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MAS· Masco
Dark pool · off-exchange short volume
Short ratio (latest)
78.4%
20-day average
69.3%
Off-exchange share (20d)
34%

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

78.11
1.19B
76.74
1.38B
75.37
2.42B
74.00
2.58B
72.63
2.44B
71.26
2.20B
69.89
2.31B
68.52
2.20B
67.15
2.12B
65.78
2.11B
64.41
2.61B
63.04
2.51B
61.67
2.13B
60.30
1.79B
58.93
1.75B

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.

MAS Dark Pool — Off-Exchange & Short Volume — Tapelab