PTGX: Protagonist Therapeutics Inc.

As of Friday, October 23rd, 2026

$ 138.70

-0.83 -0.59%

Open: 136.89
High: 139.52
Low: 135.00
Volume: 408,856
Previous Close on Thursday, October 22nd, 2026

$ 139.53

+1.58 +1.15%

Open: 137.49
High: 141.38
Low: 136.07
Volume: 38,201

Historical Data

Date Open High Low Close Volume Chg %Chg
2026-10-23 136.89 139.52 135.00 138.70 408,856 -0.83 -0.59
2026-10-22 137.49 141.38 136.07 139.53 38,201 +1.58 +1.15
2026-10-21 139.71 141.85 137.96 137.95 989,918 -0.04 -0.03
2026-10-20 135.87 140.82 134.33 137.99 764,373 +3.55 +2.64
2026-10-19 130.09 134.97 128.01 134.44 611,586 +5.69 +4.42
2026-10-16 136.16 136.56 126.39 128.75 860,931 -7.80 -5.71
2026-10-15 137.55 139.11 136.03 136.55 692,767 +0.27 +0.20
2026-10-14 138.06 141.13 135.62 136.28 67,802 -2.21 -1.60
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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 141.85
On 2026-10-21		 128.01
On 2026-10-19		 9.95 7.73 141.85
On 2026-10-21		 135.00
On 2026-10-23		 -4.83 137.72
10D 152.19
On 2026-10-12		 126.39
On 2026-10-16		 -5.03 -3.50 152.19
On 2026-10-12		 126.39
On 2026-10-16		 -16.95 137.36
20D 152.19
On 2026-10-12		 126.39
On 2026-10-16		 -3.16 -2.23 152.19
On 2026-10-12		 126.39
On 2026-10-16		 -16.95 139.05
WTD 141.85
On 2026-10-21		 128.01
On 2026-10-19		 9.95 7.73 141.85
On 2026-10-21		 135.00
On 2026-10-23		 -4.83 137.72
MTD 152.19
On 2026-10-12		 126.39
On 2026-10-16		 -2.19 -1.55 152.19
On 2026-10-12		 126.39
On 2026-10-16		 -16.95 138.63
As of Friday, October 23rd, 2026
 
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21.96 +0.37 +1.71
VIX3M

CBOE S&P 500 3-Month Volatility Index

20.48 +0.43 +2.14
 
Recent
Ticker Last Chg %Chg Volume
SNDL

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1.27 -0.02 -1.54 7,448
PTGX

Protagonist Therapeutics Inc.

138.70 -0.83 -0.59 408,856