TYL

Dark pool — off-exchange short volume

GEX Back to dark pool

Short ratio (latest)

64.6%

20-day average

62.6%

Off-exchange share (20d)

45%

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

347.07

1.68B

340.98

1.86B

334.90

1.78B

328.81

1.77B

322.72

1.98B

316.63

1.82B

310.54

1.85B

304.45

1.07B

298.36

0.59B

292.27

0.50B

286.18

0.41B

280.09

0.23B

274.01

0.15B

267.92

0.21B

261.83

0.36B

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.