BIST 100 in the Wake of Rate Decisions: 13,900 Support and Investor Psychology

Borsa Istanbul's BIST 100 index concluded the trading session with a decline of 61 points, illustrating a limited pullback as expectations were largely priced in following the Central Bank of the Republic of Turkey's (CBRT) interest rate decision.

Pre-Weekend Risk Aversion and Geopolitical Uncertainty

Investors' reluctance to take on risk ahead of the weekend has emerged as a factor amplifying short-term market volatility. Alongside this cautious stance, potential negative news flows stemming from geopolitical developments carry the risk of reinforcing existing selling pressures in the markets.

■Trend towards profit-taking before the weekend in investor psychology.

■Risk of selling pressure intensifying due to rising geopolitical risk perception.

■Necessity of closely monitoring global risk appetite in the short term.

Technical Thresholds: Bollinger Bands and Moving Averages

Within the framework of technical analysis, the levels determining the index's direction are becoming clearer. The 13.900 level, where the lower Bollinger band passes, is marked as a vital support point for the index in the short term. Conversely, for the upward trend to be re-established, it is deemed essential for the index to sustain permanence above the 14.100 level, where the 60-day moving average is located.

■Support zone: 13.900 (Lower Bollinger Band).

■Resistance zone: 14.100 (60-day Moving Average).

■Condition for trend reversal: Breaking above the 14.100 level.

Our algo-trading models and quantitative data underscore the importance of the support the index receives from Fibonacci retracement levels at 13.900. As the index seeks equilibrium by entering the Ichimoku cloud, a breakout above the 14.100 resistance is expected to trigger a liquidity surge; conversely, dips below 13.900 may activate stop-loss levels.