CIEN Dark Pool — Off-Exchange & Short Volume

Market/Dark Pool/CIEN

CIEN· Ciena

Dark pool · off-exchange short volume

Open interest GEX Full dossier

Short ratio (latest)

45.1%

20-day average

38.4%

Off-exchange share (20d)

43%

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

398.48

2.37B

391.48

1.80B

384.49

1.54B

377.50

1.36B

370.51

1.00B

363.52

1.13B

356.53

1.42B

349.54

2.06B

342.55

2.25B

335.56

1.92B

328.57

1.25B

321.58

0.71B

314.59

0.79B

307.60

0.77B

300.60

0.93B

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.