In Borsa Istanbul, the BIST 100 index dropped by 0.26 percent in the first half of the day, falling to 9,372 points. Moving in a downward trend in the first half of the day, the BIST 100 index declined to 9,372 points by 13:00, with a decrease of 24.36 points and 0.26 percent compared to the previous close. The total trading volume reached 33.3 billion Turkish liras. The banking index lost 0.58 percent, while the holding index lost 0.25 percent. Among the sector indices, mining recorded the highest gain with 0.85 percent, while forestry, paper, and printing suffered the most loss with 1.43 percent. While the initiation of negotiation processes on the tariffs that the US applies on a reciprocal basis increased optimism in the global markets, markets in the US and Europe would remain closed today due to holidays. Analysts noted that the data agenda would be quiet domestically and internationally today, stating that technically, the levels of support for the BIST 100 index are at 9,300 and 9,200, while the resistance is at 9,450 and 9,550 points.