PEN: Penumbra Inc.

As of Friday, September 18th, 2026

$ 317.60

-1.27 -0.40%

Open: 319.19
High: 319.19
Low: 317.50
Volume: 989,207
Previous Close on Thursday, September 17th, 2026

$ 318.87

+0.47 +0.15%

Open: 319.20
High: 319.20
Low: 317.95
Volume: 416,063

Historical Data

Date Open High Low Close Volume Chg %Chg
2026-09-18 319.19 319.19 317.50 317.60 989,207 -1.27 -0.40
2026-09-17 319.20 319.20 317.95 318.87 416,063 +0.47 +0.15
2026-09-16 317.30 319.33 317.30 318.40 816,929 -0.03 -0.01
2026-09-15 319.97 319.97 318.18 318.43 500,831 -1.43 -0.45
2026-09-14 319.30 320.31 318.65 319.86 219,781 +2.13 +0.67
2026-09-11 318.54 318.54 317.59 317.73 151,794 -0.05 -0.02
2026-09-10 319.38 319.38 317.62 317.78 141,323 -1.79 -0.56
2026-09-09 319.35 320.90 319.21 319.57 212,687 +0.31 +0.10
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Metrics and Technicals

Period High Low Chg %Chg Max Drawdown SMA
Peak Trough %Loss
Period High Low Chg %Chg MDD SMA
5D 320.31
On 2026-09-14		 317.30
On 2026-09-16		 -0.13 -0.04 320.31
On 2026-09-14		 317.30
On 2026-09-16		 -0.94 318.63
10D 322.72
On 2026-09-04		 317.30
On 2026-09-16		 -3.54 -1.10 322.72
On 2026-09-04		 317.30
On 2026-09-16		 -1.68 318.97
20D 325.66
On 2026-08-21		 317.30
On 2026-09-16		 -6.16 -1.90 325.66
On 2026-08-21		 317.30
On 2026-09-16		 -2.57 320.92
WTD 320.31
On 2026-09-14		 317.30
On 2026-09-16		 -0.13 -0.04 320.31
On 2026-09-14		 317.30
On 2026-09-16		 -0.94 318.63
MTD 325.00
On 2026-09-01		 317.30
On 2026-09-16		 -5.50 -1.70 325.00
On 2026-09-01		 317.30
On 2026-09-16		 -2.37 319.71
As of Friday, September 18th, 2026
 
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Ticker Last Chg %Chg Volume
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51,682.64 -95.40 -0.18 846,991,233
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23,998.76 -90.79 -0.38
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8,602.36 -22.89 -0.27
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RUT

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RUA

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VIX

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14.81 -0.63 -4.08
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VIX6M

CBOE S&P 500 6-Month Volatility Index

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VIX3M

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18.24 -0.27 -1.46
 
Recent
Ticker Last Chg %Chg Volume
PEN

Penumbra Inc.

317.60 -1.27 -0.40 989,207