SBAC· SBA Communications

Dark pool · off-exchange short volume

Dark pool as of 2026-11-04 · latest session 2026-11-05

SBAC's off-exchange short-volume ratio was 32.7% on 4 Nov 2026, below its 20-day average of 47.4%. Off-exchange trading was 40% of volume over the last 20 sessions. 8 sessions in the last six months had unusually large off-exchange dollar volume, the latest on 2 Nov 2026.

Short ratio (latest)

32.7%

20-day average

47.4%

Off-exchange share (20d)

40%

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

210.55

5.03B

206.85

4.36B

203.16

3.16B

199.47

2.59B

195.77

3.98B

192.08

4.62B

188.38

5.94B

184.69

5.04B

181.00

3.68B

177.30

1.58B

173.61

0.54B

169.91

0.55B

166.22

0.83B

162.53

0.43B

158.83

0.45B

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.