TMUS

Dark pool — off-exchange short volume

GEX Back to dark pool

Short ratio (latest)

49.0%

20-day average

38.6%

Off-exchange share (20d)

31%

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

211.44

7.24B

207.73

6.17B

204.02

5.11B

200.31

6.23B

196.60

10.1B

192.89

9.42B

189.18

8.29B

185.47

5.92B

181.76

3.63B

178.05

2.11B

174.34

4.08B

170.63

4.36B

166.92

1.05B

163.21

0.76B

159.50

5.43B

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.