Cross Line

The Cross Line (also called a "crosshair line" or "scatter marker") combines a horizontal and a vertical line into a single annotation tool. The intersection marks a specificprice-time coordinate — a unique point on the chart representing a particular value at a particular moment. This is the tool to use when you want to say: "right here, at this exact price and this exact time, something important happened."

Unlike the cursor crosshair (a temporary reference that follows the mouse and disappears when you stop moving), the cross line is a persistent annotation. It remains on the chart across sessions, survives scrolls and zoom changes, and can be exported with chart screenshots. It is the most precise way to bookmark a specific event — a trend line break, a new all-time high, a gap fill, a V-bottom reversal — anchoring the observation to a unique coordinate in the two-dimensional price-time space.

In trading journaling and post-mortem analysis, the cross line is invaluable. A screenshot with a cross line at the entry bar tells the complete story: "I entered at this price on this day." The arms provide immediate context — the horizontal arm shows the S/R level context, and the vertical arm shows the temporal position within the broader chart structure.

The Cross Line tool requires 1 anchor point — the intersection. Click directly on the bar or price level where you want the cross. Both arms are placed simultaneously: the horizontal arm at the clicked price level and the vertical arm at the clicked bar index. From a single click, the full cross appears.

After placement, drag the intersection point (the center where both lines cross) to move both arms together to a new price-time coordinate. Drag the horizontal arm up or down to change only the price level while keeping the bar index fixed. Drag the vertical arm left or right to change only the bar position while keeping the price fixed. Each arm extends to both chart edges independently. Hold Shift while dragging the horizontal arm to snap to nearby round numbers.

Each arm can be styled independently, allowing you to distinguish the price arm from the time arm at a glance. On hover, the intersection point shows an enlarged circular handle. The arms highlight individually when hovered. In multi-select mode, selected cross lines move together.

The cross line offers independent styling for each arm, allowing you to use different colors for the price (horizontal) and time (vertical) dimensions.

Event Bookmarking: The cross line is the most concise annotation tool for trading journals and post-mortem analysis. A screenshot with a cross line at the entry bar tells the complete story: entry price, entry date, and the surrounding S/R context, all in a single visual element.

Breakout Verification: Place a cross line at the breakout bar — the bar where price closed beyond a trend line, horizontal level, or pattern boundary. The horizontal arm shows the breakout price level; the vertical arm identifies the exact breakout date. This creates a permanent, unambiguous record of the breakout point for future reference and review.

Confluence Identification: When a Fibonacci extension target, a dynamic trend line, and a horizontal S/R level all converge at the same point, place a cross line there. The intersection of three independent analytical tools creates the highest-confluence trade setup. The cross line visually confirms that multiple methodologies agree on the same level.

1. 1
   Identify the target price-date coordinate

   Find the specific bar and price level that form the significant point — the entry, the breakout, the market structure extreme.
2. 2
   Click at the target intersection point

   Click directly on the bar at the desired price. Both arms are placed instantly at that (date, price) coordinate.
3. 3
   Fine-tune the intersection

   Drag the intersection point to adjust both arms simultaneously. Hold Shift to snap the horizontal arm to round numbers.
4. 4
   Style the arms

   Set independent colors for each arm — a distinct color for price vs. time. Enable the intersection marker for emphasis.
5. 5
   Add labels

   Enable the price label on the horizontal arm and the date label on the vertical arm for full context.

The cross line is a two-dimensional bookmark. It connects the "what" (price) with the "when" (time) in a single annotation. Every time you see a cross line on a chart, ask: "What made this exact moment significant?"

• The intersection is the key: everything before it led to that point; everything after is a consequence.
• The horizontal arm shows how price related to that level before and after the event \u2014 S/R context.
• The vertical arm shows the time context: session start, news release, structural break boundary.
• A cross line at a breakout point captures both the level and the timing simultaneously in one annotation.
• When used in trading journals, the cross line replaces paragraphs of description about entry timing and price.
• A cluster of cross lines at similar levels across different dates highlights a repeatedly significant price zone.

Multi-Instrument Synchronization: Place cross lines on correlated instruments at the same time coordinate (same vertical arm position). Compare the horizontal arms across instruments: which ones held support and which broke? The instrument that holds its level while others break is showing relative strength — a potential long candidate.

Pattern Completion Marker: When a chart pattern completes (head and shoulders neckline break, triangle breakout, double top/bottom confirmation), place a cross line at the confirmation bar. This creates a permanent, timestamped record of the exact moment of confirmation, which is invaluable for post-trade analysis and pattern-performance research.

Trade Review Grid: For every trade in your trading history, place a cross line at entry and another at exit. Over time, the grid of cross lines across the chart tells the visual story of your trading journey: entry timing quality, exit discipline, and the S/R levels that were most active during your trading period.

• 1.Cross line tool — TradingView Help
• 2.Support and Resistance Basics — Investopedia
• 3.Technical Analysis of Financial Markets — John J. Murphy
• 4.Trading Journal Best Practices — TradingSim
• 5.How to Analyze Your Trades — Investopedia
• 6.Chart Annotation Tools Guide — StockCharts