GARAN 131.50 TL ▼ -1.79%TUPRS 375.50 TL ▼ -2.34%ISCTR 12.89 TL ▼ -1.60%SAHOL 85.30 TL ▼ -0.06%VAKBN 32.86 TL ▼ -3.58%BIMAS 381.00 TL ▼ -5.11%YKBNK 35.70 TL ▼ -1.65%KCHOL 204.00 TL ▼ -3.27%EKGYO 19.04 TL ▼ -3.84%KRDMD 41.26 TL ▼ -3.96%PETKM 19.71 TL ▼ -3.10%AKBNK 66.85 TL ▼ -1.69%TRMET 120.00 TL ▼ -6.18%TOASO 244.40 TL ▼ -0.77%TTKOM 50.90 TL ▼ -2.68%ASELS 340.25 TL ▼ -3.06%GUBRF 372.75 TL ▼ -5.51%TAVHL 270.50 TL ▼ -0.18%TRALT 41.30 TL ▼ -3.64%ENKAI 76.20 TL ▼ -2.06%SISE 36.16 TL ▼ -2.95%FROTO 69.30 TL ▼ -2.05%TCELL 96.80 TL ▼ -1.07%SASA 1.73 TL ▼ -3.35%EREGL 36.26 TL ▼ -3.05%AEFES 17.50 TL ▼ -3.15%ASTOR 164.90 TL ▼ -9.99%PGSUS 127.70 TL ▼ -1.31%THYAO 273.50 TL ▼ -1.17%MGROS 452.25 TL ▼ -3.78%16.10 19:54 · end-of-day closeGARAN 131.50 TL ▼ -1.79%TUPRS 375.50 TL ▼ -2.34%ISCTR 12.89 TL ▼ -1.60%SAHOL 85.30 TL ▼ -0.06%VAKBN 32.86 TL ▼ -3.58%BIMAS 381.00 TL ▼ -5.11%YKBNK 35.70 TL ▼ -1.65%KCHOL 204.00 TL ▼ -3.27%EKGYO 19.04 TL ▼ -3.84%KRDMD 41.26 TL ▼ -3.96%PETKM 19.71 TL ▼ -3.10%AKBNK 66.85 TL ▼ -1.69%TRMET 120.00 TL ▼ -6.18%TOASO 244.40 TL ▼ -0.77%TTKOM 50.90 TL ▼ -2.68%ASELS 340.25 TL ▼ -3.06%GUBRF 372.75 TL ▼ -5.51%TAVHL 270.50 TL ▼ -0.18%TRALT 41.30 TL ▼ -3.64%ENKAI 76.20 TL ▼ -2.06%SISE 36.16 TL ▼ -2.95%FROTO 69.30 TL ▼ -2.05%TCELL 96.80 TL ▼ -1.07%SASA 1.73 TL ▼ -3.35%EREGL 36.26 TL ▼ -3.05%AEFES 17.50 TL ▼ -3.15%ASTOR 164.90 TL ▼ -9.99%PGSUS 127.70 TL ▼ -1.31%THYAO 273.50 TL ▼ -1.17%MGROS 452.25 TL ▼ -3.78%16.10 19:54 · end-of-day close
BIST 30 (TRY) 14,986.78 ▼ -0.41%BIST 100 (TRY) 12,070.17 ▼ -0.40%Gram Gold 6,668.90 TLDollar 49.4835 TL ▲ +0.16%BIST 30 ($) 302.86 $ ▼ -0.56%16.10 08:18 · end of day / delayedBIST 30 (TRY) 14,986.78 ▼ -0.41%BIST 100 (TRY) 12,070.17 ▼ -0.40%Gram Gold 6,668.90 TLDollar 49.4835 TL ▲ +0.16%BIST 30 ($) 302.86 $ ▼ -0.56%16.10 08:18 · end of day / delayed
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Weekend Market School

2026-10-17Lesson 11/26 • Technical Analysis • Fictional AI instructor
Trend Line — ASTOR (actual closes)ASTOR — actual close datatime →PriceRising trend line
Figure: How to draw a trend line? — ASTOR actual close data (last 120 trading days)

Today's Lesson: How to draw a trend line?

Hello friends, welcome to the Weekend Stock Market School! ✏️ Today we will learn the simplest yet most powerful tool of the chart: the trend line. Grab your coffee, we're starting.

1. What is it?

Think of it this way: Someone climbing a staircase steps each step higher than the previous one. The railing, leaning against the edge of that staircase shows the direction of the climb at a glance. The trend line is the railing on the chart.

Clear definition: A trend line is a line connecting at least two, ideally three significant lows or highson the chart.

2. Why is it important?

3. How to Read / Use?

Let's take it step by step:

  1. Look at the big picture. First, read the sequence of peaks and troughs. Are the troughs rising, are the peaks falling, or is it mixed?
  2. Choose two meaningful points. Use the troughs and peaks that are "turning points" on the chart, not the sharp spikes at the extremes.
  3. Draw consistently. Always pass the line through the wick ends or always through the closes; do not mix the two.
  4. Wait for the third touch. If the price touches the line a third time and reacts, the line is now considered "valid".
  5. Evaluate the breakout with the close. Touching with the wick is not meaningful; closing the day beyond the line is more significant.
  6. Pay attention to the slope. Very steep lines break easily; healthy trends usually have a "livable" slope.

📌 Extra reading: Some platforms give you two auxiliary data points:

4. Real Example

Let's read these values with today's three active stocks:

The key point of the lesson: There is a daily decline in all three stocks, but none of the trends are the same. Don't look at a single day; the r value and the dip-peak sequence are always read together.

5. Common Mistakes

6. Mini Test

Question 1: In an uptrend, which points do we connect to draw the trend line?

Answer: Successively rising lows. The line runs below the prices and acts as dynamic support.

Question 2: If a stock's r value is -0.80, what does that tell you?

Answer: - Strong negative correlation close to 1; the price is in a declining, linear path. The trend line candidate would be a line drawn from above connecting the peaks , as in today's ASTOR example.

Question 3: If a stock falls 9.99% in a single session, can we say the trend is broken?

Answer: By itself no. The trend is the product of multiple troughs and peaks. For evaluation, the relationship with the line, the close, and the confirmation of subsequent sessions are considered.

7. Summary

This lesson is for educational purposes, not investment advice.

Practice with real data: The table below comes from today's technical scan — you can click on a cell to see the name/formula bar, and sort by clicking on column headers.

📊 TECHNICAL-SCAN.XLSXreal BIST technical scan2026-10-16
—
forex
Click on a cell…
1StockLast (TL)Daily %60-Day %Channel %Correlation rSignal
ASTOR164.90-9.99% ▼-43.84%19%-0.80STRONG SELL
TRMET120.00-6.18% ▼-11.83%-4%-0.03STRONG SELL
GUBRF372.75-5.51% ▼-10.84%10%-0.16STRONG SELL
BIMAS381.00-5.11% ▼+0.80%-21%+0.57STRONG SELL
KRDMD41.26-3.96% ▼-2.23%-1%+0.37STRONG SELL
EKGYO19.04-3.84% ▼+2.26%22%+0.42STRONG SELL
MGROS452.25-3.78% ▼-27.41%21%-0.90STRONG SELL
TRALT41.30-3.64% ▼-14.95%18%-0.38STRONG SELL
VAKBN32.86-3.58% ▼+8.66%9%+0.74STRONG SELL
SASA1.73-3.35% ▼-35.69%24%-0.67STRONG SELL
KCHOL204.00-3.27% ▼+3.24%2%+0.49STRONG SELL
AEFES17.50-3.15% ▼-15.71%50%-0.76STRONG SELL
PETKM19.71-3.10% ▼-10.49%23%+0.29STRONG SELL
ASELS340.25-3.06% ▼-10.52%19%-0.16STRONG SELL
EREGL36.26-3.05% ▼-16.22%52%-0.68STRONG SELL
SISE36.16-2.95% ▼-16.72%25%-0.59STRONG SELL
TTKOM50.90-2.68% ▼-5.74%21%-0.12STRONG SELL
TUPRS375.50-2.34% ▼+25.63%10%+0.73SELL
ENKAI76.20-2.06% ▼-14.19%-9%-0.46STRONG SELL
FROTO69.30-2.05% ▼-12.28%-5%-0.61STRONG SELL
GARAN131.50-1.79% ▼+4.37%52%+0.22NEUTRAL
AKBNK66.85-1.69% ▼-1.11%14%+0.27STRONG SELL
YKBNK35.70-1.65% ▼+7.01%31%+0.51STRONG SELL
ISCTR12.89-1.60% ▼-0.23%33%+0.42SELL
PGSUS127.70-1.31% ▼-20.98%-3%-0.81STRONG SELL
THYAO273.50-1.17% ▼-12.34%16%-0.88STRONG SELL
TCELL96.80-1.07% ▼-6.65%41%-0.66STRONG SELL
TOASO244.40-0.77% ▼-13.02%-8%-0.05STRONG SELL
TAVHL270.50-0.18% ▼+4.92%53%-0.17STRONG SELL
SAHOL85.30-0.06% ▼-2.07%26%-0.13SELL
Technical ScanSource: data/technical/2026-10-16.json
30 record7 columnAvg. daily: -2.93%Most active: ASTOR -9.99%Click on column header to sort
Cell values are taken from the real technical scan dated 2026-10-16 (BIST 30). Channel %: position of the price within the 60-day range • r: Pearson correlation. For educational purposes, not investment advice.

Previous lessons: October 11, 2026, Sunday October 10, 2026, Saturday October 4, 2026, Sunday October 3, 2026, Saturday September 27, 2026, Sunday September 26, 2026, Saturday

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