Turkey's main stock index ended the trading day lower on Monday, with the BIST 100 down 1.57% at the close in Istanbul. The drop was broad-based, with the Chemical, Petroleum & Plastic, Telecoms and Insurance sectors among those weighing on the index.
On the winners' board, Destek Finans Faktoring As (IS:DSTKF) finished the session up 3.44% or 27.50 points, closing at 827.50. Gen Ilac ve Saglik Urunleri Sanayi ve Ticaret AS (IS:GENIL) gained 2.82% or 3.40 points to end at 123.90. Batisoke Soke Cimento Sanayi TAS (IS:BSOKE) rose 2.49% or 0.68 points to finish at 28.00 in late trade.
The session's steepest declines were led by Turk Altin Isletmeleri AS (IS:TRALT), which fell 9.89% or 5.40 points to close at 49.20. Anadolu Metal Madencilik Isletmeleri AS (IS:TRMET) dropped 7.94% or 11.40 points to finish at 132.10, while GurSel Turizm Tasimacilik Ve Servis Ticaret AS (IS:GRSEL) declined 7.17% or 27.25 points to end at 353.00.
Market breadth was negative on the Istanbul Stock Exchange as falling issues outnumbered advancers by 338 to 243, with 27 stocks unchanged at the close.
Notably, shares of Batisoke Soke Cimento Sanayi TAS (IS:BSOKE) reached a 52-week high during the session, closing up 2.49% or 0.68 to 28.00.
Commodities saw declines across several contracts. Gold Futures for April delivery slipped 0.99% or 47.09 to trade at 4,698.01 a troy ounce. In energy markets, the March crude oil contract fell 4.88% or 3.18 to $62.03 a barrel, while the April Brent contract dropped 4.67% or 3.24 to $66.08 a barrel.
On the foreign exchange front, the USD/TRY rate inched up 0.01% to 43.48. The EUR/TRY pair moved lower, falling 0.34% to 51.36. Meanwhile, US Dollar Index Futures were higher, up 0.57% at 97.42.
Market context and implications
The session's sectoral declines - particularly in Chemical, Petroleum & Plastic, Telecoms and Insurance - were the primary contributors to the BIST 100's retreat. While a subset of stocks posted gains, including a 52-week high for Batisoke Soke Cimento, the overall market breadth favored decliners by a substantial margin.
Movements in commodity prices and the US Dollar Index futures suggest contemporaneous pressure in energy and precious metals markets, which coincided with the equity downturn. Currency pairs involving the Turkish lira showed modest directional moves during the session.