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ADP· Automatic Data Processing
Dark pool · off-exchange short volume
Short ratio (latest)
72.9%
20-day average
57.2%
Off-exchange share (20d)
30%

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

305.82
0.96B
300.45
5.46B
295.09
8.47B
289.72
5.92B
284.36
8.98B
278.99
6.49B
273.63
3.84B
268.26
2.97B
262.89
3.33B
257.53
4.51B
252.16
6.57B
246.80
4.53B
241.43
3.35B
236.07
8.10B
230.70
9.44B

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.

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