PTGX
$128.75-5.71%
Protagonist Therapeutics Inc.Stock · HealthcareRussell 2000 0.2%Nasdaq Composite 0.01%US Stock Market 0.01%Russell 3000 0.010%
Protagonist Therapeutics Inc. monthly returns
Protagonist Therapeutics Inc. has averaged 4.18% per month, positive in 55% of months. Month-by-month returns for Protagonist Therapeutics Inc. (PTGX) below, through October 16, 2026 — the table lists the most recent months; the bar chart plots the last 5 years.
Average month
+4.2%
118 months
Best month
+144.9%
May 2020
Worst month
-63.5%
Sep 2021
Positive months
55%
of all months
Protagonist Therapeutics Inc. monthly returns#
| Month | Path | Total return |
|---|---|---|
| Oct 2026 | -8.6% | |
| Sep 2026 | -4.6% | |
| Aug 2026 | +8.1% | |
| Jul 2026 | +11.5% | |
| Jun 2026 | +23.1% | |
| May 2026 | +0.6% | |
| Apr 2026 | -6.1% | |
| Mar 2026 | +14.5% | |
| Feb 2026 | +12.6% | |
| Jan 2026 | -6.3% | |
| Dec 2025 | -3.0% | |
| Nov 2025 | +14.5% | |
| Oct 2025 | +18.4% | |
| Sep 2025 | +12.5% | |
| Aug 2025 | +9.6% | |
| Jul 2025 | -2.6% | |
| Jun 2025 | +16.4% | |
| May 2025 | +3.6% | |
| Apr 2025 | -5.3% | |
| Mar 2025 | +28.7% | |
| Feb 2025 | -0.6% | |
| Jan 2025 | -2.1% | |
| Dec 2024 | -11.9% | |
| Nov 2024 | -4.5% | |
| Oct 2024 | +1.9% | |
| Sep 2024 | +4.9% | |
| Aug 2024 | +14.6% | |
| Jul 2024 | +8.1% | |
| Jun 2024 | +23.1% | |
| May 2024 | +12.1% | |
| Apr 2024 | -13.2% | |
| Mar 2024 | -4.8% | |
| Feb 2024 | +21.5% | |
| Jan 2024 | +9.1% | |
| Dec 2023 | +25.9% | |
| Nov 2023 | +25.2% | |
| Oct 2023 | -12.8% | |
| Sep 2023 | -15.8% | |
| Aug 2023 | +2.2% | |
| Jul 2023 | -29.8% | |
| Jun 2023 | +5.9% | |
| May 2023 | +15.4% | |
| Apr 2023 | -1.7% | |
| Mar 2023 | +41.8% | |
| Feb 2023 | +22.0% | |
| Jan 2023 | +21.8% | |
| Dec 2022 | +37.9% | |
| Nov 2022 | -2.3% | |
| Oct 2022 | -3.9% | |
| Sep 2022 | -3.3% | |
| Aug 2022 | -12.4% | |
| Jul 2022 | +25.8% | |
| Jun 2022 | -9.7% | |
| May 2022 | -3.6% | |
| Apr 2022 | -61.6% | |
| Mar 2022 | -2.5% | |
| Feb 2022 | -17.1% | |
| Jan 2022 | -14.4% | |
| Dec 2021 | +1.7% | |
| Nov 2021 | +7.9% | |
| Oct 2021 | +75.8% | |
| Sep 2021 | -63.5% | |
| Aug 2021 | -1.9% | |
| Jul 2021 | +10.1% | |
| Jun 2021 | +27.8% | |
| May 2021 | +21.3% | |
| Apr 2021 | +11.7% | |
| Mar 2021 | +9.9% | |
| Feb 2021 | +13.8% | |
| Jan 2021 | +2.7% | |
| Dec 2020 | -16.6% | |
| Nov 2020 | +27.5% | |
| Oct 2020 | -3.1% | |
| Sep 2020 | -12.7% | |
| Aug 2020 | +42.4% | |
| Jul 2020 | -10.9% | |
| Jun 2020 | +6.8% | |
| May 2020 | +144.9% | |
| Apr 2020 | -4.4% | |
| Mar 2020 | -9.5% | |
| Feb 2020 | +3.3% | |
| Jan 2020 | +7.1% | |
| Dec 2019 | -19.0% | |
| Nov 2019 | -35.3% | |
| Oct 2019 | +12.0% | |
| Sep 2019 | -7.8% | |
| Aug 2019 | +18.2% | |
| Jul 2019 | -9.0% | |
| Jun 2019 | +20.4% | |
| May 2019 | -2.6% | |
| Apr 2019 | -17.8% | |
| Mar 2019 | +56.7% | |
| Feb 2019 | -1.6% | |
| Jan 2019 | +21.1% | |
| Dec 2018 | +4.0% | |
| Nov 2018 | -19.0% | |
| Oct 2018 | -22.4% | |
| Sep 2018 | +6.9% | |
| Aug 2018 | +39.2% | |
| Jul 2018 | +3.0% | |
| Jun 2018 | -7.7% | |
| May 2018 | -15.7% | |
| Apr 2018 | +0.6% | |
| Mar 2018 | -49.3% | |
| Feb 2018 | -25.9% | |
| Jan 2018 | +9.9% | |
| Dec 2017 | +6.7% | |
| Nov 2017 | +30.3% | |
| Oct 2017 | -15.3% | |
| Sep 2017 | +8.2% | |
| Aug 2017 | +34.0% | |
| Jul 2017 | +7.8% | |
| Jun 2017 | +1.3% | |
| May 2017 | +10.4% | |
| Apr 2017 | -21.0% | |
| Mar 2017 | -7.6% | |
| Feb 2017 | -23.2% | |
| Jan 2017 | -18.0% | |
| Dec 2016 | -11.9% | |
| Nov 2016 | +32.7% |
Monthly total return (since Nov 2021)#
-60%-40%-20%0%20%40%60%
Nov 2021+7.9%
Dec 2021+1.7%
Jan 2022-14%2022
Feb 2022-17%
Mar 2022-2.5%
Apr 2022-62%
May 2022-3.6%
Jun 2022-9.7%
Jul 2022+26%
Aug 2022-12%
Sep 2022-3.3%
Oct 2022-3.9%
Nov 2022-2.3%
Dec 2022+38%
Jan 2023+22%2023
Feb 2023+22%
Mar 2023+42%
Apr 2023-1.7%
May 2023+15%
Jun 2023+5.9%
Jul 2023-30%
Aug 2023+2.2%
Sep 2023-16%
Oct 2023-13%
Nov 2023+25%
Dec 2023+26%
Jan 2024+9.1%2024
Feb 2024+21%
Mar 2024-4.8%
Apr 2024-13%
May 2024+12%
Jun 2024+23%
Jul 2024+8.1%
Aug 2024+15%
Sep 2024+4.9%
Oct 2024+1.9%
Nov 2024-4.5%
Dec 2024-12%
Jan 2025-2.1%2025
Feb 2025-0.56%
Mar 2025+29%
Apr 2025-5.3%
May 2025+3.6%
Jun 2025+16%
Jul 2025-2.6%
Aug 2025+9.6%
Sep 2025+12%
Oct 2025+18%
Nov 2025+14%
Dec 2025-3.0%
Jan 2026-6.3%2026
Feb 2026+13%
Mar 2026+14%
Apr 2026-6.1%
May 2026+0.6%
Jun 2026+23%
Jul 2026+11%
Aug 2026+8.1%
Sep 2026-4.6%
Oct 2026-8.6%
Protagonist Therapeutics Inc. returns by calendar month#
Every month of every year since 2017, one tick per year on a shared scale; the dark bar is the month's average. Total returns, dividends reinvested.
October 2026 so far: -8.62% — 7th of 10 Octobers since 2017 at the last close; the average October returned +5.6%.
| Month | −145%0+145% | Average | Median | Up | Best | Worst |
|---|---|---|---|---|---|---|
| Jan | +3.1% | +4.9% | 60% | +21.8% 2023 | -18.0% 2017 | |
| Feb | +0.5% | +1.4% | 50% | +22.0% 2023 | -25.9% 2018 | |
| Mar | +7.8% | +3.7% | 50% | +56.7% 2019 | -49.3% 2018 | |
| Apr | -11.9% | -5.7% | 20% | +11.7% 2021 | -61.6% 2022 | |
| May | +18.6% | +7.0% | 70% | +144.9% 2020 | -15.7% 2018 | |
| Jun | +10.7% | +11.6% | 80% | +27.8% 2021 | -9.7% 2022 | |
| Jul | +1.4% | +5.4% | 60% | +25.8% 2022 | -29.8% 2023 | |
| Aug | +15.4% | +12.1% | 80% | +42.4% 2020 | -12.4% 2022 | |
| Sep | -7.5% | -4.0% | 40% | +12.5% 2025 | -63.5% 2021 | |
| Oct | +5.6% | -3.1% | 44% | +75.8% 2021 | -22.4% 2018 | |
| Nov | +4.9% | +7.9% | 56% | +30.3% 2017 | -35.3% 2019 | |
| Dec | +2.9% | +1.7% | 56% | +37.9% 2022 | -19.0% 2019 |
Methodology#
Monthly returns are total returns (dividends reinvested), computed from PTGX's split- and dividend-adjusted month-end closes. The table shows the most recent 120 months and the bar chart the most recent 60. See the year-by-year returns for the annual view. Past performance does not predict future returns; not investment advice.
FAQ#
- What is Protagonist Therapeutics Inc.'s average monthly return?
- Protagonist Therapeutics Inc. (PTGX) has averaged about 4.18% per month, positive in roughly 55% of months. The best month was May 2020 (+144.9%) and the worst was Sep 2021 (-63.5%).
More on Protagonist Therapeutics Inc.
By month for: S&P 500 · S&P 500 Equal Weight · US Stock Market · Nasdaq-100