Borsa Istanbul Buyback Storm: Tera Portföy Moves on BIGEN

Corporate and institutional buying on Borsa Istanbul is sending critical signals to market makers and investors. Data disclosed to the Public Disclosure Platform (KAP) on July 27, 2026, reveals the conviction of boards of directors and major portfolio firms in their stocks, while the intensification of buyback programs specifically raises expectations of supply-side contraction and strengthening of price floors.

Management Calibration and Buyback Pressure

Boards of directors have accelerated buyback operations, delivering a strong message that stocks are trading below their intrinsic value in current market conditions. These moves may signal bottom-accumulation processes frequently seen in technical analysis.

■TRALT radically changed its liquidity structure by executing a massive operation, pulling 5,000,000 shares from the market in the 48.04 – 48.32 TL price range.

■BORSK bought back 750,000 shares in the 6.14 – 6.32 TL band, while ARSAN added 800,000 shares to its treasury at 3.44 – 3.45 TL levels.

■MEPET and EKIM signed off on similarly volumed buybacks at 200,000 shares, creating price supports in the ranges of 20.00 – 20.98 TL and 21.34 – 21.68 TL, respectively.

■BIMAS and BALAT sustained buying pressure with more limited volumes of 60,000 shares (381.00 TL) and 9,085 shares (7.50 TL), respectively.

Insider Purchases and Corporate Strategy

Chairmen of the board strengthening their personal portfolios and strategic position changes by major players like Tera Portföy provide clues about the medium-term trajectory of stocks.

■ATSYH Board Chairman Süleyman Yıldırım proved his confidence in the company's future by purchasing 23,161 shares in the 103.30 – 104.00 TL band, raising his stake in the company capital to 1.04%.

■Tera Portföy executed a massive purchase in BIGEN, increasing its stake in the capital to 7.36% by acquiring 42,469,924 shares.

■In TRHOL, however, Tera Portföy preferred a reduction strategy; against 1,529,801 shares sold, it bought only 6,250 shares, reducing its ratio to 19.60%.

When observing through Ichimoku clouds and moving averages, these voluminous buybacks can trigger an acceleration of short-term upward price momentum, particularly in stocks like TRALT and BIGEN. With supply contraction, we foresee a rapid exit from oversold zones in RSI indicators. Insider purchases create a strong "confidence index" for the stocks.