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SPCX
Dark pool · off-exchange short volume
Short ratio (latest)
54.4%
20-day average
58.4%
Off-exchange share (20d)
49%

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

172.38
2.83B
169.36
4.48B
166.33
6.64B
163.31
8.76B
160.28
10.4B
157.26
14.0B
154.23
13.8B
151.21
23.3B
148.19
26.7B
145.16
21.6B
142.14
31.8B
139.11
29.3B
136.09
25.6B
133.06
16.9B
130.04
8.07B

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.

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