Market Breadth
Advancers vs. decliners, up-vs-down volume, new 52-week extremes across the ~100-name large-cap universe. One read for: is the tape broad, or carried by a few?
Broad rally or a three-stock press? Breadth answers it. It batches the ~100-name liquid universe the Heatmap uses, counts the winners vs losers (and how much volume went up vs. down), and flags any name printing a new 52-week extreme right now.
What's on it
- Advance/decline line — the day's A/D step-line plus the up-volume/down-volume split
- New 52-week highs / lows — count + a ticker list of who's doing it
- Breadth read — a one-word state: STRONG / MIXED / WEAK, with the day's numbers as support
When to use it
- Before the open: is a green premarket actually broad, or three names? Set expectations accordingly.
- Intraday: if breadth stays negative while SPX goes green — fragile rally, tighter stops.
- End of day: one-line sanity check before tomorrow.
Related
- Heatmap — the same universe shown as a treemap
- Scanner — the every-name tape this summarizes
- Economic Dashboard — what macro is doing under the hood