Funding Chart
The chart is the centerpiece of ticker analysis. It displays historical funding rates (APR %) with a separate line for each exchange.
Core Elements
Exchange Lines
Each exchange is rendered in its own unique color (27+ distinct colors for all supported exchanges). The line type is stepAfter — funding rates appear as staircase steps because the rate remains constant between settlement periods (every 1h or 8h depending on the exchange).
Toggle Buttons
Above the chart there is a button for each exchange. Click a button to:
- Hide that exchange's line from the chart
- Show a previously hidden line
At least one exchange must remain visible. This is particularly useful when the chart has many overlapping lines and you want to focus on specific exchanges.
Period Presets
Below the chart header there are period preset buttons:
| Button | Range |
|---|---|
| 1D | Last 24 hours |
| 7D | Last 7 days |
| 14D | Last 14 days |
| 30D | Last 30 days |
| 60D | Last 60 days |
Clicking a preset:
- Zooms the chart view to that time range
- Fetches fresh data from the API if not already cached
- Highlights the active period button
This lets you quickly switch between timeframes without re-running the full scan.
Y-Axis Controls
Buttons for controlling the vertical axis scale:
- + — zoom in (narrow the Y-axis range)
- R — reset zoom (return to the automatic scale)
- − — zoom out (widen the Y-axis range)
Auto-Scaling
By default the Y-axis is scaled to the 5th and 95th percentile of the visible data — extreme outliers are clipped so that the main picture remains readable. The range is padded by 10% and snapped to 5% increments for clean axis labels.
Range Bar (Time Selection)
At the bottom of the chart there is a range bar control — a draggable range selector:
- Drag left handle — adjust the start of the visible range
- Drag right handle — adjust the end of the visible range
- Drag the middle — pan through time without changing the range width
- Minimum range — 5 data points (prevents zooming in too far)
The range bar provides fine-grained control over which portion of the data you see on the chart.
Tooltips
Hover over any point on the chart to see a tooltip with:
- Timestamp in local date/time format
- Funding rate for each visible exchange at that moment
- Values formatted as percentage
Reading the Chart
How to Interpret
- Line above zero — longs pay shorts on this exchange (profitable to be short)
- Line below zero — shorts pay longs on this exchange (profitable to be long)
- Large distance between lines — high spread, strong arbitrage potential
- Parallel lines — the spread is stable over time (a positive sign)
- Crossing lines — the spread is unstable; rates are swapping positions frequently
- Flat steps — rate unchanged between settlements (normal behavior)
- Sharp jumps — sudden rate changes, often around high-volatility market events