PTGX (Protagonist Therapeu...) Stock Historical Data

As of Friday, August 28th, 2026

$ 144.33

-5.17 -3.46%

Open: 147.73
High: 147.95
Low: 142.43
Volume: 499,776
Previous Close on Thursday, August 27th, 2026

$ 149.50

-2.00 -1.32%

Open: 150.35
High: 151.68
Low: 147.11
Volume: 381,588
 
 
Date Open High Low Close Volume
 
Free Tier
Ticker Last Chg %Chg Volume
GE

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342.58 -0.15 -0.04 2,534,704
KO

The Coca-Cola Company

89.66 +0.60 +0.67 9,880,635
PFE

Pfizer Inc.

27.96 -0.06 -0.21 27,166,657
VZ

Verizon Communications Inc.

50.10 +0.67 +1.36 15,789,641
VIX

CBOE Volatility Index

14.43 -0.08 -0.55
 
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Markets
Ticker Last Chg %Chg Volume
DJIA

Dow Jones Industrial Average

53,559.99 -9.45 -0.02 507,511,504
DJTA

Dow Jones Transportation Average

21,378.75 -61.52 -0.29 40,025,430
SPX

S&P 500 Index

7,711.76 -19.23 -0.25
OEX

S&P 100 Index

3,812.21 +0.47 +0.01
NDX

NASDAQ 100 Index

29,433.43 -208.13 -0.70
NYA

NYSE Composite Index

24,585.18 -63.85 -0.26
XAX

NYSE AMEX Composite Index

8,798.40 -144.61 -1.62
RUI

RUSSELL 1000 Index

4,201.01 -13.61 -0.32
RUT

Russell 2000 Index

2,972.37 -41.97 -1.39
RUA

Russell 3000 Index

4,383.34 -16.18 -0.37
VIX

CBOE Volatility Index

14.43 -0.08 -0.55
VIX1Y

CBOE S&P 500 One-Year Volatility Index

22.16 -0.08 -0.36
VIX6M

CBOE S&P 500 6-Month Volatility Index

20.30 -0.06 -0.29
VIX3M

CBOE S&P 500 3-Month Volatility Index

17.48 -0.08 -0.46
 
Recent
Ticker Last Chg %Chg Volume
PTGX

Protagonist Therapeutics Inc.

144.33 -5.17 -3.46 499,776