Turkey and Frontier Stocks: BIST 100, PSX, TASE, Merval — 2026-09-02
Turkey's BIST 100 suffered a sharp 2.10% decline on August 31, continuing a negative trend into early September amid investor caution. In Argentina, the Merval index closed its worst month since February with a 7.8% drop in August, though it rebounded slightly on September 1 as country risk eased from recent highs. Pakistan's KSE-100 faced significant selling pressure on September 2 due to geopolitical tensions involving the US and Iran.
Turkey and Frontier Stocks: BIST 100, PSX, TASE, Merval — 2026-09-02
Top developments
BIST 100 Plunges 2.10% on August 31
The Borsa Istanbul (BIST) 100 index closed at 14,334.06 points on Monday, August 31, marking a significant 2.10% daily decline. The index opened lower at 14,604.26 points and faced sustained selling pressure throughout the session. This drop followed a volatile week, reflecting heightened uncertainty among investors regarding domestic growth data and international market conditions.
Argentina’s Merval Closes Worst August Since February
Argentina's financial markets ended August with their worst performance since February, as the S&P Merval index fell 7.8% for the month. Country risk, measured by the JPMorgan EMBI+ index, surged 19% to reach 512 basis points by the end of the month. However, the Merval saw a modest recovery of 0.51% on September 1, closing at 3,049,455 points, while the peso slipped slightly to 1,513 per dollar.
PSX Drops Over 1,000 Points on Geopolitical Tensions
The Pakistan Stock Exchange (PSX) experienced severe selling pressure on Wednesday, September 2, with the KSE-100 index falling more than 1,000 points during trading hours. The sharp decline was attributed to escalating geopolitical tensions between the United States and Iran, which triggered risk-off sentiment across frontier markets. This follows a mixed start to September, where the index briefly regained the 177,000-point level on September 1 before reversing course.
Argentine Bonds Rally, Country Risk Near 500 Points
On September 2, Argentine sovereign bonds in dollars rose by up to 0.7% in Wall Street trading, helping to lower the country risk index to approximately 501 basis points. This improvement coincided with a slight rise in the S&P Merval and positive movement in most Argentine ADRs. The easing of country risk below the 510-point threshold observed earlier in the week provided some relief after a turbulent August.
Local view
In Turkey, local media outlets like Halk TV and Haberturk highlighted the "sharp drop" (sert düşüş) in the BIST 100, noting that the index fell 112.72 points at the opening of September 2, reaching 14,116.29 points. Investors are reported to be fleeing the exchange (kaçan kaçana), with attention focused on upcoming domestic economic data and global uncertainties.
In Argentina, Infobae and Perfil emphasized that while August was complex with rising country risk, the early September rebound in stocks and bonds offers cautious optimism. Local analysts note that the Merval managed to avoid the downward trend seen on Wall Street on September 1, rising 0.5% despite global oil price volatility.
Context & numbers
- Turkey BIST 100: Closed August 31 at 14,334.06 (-2.10%); Opened September 2 at 14,116.29 (-0.79%).
- Argentina Merval: Closed September 1 at 3,049,455 (+0.51%); Monthly August change: -7.8%.
- Argentina Country Risk: Dropped to ~501 basis points on September 2 from 512 basis points at the end of August.
- Pakistan KSE-100: Fell over 1,000 points on September 2 due to US-Iran tensions; previously hovered near 177,000 on September 1.
- Lira/Peso Rates: Turkish Lira held steady around 47.23 vs USD in late July (latest verified reference); Argentine Peso at 1,513 vs USD on September 1.
On the radar
- US-Iran Geopolitics: Continued monitoring of tensions between the US and Iran is critical for PSX stability, as evidenced by the sharp sell-off on September 2.
- Argentine Treasury Tender: Investors are awaiting results from the Argentine Treasury's debt tender, which influenced the low movement of bonds and stocks in late August.
- TCMB Policy Outlook: While the Central Bank of Turkey kept rates steady at 37% in previous months, market participants are watching for any shifts in monetary policy stance given the recent BIST volatility and inflation trends.
This content was collected, curated, and summarized entirely by AI — including how and what to gather. It may contain inaccuracies. Crew does not guarantee the accuracy of any information presented here. Always verify facts on your own before acting on them. Crew assumes no legal liability for any consequences arising from reliance on this content.
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