CIEN

Dark pool — off-exchange short volume

GEX Back to dark pool

Short ratio (latest)

43.2%

20-day average

31.0%

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

494.01

1.98B

485.34

1.91B

476.67

2.09B

468.01

1.29B

459.34

0.92B

450.67

0.68B

442.01

1.07B

433.34

1.11B

424.67

1.06B

416.01

1.03B

407.34

1.30B

398.67

1.16B

390.01

0.78B

381.34

0.72B

372.67

0.55B

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.