TMUS· T-Mobile US

Dark pool · off-exchange short volume

as of 2026-11-05

TMUS's off-exchange short-volume ratio was 49.2% on 5 Nov 2026, above its 20-day average of 39.8%. Off-exchange trading was 37% of volume over the last 20 sessions. 6 sessions in the last six months had unusually large off-exchange dollar volume, the latest on 30 Oct 2026.

Short ratio (latest)

49.2%

20-day average

39.8%

Off-exchange share (20d)

37%

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

181.45

8.22B

178.27

5.17B

175.09

5.22B

171.90

5.77B

168.72

3.44B

165.54

2.71B

162.35

2.40B

159.17

7.04B

155.99

12.8B

152.80

4.33B

149.62

2.97B

146.44

2.66B

143.25

7.75B

140.07

12.2B

136.89

15.8B

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.