Turkey Markets Crash 6% With Circuit Breaker Triggered as Court Voids Opposition Leader

Turkey's Borsa Istanbul 100 index crashed 6.1% on May 21, 2026, after an Ankara court voided the results of the main opposition party's 2023 congress, effectively removing CHP leader Ozgur Ozel and reinstating former leader Kemal Kilicdaroglu. A market-wide circuit breaker was triggered, and five-year credit default swaps surged.

The Ankara appeals court annulled the Republican People's Party's 2023 congress, voiding the election of Ozgur Ozel as party chairman and automatically restoring Kilicdaroglu — who lost the 2023 presidential race to President Erdogan — as leader. All CHP decisions made since the 2023 congress were also cancelled. The ruling deals a further blow to efforts to secure the release of Istanbul Mayor Ekrem Imamoglu, the party's designated 2028 presidential candidate, who has been jailed since March 2025.

Political Context — Systematic Opposition Dismantling

Erdogan's government has detained hundreds of CHP figures since the 2024 elections, including leaders of major cities. Imamoglu faces the possible cancellation of his university diploma, which could disqualify him from the 2028 ballot. The ruling creates internal CHP divisions that could hamper the party's coordination ahead of elections — potentially scheduled earlier than 2028.

Turkey is a trickier position than before.

Guillaume Tresca, Emerging Market Strategist, Generali Asset Management

Market Impact — BIST -6.1%, CDS Surges

• Borsa Istanbul 100 (BIST 100): -6.1%, triggering a market-wide circuit breaker
• 5-year credit default swaps: +19 basis points to 261 bps (sovereign risk elevated)
• Turkish lira: 45.6133 per USD — little changed but with near-depleted reserves
• TRY carry trade risk appetite: significantly deteriorated per Generali AM strategist

The lira's relative stability masks the underlying vulnerability. Turkey has already sold virtually all of its US Treasury holdings in March to defend the lira following the outbreak of the Iran war, liquidated much of its gold reserves, tightened lira liquidity, raised the cost of lira funding, and directed state-run banks to intervene in currency markets.

Iran War Fallout and Foreign Capital Flight

The ruling landed while Finance Minister Mehmet Simsek and Central Bank Governor Fatih Karahan were in London courting foreign investors — an ironic juxtaposition. Both have worked to restore Turkey's credibility with international capital markets since 2023, but foreign investor appetite has deteriorated sharply since the arrest of Imamoglu in 2025. David Austerweil, emerging-markets deputy portfolio manager at Van Eck Associates, said: "While the central bank still has enough reserves to maintain the current policy framework, the buffer is wearing thin." The political ruling adds new pressure on Turkish assets and raises the probability of a sharper lira devaluation.