, the renminbi was effectively pegged to the US dollar at approximately 8.27-8.28 within a narrow band. The peg had been a source of substantial international friction — particularly during the 1997-1998 Asian financial crisis (when other Asian currencies depreciated sharply while the renminbi held at 8.28) and through the early 2000s as US-China trade deficits expanded.

By 2005, US Congressional pressure on China's exchange rate had reached operational salience. The Schumer-Graham bill threatened 27.5 percent tariffs on Chinese imports unless the renminbi appreciated. US Treasury under John Snow had been pursuing diplomatic resolution. China's PBOC under Zhou Xiaochuan had been planning a managed transition.

On Thursday, July 21, 2005, after market close in Beijing, the PBOC announced:

By 2008, the renminbi had appreciated to approximately 6.83 per dollar — roughly 21 percent appreciation from the July 2005 starting point. The pace was managed, deliberately gradual, and continuous through the 2007-2008 period.

The 2008 financial crisis temporarily froze the trajectory at 6.83. The renminbi held effectively flat through July 2010, reflecting Chinese authorities' assessment that crisis conditions warranted exchange rate stability.

The structural significance of July 21, 2005: the formal break from peg framework opened the path to internationalization. Renminbi-denominated cross-border trade began expanding through the late-2000s. Hong Kong renminbi deposits grew from negligible levels to substantial holdings. The 2010 establishment of the offshore renminbi (CNH) market in Hong Kong followed directly from the post-2005 framework.

August 11, 2015: The Devaluation

The third milestone arrived ten years after the peg break.

Through 2010-2015, the renminbi had appreciated further toward approximately 6.05-6.10 per dollar by mid-2015. The currency was widely considered overvalued by market participants. Capital was flowing out of China at substantial pace as expectations shifted. PBOC reserves had been rising for years but began drawing down.

On Tuesday, August 11, 2015, before market open, the PBOC announced a 1.9 percent devaluation in the daily reference rate. By August 13, the cumulative devaluation reached approximately 4.4 percent. The framework adjustment was characterized as a move toward more market-determined rates — the daily fix would now incorporate previous-day market closing rates rather than purely PBOC-determined.

The market response was sharp. CNY-CNH spread widened dramatically. Capital outflow accelerated. PBOC reserves dropped from $3.99 trillion in mid-2014 to $3.05 trillion by late 2016 — a $940 billion decline as the central bank intervened to support the currency through the volatility.

The framework adjustment that started August 11, 2015 was managed through a series of further calibrations:

By 2025, the renminbi was trading approximately 7.20-7.30 per dollar, having weakened from the 2015 starting point but stabilized within the managed framework.

The structural significance of August 11, 2015: the PBOC demonstrated willingness to use exchange rate as policy instrument while preserving the framework architecture. The episode also revealed the cost of internationalization — the framework had to accept market-driven volatility that the pre-2015 system had suppressed.

The 2020-2025 Deepening

The fourth phase of the trajectory: deepening within the established framework.

Through 2020-2025, several specific developments expanded renminbi trading share without producing major framework adjustments:

The cumulative effect: renminbi share in international payments and trading rose continuously without requiring major framework adjustments. The institutional infrastructure built since 1994 supported the deepening.

What 2026 Inherits and What Comes Next

The 2026 renminbi position reflects the cumulative trajectory. The 8.5 percent FX turnover share, the 4.7 percent SWIFT share, the $4 trillion CIPS volume, the bilateral swap network, the offshore CNH market — all are products of incremental institutional change since 1994.

The trajectory ahead operates under specific constraints:

The likely path through 2026-2030: continued deepening of trading share within the established framework rather than transformative regime change. The 8.5 percent share could plausibly rise to 10-12 percent by the next BIS Triennial in 2028 if current trajectories continue. Reserve currency share — currently 2-3 percent of allocated foreign reserves — could rise toward 4-5 percent over similar horizon.

The 1994 unification, 2005 peg break, and 2015 devaluation represent the three regime-defining moments. The 2025-2030 period is more likely to produce continued evolution within the post-2015 framework than a fourth regime moment.

What This Desk Tracks Through 2026

Three datapoints across the rest of 2026 against the trajectory.

PBOC reference rate management around US-China trade developments. Specific tariff or trade-policy shifts could produce reference-rate volatility that tests the framework. Material reference-rate changes would signal either policy adjustment or framework stress.

CIPS volume growth and bilateral swap line activations. Continued expansion supports renminbi internationalization trajectory. Stagnation or contraction would signal counter-trend pressure.

Offshore-onshore CNY-CNH spread behaviour. Wide spreads have historically signaled market positioning against PBOC framework. Tight spreads support framework credibility. The spread is a continuous diagnostic of the framework's market reception.

Honest Limits

This Desk reads the renminbi historical record from publicly available PBOC archives, BIS quarterly reviews, IMF Article IV consultations, contemporary reporting in WSJ, FT, Reuters, Bloomberg, Caixin, and substantial economic literature on Chinese exchange rate policy. The 2025 figures cited reflect BIS Triennial Survey data and current Reuters/Bloomberg market data through early May 2026. Specific predictions about renminbi trajectory reflect conditional reasoning rather than forecasts. Renminbi positioning carries specific operational and regulatory considerations that warrant qualified consultation.

Sources