BXP
Dark pool — off-exchange short volume
Short ratio (latest)
76.7%
20-day average
70.7%
Off-exchange share (20d)
38%
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
75.57
0.90B
74.24
1.16B
72.92
1.54B
71.59
1.55B
70.27
1.71B
68.94
2.30B
67.62
2.10B
66.29
1.77B
64.96
2.07B
63.64
2.49B
62.31
1.83B
60.99
1.62B
59.66
1.74B
58.34
2.02B
57.01
1.67B
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.