Deep Analysis

1. Market Summary and Overview

As of 17:05 on Friday, October 16, 2026, the BIST 30 index (XU030) is trading at 14.628.66, experiencing a loss of -2.39% compared to the previous close. The BIST 100 index (XU100) has declined to 11.777.89 points, showing similar weakness with -2.42%. In dollar terms, XU030's daily performance has fallen to -2.62%, indicating that the loss in TL terms was softened by exchange rate movements, but the loss is felt more deeply from the perspective of foreign investors. While USD/TRY is trading at 49.52, it has recorded a limited daily increase of +0.24%.

The overall mood of the day is that a bearish trend dominates in almost all technical data. According to screening results, 24 of the 30 stocks generated "STRONG SELL" signals and 5 generated "SELL" signals, while TAV Airports (TAVHL) is assessed as "NEUTRAL." This distribution points to the presence of widespread profit-taking or risk aversion across the index. In particular, intense selling pressure in banking stocks (VAKBN -3.17%, ISCTR -2.06%, GARAN -1.87%, YKBNK -1.93%, AKBNK -2.13%) has been decisive in the index's downward movement. A similar picture is observed in holding companies; KCHOL -3.03% and SAHOL -0.23% tend to close the day on the negative side.

Looking at sector rotations, selling pressure is seen across a wide spectrum, from defense industry (ASELS -1.35%) to telecommunications (TTKOM -1.82%, TCELL -0.66%), from energy (TUPRS -2.54%, PETKM -2.65%) to retail (BIMAS -3.99%, MGROS -3.09%). Among the sharpest declines of the day, ASTOR's loss of -9.61% stands out, followed by TRMET -5.16% and GUBRF -4.44%. This picture reveals that there is a general contraction in risk appetite in the market and that investors tend to take cautious positions.

On the macro side, Turkey's September annual inflation coming in at 29.73% and monthly inflation remaining below expectations (2.3%) at 1.84% has provided some relief ahead of the CBRT's interest rate decision on October 22, yet expectations that the policy rate will be kept steady at 37.0% are strengthening. However, inflation in the US rising to 3.7% and PPI accelerating to 5.4% stand out as factors suppressing global risk appetite. Inflation in the Eurozone rising to 3.8% has a similar effect. In light of these developments, it can be said that external factors are as influential as domestic dynamics in the intraday course of BIST 30.

2. Sector-Based Evaluation

The banking sector stands out as one of the weakest sectors of the day. VAKBN -3.17%, ISCTR -2.06%, GARAN -1.87%, YKBNK -1.93%, and AKBNK -2.13% are spending the day in negative territory. From a technical signals perspective, VAKBN gives a HOLD signal in the short and medium term while maintaining a BUY signal in the long term, but the Wave Trend indicator warns in the SELL direction. In ISCTR, SELL signals exist across all timeframes, and the overall assessment is coded as SELL. Although GARAN produces HOLD signals in the short-medium-long term, its overall outlook is assessed as SELL. In oscillator data, GARAN's RSI remains in neutral territory at 52.07, while StochK approaching overbought territory at 87.73 is noteworthy. In VAKBN, CCI20 entering oversold territory at -129.3 may indicate that reaction buying could come in the short term. However, ADX values remaining low across the sector (VAKBN 11.6; GARAN 19.56) show that the strength of the current trend is limited.

Energy & Petrochemicals

In the energy sector, TUPRS -2.54% and PETKM -2.65% are following a bearish course. TUPRS's 60-day performance of +25.4% shows that it is subject to profit-taking following a strong rally. Short-term SELL, medium-term HOLD, and long-term BUY signals reveal that the stock's long-term trend has not deteriorated, but it is experiencing a correction in the short term. The Wave Trend SELL signal and channel position at 9% indicate that the price is approaching the lower regions of the regression channel. In PETKM, the 60-day loss has reached -10.1%, with SELL signals dominating in the short and medium term. The ADX value being quite low at 10.5 shows that the trend in PETKM is weak and direction uncertainty persists. ASTOR stands out as the stock experiencing the sharpest decline of the day at -9.61%; its 60-day loss has reached -43.6%. Although RSI entering oversold territory at 28.26 brings the possibility of a technical rebound in the short term, ADX pointing to a strong downtrend at 35.17 suggests that such a rebound could remain limited.

Metal & Mining

In the metals sector, KRDMD -3.86%, TRMET -5.16%, and EREGL -2.94% are closing the day with losses. KRDMD's 60-day performance points to a limited loss of -2.1%, while giving a short-term SELL and medium-term HOLD signal. In TRMET, the 60-day loss has reached -10.9%, and RSI is in the sell zone at 38.79. EREGL's 60-day loss of -16.1% represents one of the weakest performances in the sector. EREGL's Pearson correlation coefficient being -0.67 shows that the price is moving in the opposite direction to the regression channel and that the current decline is not consistent with the channel structure. ADX values across the sector remain at low-to-medium levels (KRDMD 12.31; TRMET 18.28; EREGL 9.98), indicating limited trend strength.

Aviation & Transportation

In the aviation sector, TAVHL is trading in positive territory at +1.01% as one of the most resilient stocks of the day. TAVHL's 60-day performance of +6.2% presents a strong outlook, while producing short-term BUY and medium/long-term HOLD signals. While the Wave Trend indicator warns in the BUY direction, the channel position at 64% shows that the price is trading in the upper regions of the regression channel. RSI is neutral at 52.7, and ADX at 13.65 points to weak trend strength. In contrast, THYAO -1.26% and PGSUS -1.16% are spending the day on the negative side. THYAO's Pearson value of -0.88 points to a quite strong negative correlation, while in PGSUS this value is -0.81. In both stocks, RSI values are approaching oversold territory at 35.38 and 27.29, respectively, but high ADX values (THYAO 34.68; PGSUS 38.02) show that the downtrend is strong.

Retail & Food

In the retail sector, BIMAS -3.99% and MGROS -3.09% rank among the weakest sectors of the day. While BIMAS's 60-day performance is +2.0%, it has a short-term SELL signal, and the Wave Trend warns in the SELL direction. The channel position at -14% shows that the price has slipped below the lower band of the regression channel. In MGROS, the 60-day loss has reached -26.9%, and RSI has settled firmly in oversold territory at 25.81. MGROS has one of the strongest negative correlations in the dataset with a Pearson value of -0.90. AEFES is closing the day with a loss of -2.55%, with its 60-day loss reaching -15.2%. Selling pressure continues in the Food & Beverage sector as well.

3. Technical Visual Analysis

EMA Alignments and Trend Structure

According to technical screening data, short-term EMA alignments are in the sell direction for most stocks. While 19 of the 30 stocks have short-term SELL signals, only TAVHL has a BUY signal. This shows that short-term moving averages are trading above the price across the index and that momentum is in negative territory. In medium-term EMAs, 14 stocks have SELL signals, revealing that the correction is not merely a short-term fluctuation and that the medium-term trend is also beginning to weaken. In long-term EMAs, the situation is more balanced: 10 stocks have BUY, 12 have HOLD, and 8 have SELL signals. This distribution shows that the index's long-term uptrend has not yet completely deteriorated, but downward pressure is increasing.

Wave Trend and Regression Channel Positions

The Wave Trend indicator produces SELL signals in all stocks except TAVHL and GARAN. The presence of a BUY signal in TAVHL shows that this stock is positively diverging from the others. In GARAN, although the Wave Trend gives a BUY signal, the overall assessment is coded as SELL; this contradiction reveals that the stock's short-term momentum is positive, but other technical indicators do not support this view. Looking at regression channel positions, TAVHL is trading in the upper region of the channel at 64%, while BIMAS at -14% and TOASO at -7% have slipped below the lower band of the channel. ENKAI at -3% and FROTO at -3% are in a similar position. Stocks that slip below the lower band of the channel can statistically be considered in oversold territory and may carry mean reversion potential in the short term. However, this situation also brings the risk that the price may remain below the channel if the trend continues.

Pearson Correlation Analysis and Diverging Stocks

Pearson correlation coefficients measure the compatibility of price movements with the regression channel. Positive and high values (VAKBN 0.74; TUPRS 0.73) indicate that the price moves in harmony with the channel structure, while negative and high values (MGROS -0.90; THYAO -0.88; PGSUS -0.81; ASTOR -0.80) indicate that the price moves in the opposite direction of the channel. In this context, price movements in MGROS, THYAO, PGSUS and ASTOR deviate from the predictions of the regression channel, and this deviation occurs in the selling direction. On the other hand, the Pearson value for TAVHL is neutral at -0.15, and the price is trading at 64% of the channel; this suggests that the stock is adapting to the channel structure and that the current positive momentum is sustainable. As for GARAN, the Pearson value is low positive at 0.22, and the channel position is at a medium level of 51%; this indicates that the price is balanced in the middle of the channel.

4. Oscillator and Momentum Readings

RSI Assessment

RSI indicators reveal that a widespread oversold condition has formed in the market. MGROS 25.81, PGSUS 27.29, ASTOR 28.26 and SASA 29.42 are trading below the 30 level. Although these values bring up the possibility of a technical rebound in the short term, it should be remembered that in strong downtrends, the RSI can remain in the oversold zone for a long time. FROTO 30.4 and ENKAI 33.75 are other stocks approaching the oversold zone. On the other hand, GARAN 52.07 and TAVHL 52.7 are trading in the neutral zone and exhibit a relatively more resilient outlook. While VAKBN 46.11 and ISCTR 47.88 are in the lower-neutral zone, YKBNK is neutral at 48.72. The RSI distribution shows that selling pressure continues across the index, but oversold conditions have formed in some stocks.

MACD and Momentum

MACD indicators are in the negative zone for most stocks. GUBRF -17.06, ASTOR -25.89 and MGROS -17.66 are the stocks with the deepest negative MACD values. This indicates that momentum is quite weak in these stocks and selling pressure continues. ASELS -8.0 and TOASO -7.58 are other stocks drawing attention. There are only two stocks with positive MACD values: GARAN 0.22 and VAKBN 0.15. However, although the MACD is positive for VAKBN, other indicators generate SELL signals; this contradiction suggests that momentum is weakening and that the MACD may pull back toward the zero line. For TAVHL, the MACD is very close to the zero line at -0.01, and this level points to the potential for momentum to change direction.

Stochastic and CCI

Stochastic indicators show a concentration in the oversold zone. MGROS 1.59, FROTO 4.29, PGSUS 5.48, THYAO 7.73 and GUBRF 8.12 are trading below the 10 level. These values point to strong rebound potential in the short term. TOASO 7.39 and ENKAI 7.24 are in a similar position. On the other hand, GARAN is approaching the overbought zone at 87.73, while YKBNK 73.79 and ISCTR 70.17 are trading at high levels. In the CCI20 indicator, deepening is observed in the oversold zone with THYAO -229.55, MGROS -218.74 and FROTO -208.33. VAKBN -129.3, KCHOL -130.89 and TOASO -166.78 are other stocks approaching this zone. CCI values being at such low levels increases the probability of a rebound movement in the short term.

ADX and Trend Strength

ADX values provide important information regarding trend strength. SAHOL 38.95, MGROS 39.53, GUBRF 38.87, PGSUS 38.02 and ASTOR 35.17 are the stocks with the highest ADX values. These values show that the current downtrends are quite strong and that it may still be too early for a trend reversal in these stocks despite oversold conditions. THYAO 34.68, ENKAI 34.96 and FROTO 30.83 are other stocks exhibiting strong trends. On the other hand, low ADX values for EREGL 9.98, PETKM 10.5, VAKBN 11.6 and EKGYO 11.8 indicate that the trend is weak in these stocks and that the price is moving within a horizontal band. In stocks with low ADX values, the reliability of existing SELL signals may be limited, and the price may unexpectedly change direction.

5. Risk Map and Scenarios

Upside Scenario

For the index to recover from current levels, selling pressure in banking stocks must first decrease. GARAN's Wave Trend indicator generating a BUY signal and the RSI remaining in the neutral zone at 52.07 could be a leading signal of a short-term recovery in the banking sector. Additionally, TAVHL's positive divergence and daily increase of +1.01% indicate that a buying trend continues in the aviation sector. Led by these two stocks, it is possible for the index to encounter buying interest at the 14.628.66 level and initiate a move toward the previous closing level of 14.986.78. However, for this scenario to materialize, a technical rebound must begin in the oversold stocks (MGROS, PGSUS, ASTOR, SASA) and this rebound must strengthen with volume support.

Downside Scenario

If the current selling pressure on the index continues, new lows may be tested below the 14.628.66 level. In particular, ASTOR's decline of -9.61% and its 60-day loss reaching -43.6% indicate a serious loss of confidence in the energy sector. Similarly, MGROS having a 60-day loss of -26.9% and a Pearson value of -0.90, the strongest negative correlation in the data set, points to the possibility of a deepening decline in the retail sector. Continued selling pressure in these stocks could cause the index to fall below the psychological level of 14.000. Additionally, the rise in US inflation to 3.7% and the acceleration of PPI to 5.4% could continue to negatively affect global risk appetite, and this could slow capital flows toward emerging markets.

Split Strategy and Levels to Watch

Under current market conditions, it may be beneficial for investors to divide their positions into three main groups. The first group may include stocks such as TAVHL that are positively diverging and have strong technical signals; existing positions in these stocks can be maintained or small additions can be made. The second group includes stocks such as GARAN that generate Wave Trend BUY signals but have an overall SELL outlook; caution should be exercised in these stocks and existing positions should be reduced. The third group includes stocks such as ASTOR, MGROS and PGSUS that are in the oversold zone but have strong downtrends; rather than opening new positions in these stocks, it would be more appropriate to wait for trend reversal signals. On an index basis, the 14.400 and 14.200 support levels should be monitored below 14.628.66. On the upside, the previous closing level of 14.986.78 should be watched as the first resistance, and if this level is exceeded, the 15.200 and 15.400 levels may come into play.

6. Recommended Stocks for the Day

According to technical screening and oscillator data, BUY signals are generated only for TAVHL and GARAN. The table below presents scenario analyses for these two stocks.