Constructing support, resistance, trendlines, and price channels

Construction order first

The archive examples start from price meetings that reverse, then draw a line through those meetings. A line's claimed significance is tied to how often price touches it and then reverses. After a break, the same figure or a new diagonal can be redrawn and tested again.

Editorial interpretation: teach that construction order first. Cluster reversal touches into a line, score that line by how often price meets it and turns, then rebuild the same geometry after a break as a reversed level, a diagonal trendline, or a parallel channel. The next test is a hypothesis that can fail.

What support and resistance mean

Support is buying, actual or potential, large enough to stop further decline for a time. Resistance is the matching selling that stops further advance for a time.

A support level is the price where buyers can temporarily halt or reverse a downtrend. A resistance level is where sellers can temporarily halt or reverse an uptrend.

Editorial interpretation: support and resistance here means a horizontal price zone where concentrated buying can stall a decline or concentrated selling can stall an advance. After a break, the same zone can flip role and be reused.

A resistance area that later held declines

On one daily chart, a 27 1/2 area rejected three advances. After a later break, the same figure held three subsequent declines.

That ceiling is attributed to leftover buyers from near 30 who used rallies toward 27 1/2 to cut a roughly 15% loss, until remaining sell orders thinned and price pushed through.

Editorial interpretation: the later holds at the same figure are a role reversal. Broken resistance is redrawn as support and then retested from the opposite side.

Scoring a line by how often price turns

A second daily example shows a 34 1/2 line stopping five successive declines before price later closed through it.

A line's claimed significance is tied to how often price touches it and then reverses. The 34 1/2 example is counted at no fewer than seven such reversals.

Editorial interpretation: that tally is the touch count, the number of distinct meetings where price reaches a drawn line and then reverses. More reversals raise the line's claimed significance.

Support drawn on a diagonal

A rising line from the lowest low through the last minor low before the period high contained price until a close sat on the line and the next session broke it. The example shows that support can be drawn diagonally.

Editorial interpretation: a trendline is a diagonal support or resistance line drawn through successive swing lows in an advance, or successive swing highs in a decline, and extended forward until price closes through it.

The same level tested from the other side

After that break, the former 34 1/2 support was tested from below during the following month and functioned as resistance.

Editorial interpretation: role reversal also runs the other way. Broken support is redrawn as resistance and then retested from the opposite side.

Parallel lines after the uptrend failed

After the uptrend failed, a declining line through the swing high and a later high, plus a parallel through the break-day close, framed later swings as a downward price channel.

Editorial interpretation: a price channel is a pair of parallel diagonal lines that contain later swings after a trend break, so price is read as bouncing between one support wall and one resistance wall.

Lines as alerts, not certain rebound points

The drawn lines are presented as alerts for zones that need closer study with other tools, not as certain predictors of when or where price will rebound.

Editorial interpretation: keep the next test falsifiable. If price does not meet the rebuilt line and turn, the hypothesis fails and the geometry is redrawn or dropped.