PAYX· Paychex

Dark pool · off-exchange short volume

Dark pool as of 2026-11-04 · latest session 2026-11-05

PAYX's off-exchange short-volume ratio was 53.6% on 4 Nov 2026, below its 20-day average of 64.4%. Off-exchange trading was 37% of volume over the last 20 sessions. 9 sessions in the last six months had unusually large off-exchange dollar volume, the latest on 27 Oct 2026.

Short ratio (latest)

53.6%

20-day average

64.4%

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

131.84

2.94B

129.53

1.17B

127.22

1.19B

124.90

2.31B

122.59

3.28B

120.28

2.96B

117.96

3.96B

115.65

4.37B

113.34

7.20B

111.02

8.19B

108.71

8.59B

106.40

5.60B

104.09

5.02B

101.77

5.85B

99.46

5.49B

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.