Borsa Istanbul Opens Lower: BIST 100 Down 1.32%

The BIST 100 index at Borsa Istanbul opened on September 17, 2026, down 1.32%, falling to 12,948.83 points. The decline in the index appears to be driven by developments in the fund market. On September 16, the BIST 100 index had dropped 5.54%, and margin calls reached 1.76 billion TL, the highest level in three months. These data indicate that selling pressure in the market continues. Investors are closely monitoring developments in the fund market and the increase in margin calls. Not investment advice.

📊 XU100 — Piyasa Yorumu

▼ down · 60%

The BIST 100 index started the day with a 1.32% decline, signaling a negative opening compared to the previous close. Although the RSI at 33 is near oversold territory, the MACD remains below its signal line and negative, indicating weak short-term momentum. The price is trading below both the SMA20 and SMA50, confirming the bearish trend. The news headline supports the current weak technical picture; downward pressure may persist in the 1-3 day horizon. However, oversold conditions could trigger reaction buying, so the possibility of a limited decline should not be overlooked.

RSI 14

33.4

MACD

-280.00

24h Δ

2.09%

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