NASDAQ$PTGX
Protagonist Therapeutics Inc · Q1 2026 earnings
Q1 2026 earnings · · Investor relations
Headline financials
Revenue & EPS history
Protagonist · Revenue · Quarterly
$4.71M
Q3 2025+0.8%vs Q3 2024
Historical earnings impact
How earnings announcements have historically affected this stock's price.
Avg. return before/after earnings
Based on 19 quarterly earnings reports · overlaid with Q1 2026
+3.2%
Avg return
Earnings day
+5.4%
Avg return
5 days after
+8.5%
Avg return
30 days after
51%
20 / 39 earnings
Positive
+75.1%
Q1 2020
Best reaction
-21.2%
Q1 2018
Worst reaction
| Quarter | Report date | Reaction (Day 0) | +5 days | +30 days |
|---|---|---|---|---|
| Q1 2026 | -0.3% | -0.2% | — | |
| Q4 2025 | -0.3% | +7.8% | +13.3% | |
| Q3 2025 | -0.2% | +6.4% | +12.4% | |
| Q1 2025 | +2.4% | +3.2% | +22.9% | |
| Q4 2024 | -7.1% | -6.2% | +35.6% | |
| Q3 2024 | -2.9% | -9.3% | -11.6% | |
| Q2 2024 | +0.0% | +8.2% | +17.4% | |
| Q1 2024 | +4.0% | +8.3% | +30.5% | |
| Q4 2023 | +3.0% | +8.9% | -2.0% | |
| Q3 2023 | +10.2% | +9.0% | +22.8% | |
| Q2 2023 | +3.3% | -2.0% | +5.2% | |
| Q1 2023 | +1.5% | +3.3% | +15.3% | |
| Q4 2022 | -8.4% | -9.9% | -25.9% | |
| Q3 2022 | -0.5% | +9.4% | +0.4% | |
| Q2 2022 | +2.2% | -1.6% | -21.1% | |
| Q1 2022 | -0.3% | -10.3% | -6.4% | |
| Q4 2021 | +7.2% | -0.7% | -2.3% | |
| Q3 2021 | +5.0% | +7.4% | +0.1% | |
| Q2 2021 | -2.2% | -0.4% | -0.8% | |
| Q1 2021 | -0.4% | -0.1% | +19.3% | |
| Q4 2020 | +3.5% | +2.8% | -11.4% | |
| Q3 2020 | +14.2% | +6.6% | +11.0% | |
| Q2 2020 | +8.3% | +2.3% | +23.8% | |
| Q1 2020 | +75.1% | +97.4% | +98.0% | |
| Q4 2019 | -4.8% | +5.1% | -7.6% | |
| Q3 2019 | -19.3% | -14.2% | -37.5% | |
| Q2 2019 | +0.8% | -2.9% | +60.6% | |
| Q1 2019 | +20.8% | +16.3% | +31.4% | |
| Q4 2018 | +0.1% | +22.3% | +22.2% | |
| Q3 2018 | +14.1% | +22.3% | -14.6% | |
| Q2 2018 | -1.8% | -6.4% | -18.1% | |
| Q1 2018 | -21.2% | -22.4% | -13.5% | |
| Q4 2017 | -2.0% | +1.4% | -57.5% | |
| Q3 2017 | +8.9% | +16.2% | +25.2% | |
| Q2 2017 | -7.7% | -4.4% | +33.6% | |
| Q1 2017 | +10.5% | +14.3% | +21.1% | |
| Q4 2016 | -0.6% | +0.4% | -16.8% | |
| Q3 2016 | -1.6% | +3.4% | -16.5% | |
| Q2 2016 | +9.4% | +19.1% | +63.8% | |
| Q1 2016 | — | — | — | |
| Q4 2015 | — | — | — | |
| Q3 2015 | — | — | — | |
| Q2 2015 | — | — | — | |
| Q1 2015 | — | — | — |
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