GlossaryIntermediate
High-Low Index
A market-breadth indicator measuring the proportion of assets making new highs versus new lows over a period.
The High-Low Index measures the proportion of assets within a broader market making a new high (commonly a 52-week high) relative to the combined total making either a new high or a new low over the same period.
A consistently high reading suggests broad strength, with many assets participating in new highs; a low reading suggests broad weakness, with new lows dominating — making it another lens on overall market participation, alongside tools like the McClellan Oscillator and TRIN. See Kaavon's dedicated High-Low Index article for the full calculation.
Examples
- A High-Low Index staying elevated over a sustained period suggests broad market strength, with many assets participating in new highs, not just a handful.
- The High-Low Index, McClellan Oscillator, and TRIN all measure market breadth, but each uses a structurally different underlying calculation.