TCMB Holds Rates Steady as Global Markets Focus on US-Iran Deal

The Central Bank of the Republic of Turkey (TCMB) Monetary Policy Committee (MPC) decided to keep the one-week repo auction rate, its policy rate, constant at 37% during its meeting on June 11, 2026. This decision largely aligned with market expectations, as the committee also maintained the overnight lending rate at 40% and the borrowing rate at 35.5%. The TCMB's stance reinforced its message that a tight monetary policy will be sustained until price stability is achieved.

The rationale behind the MPC's decision highlighted that the underlying trend of inflation, which increased in April after rising in the early months of the year, showed a slight decline in May. However, the committee emphasized that volatility and elevated levels in energy prices persist due to geopolitical developments. The MPC maintained its cautious approach, stating that the monetary policy stance would be tightened in the event of a significant and permanent deterioration in the inflation outlook.

On the global stage, a historic peace agreement between the United States and Iran, or a memorandum of understanding set to be signed on June 19, 2026, in Switzerland, became the primary focus of markets. Reports of this agreement, particularly the expectation of the reopening of the Strait of Hormuz, significantly impacted oil prices. The role of former US President Donald Trump in this deal and expectations for a ceasefire across all fronts, including Lebanon, boosted global risk appetite.

Markets experienced volatile movements in light of these developments. The Dolar/TL exchange rate saw a 0.18% increase, trading at 46.44 TL, while the Euro/TL fell by 0.51% to 53.21 TL. The gold market also showed activity; gram gold retreated by 0.81% to 6,293 TL, while spot gold prices showed signs of recovery after a decline following a previous Fed interest rate decision. Brent crude oil prices, however, slipped below the $90 support level.

In a broader economic and political context, the G7 Summit, which commenced in Évian, France, was also on the agenda for global leaders. Discussions at the summit covered topics such as the global economy, trade wars, tariffs, and China's growing influence. The regional and global implications of the US-Iran agreement were also among the key issues debated by G7 leaders.

Analysts and market expectations suggest that optimism in the markets could continue if the US-Iran agreement is signed and implemented. However, warnings are also issued that it is too early for sustained optimism, given the fragile nature of geopolitical risks in the Middle East and past ceasefire violations. The TCMB's continued tight monetary policy stance and ongoing global uncertainties necessitate caution for investors in the period ahead.