Protagonist Therapeutics (PTGX) Total Return Calculator
$10,000 since Aug 2016, with and without reinvesting · data through Oct 2026
$10,000 invested in Protagonist Therapeutics (PTGX) ten years ago, at the end of Oct 2016, was worth $77,048 at the end of Oct 2026 with every dividend reinvested: 22.7% a year, against $41,633 in the S&P 500. Since Aug 2016, $10,000 became $120,608 reinvested (27.8% a year), or $120,608 taking the dividends as cash, $0 of it paid out along the way.
PTGX became
$120,608
S&P 500: $40,914
Return a year
27.8%
S&P 500: 14.9%
Payouts reinvested
$0
bought more shares
Worst drop
-84.0%
S&P 500: -23.9%
$10,000, Aug 2016 to Oct 2026
Payouts reinvested · S&P 500 reinvested
| Year | PTGX total return | Paid out | S&P 500 |
|---|---|---|---|
| 2026 (part) | +65.8% | $0 | +11.7% |
| 2025 | +126.3% | $0 | +17.7% |
| 2024 | +68.3% | $0 | +24.9% |
| 2023 | +110.2% | $0 | +26.2% |
| 2022 | −68.1% | $0 | −18.2% |
| 2021 | +69.6% | $0 | +28.7% |
| 2020 | +186.0% | $0 | +18.3% |
| 2019 | +4.8% | $0 | +31.2% |
| 2018 | −67.6% | $0 | −4.6% |
| 2017 | −5.4% | $0 | +21.7% |
| 2016 (part) | +83.1% | $0 | +4.0% |
"Paid out" is what your holding received that year. Month-end prices; no costs or taxes.
Key facts: PTGX total return
Data as of · Source: SmarterDividends data
- $10,000 invested in Protagonist Therapeutics (PTGX) at the end of Aug 2016, with dividends reinvested, was worth $120,608 at the end of Oct 2026: 27.8% a year, against $40,914 (14.9% a year) in the S&P 500.
- Over the 10 years to Oct 2026, PTGX turned $10,000 into $77,048 with dividends reinvested, 22.7% a year.
- Over the 5 years to Oct 2026, PTGX returned 36.0% a year with dividends reinvested (S&P 500: 12.0%).
- Taking PTGX's dividends as cash instead of reinvesting them, the same $10,000 ended at $120,608, including $0 of cash received; reinvesting added $0.
- PTGX's best calendar year in that time was 2020 (186.0%) and its worst 2022 (-68.1%), with dividends reinvested.
Cite this page
SmarterDividends, "Protagonist Therapeutics (PTGX) Total Return Calculator," updated Nov 6, 2026, https://smarterdividends.com/stocks/PTGX/total-return
PTGX total return questions
If I invested $10,000 in PTGX 10 years ago, how much would I have?
About $77,048 at the end of Oct 2026, with every dividend reinvested: 22.7% a year. Taking them as cash, you'd have shares worth $77,048 or so plus the cash you received. The same $10,000 in the S&P 500 became $41,633.
What is PTGX's total return since Aug 2016?
1106% in total, or 27.8% a year, through Oct 2026 with dividends reinvested. The share price alone rose 1106%.
How much of PTGX's return came from dividends?
About 0% of its yearly return since Aug 2016. Reinvesting them, rather than taking cash, left you $0 better off on a $10,000 start.
What was PTGX's worst year?
2022, at -68.1% with dividends reinvested (S&P 500: -18.2%). Its deepest fall from a peak, on month-end values, was -84.0%.
How is total return calculated here?
From month-end prices: the adjusted price counts every dividend reinvested in the month it was paid; the plain price doesn't. The S&P 500 is SPY with its dividends reinvested. No trading costs or taxes.
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