Borsa İstanbul's BIST 100 index started the day at 12,052.94 points, down 65.35 points, or 0.54%, from the previous close.
The index, which followed a sales-led course yesterday, ended the session at 12,118.29 points after losing 1.08%.
As of 10:00 a.m., the dollar/TL exchange rate stood at 49.4175, the euro/TL rate at 55.5250 and the pound/TL rate at 65.6055. At the same time, spot gold was trading at $4,138.60 per ounce, while Brent crude was priced at $104.55 per barrel.
Sector indexes
At the opening, the banking index lost 0.56%, while the holding index declined 0.80%.

Mining was the top-performing sector index, rising 0.39%. Financial leasing and factoring recorded the steepest decline, falling 6.09%.
Global markets under watch
Accelerating inflation in the United States strengthened expectations that the U.S. Federal Reserve could raise interest rates. Sharp declines in technology stocks also increased selling pressure in global markets.

Data to watch
Weekly money and banking statistics will be monitored domestically. Abroad, industrial production in the euro area, U.S. retail sales, the New York Fed Empire State Manufacturing Index, weekly jobless claims and the Producer Price Index will be tracked.
Technically, 12,000 and 11,900 points stand out as support levels for the BIST 100 index, while 12,200 and 12,300 points are resistance levels.