Concept · article 13 of 14

Reading
the sparklines.

The four mini-charts on the KPI strip. What direction means what, and when a flat line is good news.

Ibrahim Ölmez Ibrahim ÖlmezFounder · nouz · 4 min read · Updated this week
One per KPI. Four sparklines on the KPI strip — one each under gross, net, COGS, EBIT. They cover the same range as the picker above.

Sparklines are the lowest-resolution insight in nouz — but also the fastest. A glance at the four sparklines tells you the directional state of your business in two seconds.

01 What they show

Each sparkline is a daily line chart of its metric across the selected range. Tiny enough to be a glance-only thing; rich enough to show direction and rough volatility.

02 Reading direction

  • Up-right slope — metric is trending up across the range.
  • Down-right slope — trending down.
  • Zigzag — high variance day-to-day. Often a weekday pattern (busy Sat, quiet Tue).
  • Flat — stable. Sometimes the most desirable shape, depending on the metric.

03 When flat is good

For COGS as a percentage of revenue, flat means your margins are stable — exactly what you want. For variable costs, flat means they're scaling with revenue, not creeping. For EBIT, flat at a positive number is great; flat at a negative number is alarming. Direction matters as much as slope.

04 Distinguishing signal from noise

A 30-day sparkline naturally has weekday peaks and weekend troughs that look like zigzag. That's noise, not signal. The signal is the trend line through the noise — imagine drawing a smooth line through the middle. If that imaginary line is up, you're trending up regardless of the day-to-day bumps.

Don't over-read short ranges. A 7-day sparkline is barely enough to show direction. For real trend reading, the 30-day view is the minimum useful range.

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