Volume-abnormality scan — 2/3/5× on daily & weekly

as of 2026-07-21 · universe 501 · analyzed 498 · min avg vol ≥ 50.0K sh/day

daily RVOL = today's volume ÷ 20-session avg · weekly RVOL = this week-to-date ÷ prior weeks at the same day-of-week · 40-day candles over volume (dashed = avg vol, latest bar solid) · green/red = up/down day (accumulation vs distribution)

Daily volume abnormalities · 10

DHR 6.6× · $179.01 -11.0%
SP500
165.75186.17206.59avg 4.3M05-2206-2307-21
daily RVOL 6.6×28.1M vs 4.3Mprice $179.01day -11.0%week-to-date 4.1× (2d in)34.4M vs 8.3M
EFX 3.9× · $173.00 -3.9%
SP500
150.75166.54182.34avg 1.6M05-2206-2307-21
daily RVOL 3.9×6.3M vs 1.6Mprice $173.00day -3.9%week-to-date 3.0× (2d in)9.4M vs 3.2M
HAS 3.9× · $88.78 +8.8%
SP500
75.1984.1293.05avg 2.1M05-2206-2307-21
daily RVOL 3.9×8.1M vs 2.1Mprice $88.78day +8.8%week-to-date 3.8× (2d in)13.5M vs 3.6M
PSA 3.7× · $309.75 -1.8%
SP500
294.89313.34331.79avg 992.9K05-2206-2307-21
daily RVOL 3.7×3.7M vs 992.9Kprice $309.75day -1.8%week-to-date 2.1× (2d in)4.7M vs 2.3M
MMM 3.5× · $170.76 +7.3%
SP500
148.40162.28176.16avg 3.2M05-2206-2307-21
daily RVOL 3.5×11.0M vs 3.2Mprice $170.76day +7.3%week-to-date 2.1× (2d in)15.1M vs 7.3M
HAL 3.1× · $33.19 -5.5%
SP500
32.3837.1741.96avg 11.0M05-2206-2307-21
daily RVOL 3.1×34.1M vs 11.0Mprice $33.19day -5.5%week-to-date 1.9× (2d in)49.1M vs 26.0M
TDY 2.9× · $647.48 +3.3%
SP500
599.84637.25674.66avg 355.7K05-2206-2307-21
daily RVOL 2.9×1.0M vs 355.7Kprice $647.48day +3.3%week-to-date 2.4× (2d in)1.5M vs 606.7K
MSCI 2.8× · $561.74 -10.1%
SP500
542.33593.55644.77avg 714.1K05-2206-2307-21
daily RVOL 2.8×2.0M vs 714.1Kprice $561.74day -10.1%week-to-date 2.3× (2d in)2.8M vs 1.2M
NOC 2.4× · $512.29 -2.2%
SP500
479.02521.47563.93avg 1.0M05-2206-2307-21
daily RVOL 2.4×2.4M vs 1.0Mprice $512.29day -2.2%week-to-date 2.0× (2d in)3.5M vs 1.8M
SYF 2.2× · $72.21 -1.6%
SP500
68.0573.8779.69avg 3.7M05-2206-2307-21
daily RVOL 2.2×8.3M vs 3.7Mprice $72.21day -1.6%week-to-date 1.9× (2d in)14.1M vs 7.4M

Weekly volume abnormalities (week-to-date) · 10

DHR 4.1× · $179.01 -11.0%
SP500
165.75186.17206.59avg 4.3M05-2206-2307-21
daily RVOL 6.6×28.1M vs 4.3Mprice $179.01day -11.0%week-to-date 4.1× (2d in)34.4M vs 8.3M
HAS 3.8× · $88.78 +8.8%
SP500
75.1984.1293.05avg 2.1M05-2206-2307-21
daily RVOL 3.9×8.1M vs 2.1Mprice $88.78day +8.8%week-to-date 3.8× (2d in)13.5M vs 3.6M
EFX 3.0× · $173.00 -3.9%
SP500
150.75166.54182.34avg 1.6M05-2206-2307-21
daily RVOL 3.9×6.3M vs 1.6Mprice $173.00day -3.9%week-to-date 3.0× (2d in)9.4M vs 3.2M
BNY 2.5× · $158.89 +1.2%
SP500
137.50150.63163.77avg 4.7M05-2206-2307-21
daily RVOL 0.9×4.1M vs 4.7Mprice $158.89day +1.2%week-to-date 2.5× (2d in)8.5M vs 3.3M
TDY 2.4× · $647.48 +3.3%
SP500
599.84637.25674.66avg 355.7K05-2206-2307-21
daily RVOL 2.9×1.0M vs 355.7Kprice $647.48day +3.3%week-to-date 2.4× (2d in)1.5M vs 606.7K
T 2.4× · $22.26 +1.4%
SP500
19.8922.6625.43avg 80.1M05-2206-2307-21
daily RVOL 1.7×139.8M vs 80.1Mprice $22.26day +1.4%week-to-date 2.4× (2d in)227.5M vs 94.1M
ISRG 2.3× · $350.06 -0.9%
SP500
342.10392.98443.86avg 3.5M05-2206-2307-21
daily RVOL 1.5×5.2M vs 3.5Mprice $350.06day -0.9%week-to-date 2.3× (2d in)10.9M vs 4.6M
MSCI 2.3× · $561.74 -10.1%
SP500
542.33593.55644.77avg 714.1K05-2206-2307-21
daily RVOL 2.8×2.0M vs 714.1Kprice $561.74day -10.1%week-to-date 2.3× (2d in)2.8M vs 1.2M
MMM 2.1× · $170.76 +7.3%
SP500
148.40162.28176.16avg 3.2M05-2206-2307-21
daily RVOL 3.5×11.0M vs 3.2Mprice $170.76day +7.3%week-to-date 2.1× (2d in)15.1M vs 7.3M
PSA 2.1× · $309.75 -1.8%
SP500
294.89313.34331.79avg 992.9K05-2206-2307-21
daily RVOL 3.7×3.7M vs 992.9Kprice $309.75day -1.8%week-to-date 2.1× (2d in)4.7M vs 2.3M

Volume abnormality flags attention/volatility, not direction — pair with the day colour and price level before acting.