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Protagonist Therapeutics (PTGX) Stock Chart & Stock Price History

Protagonist Therapeutics logo
$139.38 +0.19 (+0.14%)
As of 01:04 PM Eastern
This is a fair market value price provided by Massive. Learn more.

Protagonist Therapeutics Stock Price Performance

The Protagonist Therapeutics (PTGX) stock chart highlights key performance trends across multiple timeframes. Over the last 12 months, the stock's price has increased 114.50%, with a year-to-date return of 59.59%. In the past month, the stock has decreased 4.58%, reflecting recent market activity.

As of the latest close, Protagonist Therapeutics traded at $139.19 with a market cap of $9.01 billion and volume of 886,233 shares. Five years ago, the stock traded at $17.95, representing a 676.51% increase over that period. At the time, it had a market cap of $853.54 million and a volume of 570,826 shares.

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5 Day
Performance
-1.75%
1 Month
Performance
-4.58%
3 Month
Performance
+5.90%
Year-To-Date
Performance
+59.59%
1 Year
Performance
+114.50%
5 Year
Performance
+676.51%

PTGX Stock Chart for Friday, October, 2, 2026

Protagonist Therapeutics Stock Price History

DateOpening PriceClosing PriceHighLowVolumeMarket Capitalization
10/01/2026$140.89$139.19
-1.21%
$143.68$138.37886,233 shs$9.01 billion
09/30/2026$140.97$140.89
-0.06%
$143.74$140.44787,657 shs$9.12 billion
09/29/2026$142.44$140.97
-1.03%
$144.09$138.88508,012 shs$9.12 billion
09/28/2026$141.86$142.44
+0.41%
$143.69$140.24925,457 shs$9.22 billion
09/25/2026$137.34$141.86
+3.29%
$143.45$138.23809,215 shs$9.18 billion
09/24/2026$138.70$137.34
-0.98%
$140.80$134.10974,984 shs$8.89 billion
09/23/2026$145.07$138.70
-4.39%
$145.28$137.88513,167 shs$8.98 billion
09/22/2026$144.98$145.07
+0.06%
$147.71$144.50802,036 shs$9.39 billion
09/21/2026$143.00$144.98
+1.38%
$145.37$141.09735,080 shs$9.38 billion
09/18/2026$143.70$143.00
-0.49%
$144.58$140.441.84 million shs$9.25 billion
09/17/2026$142.84$143.70
+0.60%
$146.50$142.31558,897 shs$9.30 billion
09/16/2026$143.40$142.84
-0.39%
$146.19$140.88506,951 shs$9.24 billion
09/15/2026$147.78$143.40
-2.96%
$147.99$142.00637,518 shs$9.28 billion
09/14/2026$148.18$147.78
-0.27%
$151.24$146.83598,117 shs$9.56 billion
09/11/2026$145.16$148.18
+2.08%
$150.48$145.82478,035 shs$9.59 billion
09/10/2026$145.09$145.16
+0.05%
$146.51$142.00543,127 shs$9.39 billion
09/09/2026$145.94$145.09
-0.58%
$151.19$144.46530,489 shs$9.39 billion
09/08/2026$145.72$145.94
+0.15%
$147.29$142.00700,124 shs$9.44 billion
09/07/2026$145.72$145.72$147.99$144.01501,296 shs$9.43 billion
09/04/2026$148.80$145.72
-2.07%
$147.99$144.01501,296 shs$9.43 billion
09/03/2026$146.08$148.80
+1.86%
$149.49$144.00353,886 shs$9.63 billion
09/02/2026$146.49$146.08
-0.28%
$149.42$144.61561,502 shs$9.45 billion
09/01/2026$147.75$146.49
-0.85%
$150.34$144.73534,133 shs$9.48 billion

This page (NASDAQ:PTGX) was last updated on 10/2/2026 by MarketBeat.com Staff.
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