Deep Analysis

1. Market Summary and Overview

As of Tuesday, October 20, 2026, at 12:27, the BIST 30 (XU030) index is trading at 14.303.28, showing a +0.57% gain compared to the previous close (14.221.62); the BIST 100 (XU100) is at 11.498.25, up +0.60% from the previous close (11.430.14). The dollar-based XU030 performance stands at +0.63% due to the exchange rate adjustment effect. USD/TRY is at 49.49, with a slight decline of -0.06% from the previous close (49.52), while global risk appetite is supported by the VIX falling to 18.44 (a -7.75% decline). At yesterday's close, XU030 saw a sharp selling pressure of -2.31% and XU100 -2.49%; today's recovery is technical in nature, and since we do not have volume data, a definitive judgment on the persistence of this move cannot be made, but given the bank-heavy index structure, buying interest in Garanti BBVA and Yapı Kredi is pulling the index up, while selling pressure in the high-weight stocks İş Bankası, Akbank, Vakıfbank, and Koç Holding keeps the index's upside limited. On the macro front, Turkey-specific inflation data for September 2026 came in at 29.73% annually (TÜİK approved), with the policy rate held at 37.0%; in the US, the Fed rate is 4.0%, and in the Eurozone, the ECB rate is 2.65%. Brent oil is declining to 109.39 USD/barrel, and gold to 4.158 USD/ounce. Portfolio performance since the start date (06.09.2026) is at -12.34%, with a daily performance of -1.57%, remaining below all benchmark criteria (USD, Gold, Deposit, XU100, XU030).

Index Dynamics and Divergence

XU030's relatively smaller decline compared to XU100 (daily +0.57% vs +0.60%) shows that the index's banking weight is supported by today's selective buying, but a similar recovery also applies to the broad market (XU100). The index's return from 14.221.62 (yesterday's close) to the 14.300 band points to a scenario where the 14.000 psychological support was tested and rejected. However, the 14.550 (previous close from the day before) resistance has not yet been reclaimed.

Macro Background and Liquidity

Real interest rates in Turkey remaining in negative territory (Inflation 29.73%, Rate 37.0% -> Real ~5.6%) continues to limit the attractiveness of TL assets. The CBRT keeping the policy rate unchanged at the September meeting and market pricing not including early rate cut expectations cause foreign portfolio inflows to remain limited. The high level of US 10-year Treasury yields (5Y 4.93%, 30Y 5.47% in the data set) increases the opportunity cost for emerging market assets.

2. Sector-Based Evaluation

Banking: A Two-Speed Structure

The sector accounts for nearly half of the index weight. Garanti BBVA (bank) ( 132.5 TL, +0.76%) and Yapı Kredi (bank) ( 36.0 TL, -0.28%) stand out as names attracting foreign buying interest, giving "BUY" signals with their technical structures and oscillators. In contrast, İş Bankası (company) (12.78 TL, -0.62%), Akbank (company) ( 66.5 TL, -0.97%) and Vakıfbank (bank) ( 32.26 TL, -0.86%) are in a deep distribution phase with "STRONG SELL" signals. This divergence makes it difficult for the index's banking component to establish a clear direction; however, the relatively higher price levels and foreign ownership ratios of Garanti and Yapı Kredi show that the impact of these two stocks on the index is positive today.

Aviation & Transportation: Divergence Under TAVHL Leadership

TAV Airports ( 279.5 TL, +2.01%) is the sector's only "strong buy" candidate with both technical scan (Short=BUY, WT=BUY, Channel 86%) and oscillator (STRONG BUY, RSI 58.5, MACD +) data. Although its approach to the upper channel band (86%) creates an overbought risk in the short term, the Pearson correlation of -0.20 indicates positive momentum independent of the index. Turkish Airlines ( 267.5 TL, +0.56%) and Pegasus (company) ( 127.9 TL, +0.16%) is in a deep correction with a 60-day performance of -16% to -20%; THYAO shows a strong downtrend in oscillators with RSI 32.6, ADX 38, while PGSUS with RSI 27.6 is in oversold territory seeking a technical bottom (WT=BUY AT BOTTOM) but the trend has not yet broken.

Holdings: Distribution Continues

Sabancı Holding (company) ( 86.5 TL, +1.11%) gives a WT=BUY signal, but the EMA alignment (Short=HOLD, Medium/Long=SELL) and oscillator (SELL, MACD -1.26) structure are not trending upward. Koç Holding (company) ( 200.4 TL, -1.23%) is "STRONG SELL" in both data sets. The widening of NAV discounts in holdings and expectations of slowing operating performance keep sellers in the market.

Energy & Petrochemicals: Complex Picture

Tüpraş (company) ( 359.0 TL, +0.63%) looks strong with a 60-day performance of +24.5%, but the technical scan is "SELL" (Short=SELL, WT=SELL), oscillator "SELL" (RSI 37.7, MACD -5.48, CCI -194). Channel 3% level (lower band) and Pearson 0.64 (high correlation with the index) show the decline is synchronized with the index. Enka İnşaat (company) (76.4 TL, +0.99%), Astor Energy (165.3 TL, +2.93%), Petkim (company) ( 19.51 TL, +0.83%) all carry downside risk with "STRONG SELL" or "SELL" signals.

Retail, Metals, Telecom, Automotive, Defense, Chemicals: Broad Selling Pressure

BİM (376.75 TL), Migros (company) ( 457.25 TL) the retail pair approaches oversold with RSI 35.8 and 28.7 respectively, but ADX values (22 and 43) indicate trend strength; catching the bottom is premature. Ereğli Demir Çelik (company) (35.92 TL), Kardemir (company) (41.2 TL), TR Anadolu Metal (company) ( 120.2 TL) the metal trio is trending downward with weak global steel prices and domestic demand. Turkcell (company) (95.6 TL), Turk Telekom ( 50.05 TL) the telecom pair is under steady selling. Tofaş (company) (232.6 TL), Ford Otosan (company) ( 67.05 TL) strong downtrend in automotive with ADX >25. Aselsan (company) ( 326.5 TL) technical structure deteriorated while defense spending on the agenda (RSI 37.5, MACD -11.1). Sasa (company) (1.68 TL), Gübre Fabrikaları (company) (359.25 TL), Petkim (company) deep declines in the chemical sub-sector.

3. Technical Visual Analysis

EMA Alignments and Wave Trend Alignment

Only among the 30 stocks in the dataset TAVHL, GARAN, YKBNK " Short Term = BUY" signal. These three stocks also give a "BUY" signal on the Wave Trend (WT) oscillator, confirming that short-term momentum is upward. SAHOL WT=BUY but EMA alignment (Medium/Long=SELL) pushes this signal towards "false bottom" probability. PGSUS WT="BUY AT DIP" but EMA turns exactly opposite (All SELL), so this signal should be evaluated as a high-risk "falling knife" catching attempt.

Regression Channel Positions (Channel %) and Pearson Correlation (r)

TAVHL Channel 86% is trading at the upper bound (even outside) of the regression channel. This indicates that the price is in a statistically "expensive" region, and that there is a high probability of a pullback toward the channel average (approximately the 50% level) in case of any profit-taking. Pearson r = -0.20 indicates that this move occurred with an index-independent, idiosyncratic (stock-specific) purchase.

GARAN Channel 60%, slightly below the upper band; weak positive relationship with index at r = 0.22. YKBNK Channel 39%, around the channel average; moderate positive relationship with index at r = 0.45. These two banks tend to move with the index but not as extremely as TAVHL.

TUPRS Channel 3% (lower band), r = 0.64. Price clinging to the lower channel, falling with high correlation to the index. TOASO Channel %-14, FROTO Channel %-9, BIMAS Channel %-10 negative values indicate a break below the channel's lower band, meaning the trend is at a very strong and abnormal level. In these stocks, the logic of "below channel = buying opportunity" is dangerous; one should stay away until the trend breaks.

Diverging Stocks

TAVHL ( r=-0.20) and PGSUS ( r=-0.81) shows inverse or very weak correlation with the index. TAVHL diverging positively (opportunity), PGSUS diverging negatively (risk). SAHOL ( r=-0.22) shows a weakening tendency as the index rises.

4. Oscillator and Momentum Readings

RSI and MACD Synchronization

Only TAVHL (RSI 58.5, MACD +0.66), GARAN (RSI 54.0, MACD +0.47), YKBNK (RSI 51.0, MACD +0.07) The trio above RSI 50 and MACD positive. This shows that the uptrend momentum has started healthily. In all other stocks MACD negative; RSI usually in 30-50 band (downtrend) or below 30 (oversold).

Stochastic and CCI Overbought/Oversold Warnings

GARAN StochK 83.87 and CCI 100.73 with in overbought region. Probability of a short-term technical pullback is very high. TAVHL StochK 74.64, CCI 109.54 also approaching overbought threshold. YKBNK StochK 73.38, CCI 32.62 with Stochastic risky, but CCI still in safe region.

Oversold Region (Risky Bottom Fishing): MGROS ( RSI 28.7, StochK 5.7, CCI -164, ADX 43), ASTOR ( RSI 29.7, StochK 9.5, CCI -116, ADX 36), SASA ( RSI 28.2, StochK 7.3, CCI -146, ADX 30), PGSUS ( RSI 27.6, StochK 13.2, CCI -113, ADX 41), FROTO ( RSI 26.5, StochK 5.0, CCI -203, ADX 34), TOASO ( RSI 30.0, StochK 8.2, CCI -177, ADX 25). In these stocks, ADX > 25 (mostly >30) shows that the trend is very strong, while RSI/CCI/Stochastic give a "dip" signal but the price may fall further (since the trend continues, oscillators can remain oversold for months).PGSUS The only exception WT="DİPTE AL" provides weak agreement among oscillators but MACD -5.58 keeps main trend still down.

ADX Trend Strength Filter

ADX > 25 "Strong Trend", ADX < 20 "Weak Trend/Sideways".
Strong Downtrend (ADX > 25, DI- > DI+): MGROS (43), PGSUS (41), GUBRF (41), THYAO (38), ENKAI (37), ASELS (32), TOASO (25), FROTO (34), KCHOL (29), TUPRS (29), AKBNK (29), SISE (28).
Weak Trend / Sideways: TAVHL (13), GARAN (17), YKBNK (15), VAKBN (13), ISCTR (16), PETKM (10), EKGYO (14), TTKOM (15), KRDMD (13), EREGL (11), TRALT (34 - strong downtrend).
Conclusion: TAVHL, GARAN, YKBNK have low ADX (13-17), trend not yet strengthened; this creates "early buying" opportunity but also carries fake breakout (fakeout) risk. In other stocks, strong downtrend is confirmed.

5. Risk Map and Scenarios

Base Scenario (Probability ~55%): Consolidation and Selective Rotation

XU030 trades sideways in 14.200 - 14.450 range. Profit taking comes in Garanti, Yapı Kredi, TAVHL, index's banking component becomes balancing. Holdings (SAHOL, KCHOL) and high-weight banks (ISCTR, AKBNK, VAKBN) prevent index from challenging above 14.550 with selling pressure. USD/TRY stays in 49.40 - 49.60 band. For portfolio: Partial profit taking in existing long positions (especially TAVHL approaching channel upper band), selective and small positions for new entries.

Optimistic Scenario (Probability ~25%): 14.550 Break with Foreign Flow

If USD/TRY pulls below 49.543 (Central bank intervention or global dollar weakening), foreign buying concentrates on Garanti/Yapı Kredi. XU030 breaks 14.550 (yesterday's previous close) resistance with volume, 14.800-15.000 targeted. TAVHL tests 290-300 band.Condition: XU030 staying above 14.550 at daily close AND USD/TRY falling below 49.30.

Pessimistic Scenario (Probability ~20%): Global Risk-Off and 14.000 Test

US PPI/CPI data (upcoming week) or Fed hawkishness (if rate projections rise for 2027) pushes DXY above 103. If VIX rises above 20. XU030 breaks 14.200 support, 14.000 psychological level tested. In banking, "STRONG SELL" signaled trio (ISCTR, AKBNK, VAKBN) pulls index down. TAVHL makes sharp correction from channel top (280+) (channel average ~250-260).Condition: XU030 below 14.200 daily close OR USD/TRY above 49.70 close.

Split Strategy (Pair Trade / Relative Value)

Long TAVHL / Short XU030 (or Short THYAO): TAVHL's negative correlation with index (-0.20) and strong momentum make it suitable as long leg in an index-neutral strategy. THYAO's strong downtrend (ADX 38) and high beta may be risky but rewarding for short leg.
Long GARAN/YKBNK / Short ISCTR/AKBNK: Differentiation trade within banking. Garanti/Yapı Kredi foreign preference, İş Bankası/Akbank local/selling pressure. Sector net position neutral, alpha generation attempted.

Levels to watch

• XU030: Resistance 14,550 (yesterday's close) -> 14,800 (psychological/technical). Support 14,200 (today's open/yesterday low) -> 14,000 (psychological/200-day MA estimate - no data but critical).

• USD/TRY: Resistance 49.60 -> 49.80. Support 49.30 -> 49.00.

• TAVHL: Resistance 285-290 (Channel upper/psychological). Support 270 (Channel middle/20-day EMA estimate).

• GARAN: Resistance 134-135 (Previous peak). Support 130 (Channel middle/psychological).

• YKBNK: Resistance 36.50 (Channel upper). Support 35.00 (Channel middle/psychological).

6. Recommended Stocks for the Day

The table below, Technical Scan in its data "Short Term = BUY" VE Wave Trend = BUY VE TradingView Oscillator Recommendation = BUY or STRONG BUY consists of the intersection set of stocks that have. ONLY TAVHL, GARAN, YKBNK meet these criteria. Other stocks (SAHOL WT=BUY but Trend=SELL; PGSUS WT=BUY AT BOTTOM but Trend=SELL/Oscillator=SELL) are excluded.