Turkey and Frontier Stocks: BIST 100, PSX, TASE, Merval — 2026-09-19
Turkey's BIST 100 index suffered its sharpest drop in four months, falling over 5% on Wednesday amid fund redemption concerns, though it saw a partial recovery later in the week. Argentina's Merval index and country risk premium faced pressure from rising US interest rate expectations, while Pakistan's KSE-100 struggled with Middle East geopolitical tensions before stabilizing.
Turkey and Frontier Stocks: BIST 100, PSX, TASE, Merval — 2026-09-19
Top developments
BIST 100 Suffers Sharpest Drop in Four Months
On September 16, 2026, the Borsa Istanbul benchmark BIST 100 index closed down 5.54% at 13,122.58 points, marking its most significant daily decline since May 21, 2026. The selloff was triggered by an asset manager’s failure to meet redemption requests, which sparked broader liquidity concerns across the Turkish market. In response to the volatility, Turkey's Financial Stability Committee convened urgently, stating that there was no structural risk in the markets and that necessary measures would be implemented. By Friday, September 18, the index had partially recovered but opened lower, with the BIST 30 trading around 16,237 points amid global uncertainty.
Argentina's Country Risk Hits One-Month High
Argentina's financial markets ended the week with losses as the country risk premium (riesgo país) rose to 524 basis points on September 18, its highest level in a month. The S&P Merval index fell 1.3% on Friday, driven by declines in major stocks like YPF and broader pressure from higher US interest rates. Argentine ADRs in Wall Street dropped up to 7%, while sovereign dollar bonds fell an average of 0.5%. The peso remained stable at 1,535 per dollar at the Banco Nación, with the Central Bank of Argentina (BCRA) purchasing $36 million in the market to support reserves.
KSE-100 Volatility Driven by Geopolitics
Pakistan's stock market experienced significant volatility during the week, primarily influenced by escalating tensions in the Middle East. On September 16, the KSE-100 index dropped by approximately 1,371 points due to selling pressure linked to regional instability. The negative trend continued into the following days, with the index losing another 1,400 points on Wednesday as investors reacted to threats regarding oil infrastructure in the Strait of Hormuz region. However, by Friday, September 18, the market showed signs of stabilization with positive movements reported at the start of the trading session.
Local view
Turkish media outlets highlighted the urgency of the government's response to the BIST 100 crash. BBC Türkçe reported that Finance Minister Mehmet Şimşek chaired an emergency meeting of the Financial Stability Committee, emphasizing that authorities would take necessary steps to ensure market stability. Local analysts noted that foreign investors were net buyers in the previous week, purchasing $277.7 million in equities despite the recent turmoil. In Argentina, Infobae analyzed the impact of the US Federal Reserve's potential rate hikes, noting that this has made Argentine debt more expensive and pushed back hopes of returning to international markets.
Context & numbers
- BIST 100: Closed Wednesday (Sept 16) at 13,122.58 (-5.54%). Weekly performance was down 8.18%. Daily transaction volume on Thursday was 266 billion liras ($5.47 billion).
- Merval: Fell 1.3% on Friday (Sept 18). Country risk premium reached 524 basis points. Dollar rate held at $1,535.
- KSE-100: Experienced drops of ~1,371 points on Sept 16 and ~1,400 points on Sept 17.
- TCMB Policy: The Central Bank of the Republic of Türkiye held rates steady for the fifth consecutive meeting on September 10, citing decelerating inflation trends.
On the radar
- Argentine Budget 2027: The City of Buenos Aires is analyzing the 2027 budget proposal, which projects 4% GDP growth, 18% inflation, and a dollar rate of $1,847.6.
- US Fed Outlook: Markets are monitoring the US Federal Reserve for potential further rate increases before year-end, which continues to pressure emerging market currencies and debt costs.
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