Borsa Istanbul's BIST 100 index gained 335.49 points to open at 78,675.88 on Wednesday after rising 1.7 percent Tuesday.

The BIST 100 index rose 0.43 percent while the banking and holding sectors' indices advanced by 0.54 percent and 0.41 percent, respectively.

Among the sector indices, the mining sector advanced the most with a 1.06 percent rise, while the leasing and factoring sector index fell most with a 0.66 percent decline.

The U.S. dollar/Turkish lira exchange rate, which was at 3.1015 by the time markets closed Tuesday, stood at 3.0960 early Wednesday.

On Tuesday, the local fixed income markets were relatively flat. The two-year benchmark bond was traded within a tight range of 8.94 percent-9.00 percent, ending at the day at a high of 9.00 percent, unchanged from its Monday's close.