A Line Drawn From the Chart Itself
A trendline on a P&F chart is a 45-degree diagonal line drawn from a specific point on the chart — a prior low or a prior high — that acts as a reference path going forward. Unlike a line you'd draw by eye on a normal chart, a P&F trendline follows the fixed geometry of the box grid, so it moves up or down by exactly one box for every column.
Only Two Types
QuantLogIQ draws exactly two kinds of trendlines, and every chart shows one or both depending on what the price has recently done:
- Bullish Trendline — a rising support line, drawn upward from a low point after a bullish breakout. See the dedicated guide for this one.
- Bearish Trendline — a falling resistance line, drawn downward from a high point after a bearish breakdown. See the dedicated guide for this one.
Why Trendlines Matter
A trendline gives you a simple visual test: is the current price above or below the line? Price holding above a bullish trendline suggests the uptrend is intact; price breaking below it is often read as an early warning sign. The same logic applies in reverse for a bearish trendline.
Toggle Them On Any Chart
On the fund/stock chart page and in the Compare tool, you can choose to show bullish trendlines only, bearish trendlines only, or both — useful when you want to focus on just the support story or just the resistance story for an investment.