VMC· Vulcan Materials Company
Dark pool · off-exchange short volume
Short ratio (latest)
56.8%
20-day average
61.6%
Off-exchange share (20d)
39%
Darkpool density
big day, short ratio above trendbelow trendbubble size = how unusual ($vol z-score)
Last ~6 months. Bubbles mark days of unusually large off-exchange dollar volume (≥1.5σ vs the trailing 60 days). Daily resolution — not print-level data.
Darkpool levels ±15% of spot, since 2018-10-01
288.12
5.11B
283.07
3.83B
278.01
3.15B
272.96
4.01B
267.90
5.72B
262.85
6.28B
257.79
3.74B
252.74
3.16B
247.69
2.42B
242.63
2.52B
237.58
2.45B
232.52
2.20B
227.47
1.49B
222.41
1.63B
217.36
2.58B
Historical off-exchange $ volume at price: each day's volume spread across that day's range, summed over the full FINRA history. Heavy shelves often act as support/resistance magnets. Amber row = spot's bin.
Off-exchange short-volume ratio
short ratio (20d, right) daily off-exchange share (left)
FINRA daily TRF data, last 2 years. A persistently HIGH short ratio is mostly passive market-maker liquidity provision (commonly read as accumulation pressure) — not naively bearish.