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Turkey’s BIST 100 index fell 2.03% at the close of trading in Istanbul on Wednesday, October 7, as losses in leasing and factoring, technology, and metal products and machinery weighed on the market. The decline was broad: 513 stocks fell, 123 advanced and eight ended unchanged, according to Investing.com’s session report.
The report identified Aselsan Elektronik Sanayi ve Ticaret as the index’s weakest performer, while Turkiye Sigorta led the listed gainers. The market data describe the day’s price movements but do not establish what triggered the selling; no specific cause was reported.
Losses spread across the market
The difference between falling and rising shares pointed to pressure beyond a small group of index constituents. The session tally showed more than four declining stocks for every advancing one, alongside weakness in three named industry groups: leasing and factoring, technology, and metal products and machinery.
The BIST 100 is a benchmark for major companies listed in Istanbul, so its close provides a headline measure of large-cap performance. But the wider advance-decline count captures a broader slice of market activity, and on Wednesday it showed declines were substantially more numerous than gains.
Aselsan among the steepest fallers
Aselsan shares dropped 7.25%, or 27.25 points, to close at 348.75, making the defence and electronics company the worst performer among the stocks highlighted in the report. 1000 Yatirimlar Holding fell 7.18% to 5.69, while TR Dogal Enerji Kaynaklari Arastirma ve Uretim lost 6.45% to finish at 90.65.
The figures represent individual share performance during the session and do not, by themselves, indicate the reason for the declines. The report did not attribute the moves to company announcements or provide company-specific explanations.
Turkiye Sigorta tops the gainers
Turkiye Sigorta rose 6.15%, or 0.32 points, to close at 5.52, the strongest gain among the BIST 100 stocks named by Investing.com. Akfen Yenilenebilir Enerji added 3.63% to end at 3.71, and Tekfen Holding advanced 3.08%, or 8 points, to 268.00.
Those gains offered exceptions to the session’s broad negative breadth, but the reported advances were not enough to offset the larger number of declining shares. The source provided selected stock movers rather than a full breakdown of index contributions, so it does not quantify how much each company added to or subtracted from the benchmark.
Currency and commodities also moved
In currency trading, the report put the U.S. dollar at 49.20 Turkish lira, up 0.05%, while the euro fell 0.61% to 55.07 lira. The U.S. Dollar Index futures rose 0.51% to 102.13.
Among commodities cited in the report, December gold futures fell 1.40% to $4,128.67 per troy ounce. November crude oil was reported down 0.07% at $89.38 a barrel, while December Brent rose 0.80% to $101.38 a barrel. These figures provide a snapshot of other markets during the report’s pricing window; the source did not connect their moves to the BIST 100 decline.
What the session data establish
Wednesday’s close establishes a daily fall in the benchmark, broad negative market breadth and marked differences between individual stocks. It does not establish whether the move represents a change in a longer-term trend, nor does the report identify a catalyst or provide a forecast.
The next relevant measure will be the index’s subsequent trading, alongside any company or economic developments that might help explain market direction. The available report did not specify a scheduled event expected to resolve the uncertainty around Wednesday’s decline.
