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PTGX

Protagonist Therapeutics, Inc. Healthcare As of 2026-08-06 Updated daily after market close

quality needs a look, discounted valuation.

2 active signals
52-week adjusted-price high Top-quintile 6-month momentum
This page refreshes daily after the close. Add Protagonist Therapeutics, Inc. to your watchlist to track signal changes on your next visit.
Valuation 47Quality 16Growth 7Momentum 95Risk / liquidity 65

Is Protagonist Therapeutics, Inc. a buy? Fundamentals and valuation first

  • Quality is weaker than peers. Operating margin is only around the 10th percentile. TTM ROE is about -17.5%.

  • Valuation is cheaper than most peers. TTM P/E is in the 4th percentile, lower than most liquid US common stocks.

  • Recent volatility is moderate. 60-day annualized volatility is near the 53th percentile. Average 20-day dollar volume is about $79.1M.

  • Signals are active now. 52-week adjusted-price high, Top-quintile 6-month momentum currently holds; the tables below show what followed in this stock’s own history.

Historical evidence

Signals active now

Each active condition is tested against this stock’s own history and benchmarked versus the S&P 500.

52-week adjusted-price high

Active

Adjusted close first reaches a 252-trading-day high; repeated hits within 20 days count once.

23 historical occurrences (since 2018-01-29)
Average forward return after 52-week adjusted-price high。20-day: Win 47.8%, Sample 23, Median -0.25%, Excess -3.03%, Beat mkt rate 43.5%；60-day: Win 50%, Sample 22, Median +0.55%, Excess -6.56%, Beat mkt rate 40.9%；120-day: Win 66.7%, Sample 21, Median +12.18%, Excess -1.46%, Beat mkt rate 52.4%

120 days after: historical avg +7.77%

20-day -1.98%
60-day -1.36%
120-day +7.77%
20-day
60-day
120-day
Win
47.8%
50%
66.7%
Sample
23
22
21
Median
-0.25%
+0.55%
+12.18%
Excess
-3.03%
-6.56%
-1.46%
Beat mkt rate
43.5%
40.9%
52.4%

Over 21 occurrences, 120-day forward avg gained 7.77%, lagged the market by 1.46 pts; win rate 66.7%.

Top-quintile 6-month momentum

Active · now 94.47278911564626%

The stock ranks in the top 20% of the liquid US common-stock universe by 126-day adjusted return.

24 historical occurrences (since 2017-02-10)
Average forward return after Top-quintile 6-month momentum。20-day: Win 54.2%, Sample 24, Median +3.76%, Excess +0.1%, Beat mkt rate 50%；60-day: Win 56.5%, Sample 23, Median +8.4%, Excess +4.95%, Beat mkt rate 52.2%；120-day: Win 72.7%, Sample 22, Median +15.34%, Excess +13.63%, Beat mkt rate 59.1%

120 days after: historical avg +21.37%

20-day +1.41%
60-day +9.14%
120-day +21.37%
20-day
60-day
120-day
Win
54.2%
56.5%
72.7%
Sample
24
23
22
Median
+3.76%
+8.4%
+15.34%
Excess
+0.1%
+4.95%
+13.63%
Beat mkt rate
50%
52.2%
59.1%

Over 22 occurrences, 120-day forward avg gained 21.37%, beat the market by 13.63 pts; win rate 72.7%.

Market-wide momentum baseline

Across 98,056 liquid US common-stock samples, top-quintile 6-month momentum was followed by an average 60-trading-day return of +6.18%, a 58.1% positive-return rate, and +2.82 percentage points of average excess return versus the S&P 500.

Baseline: weekly samples since 2016 where a liquid US common stock ranked in the top quintile by 126-trading-day momentum. Forward return is 60 trading days; excess return is versus S&P 500 (^GSPC).

Signals not active now

Inactive signals still show the stock-specific historical forward-return distribution for context.

Filed revenue acceleration

Pending

TTM revenue growth is at least 10% and improved versus the prior filed quarter; event date is the SEC filing date.

7 times historically; 60-day forward avg +13.88%, win rate 85.7%, beating the market by +11.42 pts on average.

EPS surprise beat

Pending

Reported EPS beat consensus estimate by at least 5%; event date is the earnings-surprise timestamp.

17 times historically; 60-day forward avg +15.41%, win rate 70.6%, beating the market by +11.59 pts on average.

Method and limits

  • Returns use us_price:adj_close, adjusted for splits and dividends where available.
  • Excess returns use world_index:^GSPC as the S&P 500 benchmark proxy.
  • Quarterly fundamentals are aligned to SEC filing dates before daily valuation studies.
  • The promoted universe starts from active NYSE/NASDAQ common stocks, then applies price and dollar-volume gates.
  • Snapshot-only tables such as analyst consensus, DCF, us_ratios, and us_key_metrics are intentionally excluded from historical evidence.
  • Overlapping event windows are descriptive distributions, not independent samples.

This page is for historical data analysis and education only. It is not investment advice. Backtests and historical return distributions do not predict future performance; evaluate risk independently before trading.