The BIST 100 index closed lower on Wednesday, shedding 1.36% to settle at 13,501.55 points.
The decline erased 186.31 points from the previous session's close, marking a broad-based retreat across Turkish equities.
5 billion lira, indicating active participation in the downturn.
Selling pressure was concentrated in the financials, with the banking index falling sharply by 3.17%.
In contrast, the holding index managed a modest gain of 0.34%, providing limited support to the broader market.
Total trading volume reached 173.5 billion lira, indicating active participation in the downturn.
The move reflects continued volatility in emerging market equities, with sector-specific risks driving divergence within the Turkish market.