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$PTGX

Protagonist Therapeutics, Inc

XNAS•Health Care•Pharmaceutical Preparations

$144.07+4.92%+$6.75Prev $137.32LIVE Full chart Live alerts
No recent price bars, the chart lights up when PTGX starts printing.

Why is PTGX up today? It is at $144.07 (+4.92%), and our scanner flagged it 12 times on unusual volume this month. See the catalyst behind the move, real-time alerts the moment PTGX spikes, and full due diligence on PTGX — key stats, earnings, dilution and insider activity. Free.

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Our scanner flagged $PTGX 12 times in the last 30 days. Create a free account to track $PTGX, build a watchlist, and get instant unusual-volume alerts — plus 5 free premium days, no card needed.

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Key Stats

Price & performance
Price
$144.07
Change today
+4.92%
Previous close
$137.32
52-week range
$50.48 – $143.29
Valuation & dividend
Market cap
$8.89B
Ownership & volume
Shares outstanding
64.7M
SEC · as of 2026-07-31 · 6d ↗
Insider ownership
5.4%
DEF 14A · 2026-04-28 ↗
Institutional own.
99.9%
Total held
100.0%
Short interest
8.3M
▲ +8% vs prior · as of 2026-07-15
Days to cover
9.5d
Avg daily volume
872K
Classification
Sector
Health Care
Industry
Pharmaceutical Preparations
Exchange
XNAS
Relative volumevs this time of day
5m
0.6x
15m
1.1x
1h
1.1x
1D
0.1x

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Why is $PTGX up today?

SEC filing

Here is the latest on PTGX from our scanner (live price and day move above). Fresh from the SEC: Protagonist Therapeutics, Inc filed a Quarterly report (10-Q). A material company disclosure like this is often the real catalyst behind a move of this size.

Likely catalystQuarterly report (10-Q), from the latest SEC filing. Read it →
Why is $PTGX moving? →▶ Replay the moveAuto-generated from live scanner data. Not investment advice.
Trading profile⚡ Ultra-low floatShortableEasy to borrowNo SSRBorrow via Alpaca · SSR from Reg SHO 201

$PTGX Sentiment

Bullish
Bearish92Bullish
📰 News: 2 bull · 0 bearToday: +4.9%👥 Community: 0 bull · 0 bear

Blend of news sentiment, today’s move, and community votes. Not investment advice.

$PTGX Activity

News, unusual-volume alerts, AI-trader trades and community chatter — the whole story, newest first.

News· SEC EDGAR· 18h ago
Protagonist Therapeutics, Inc filed a Quarterly report (10-Q)
News· SEC EDGAR· 18h ago
Protagonist Therapeutics, Inc: Reports Second Quarter 2026 Financial Results and Provides Corporate Update
Alert· 18h ago +1.2% vs EMA
PTGX 200EMA (5m) Trending · 75 bars · L3 · +1.16% above EMA · slope +0.08%
at $137.32
Alert· 20h ago +0.2% vs EMA
$PTGX near 200 EMA: +0.20% from 200 EMA at 2:19 PM ET
at $136.63
Alert· 20h ago 9.3× RVOL
PTGX hit 9.282x RVOL at 2:19 PM ET
at $136.63
Alert· 22h ago 27.6× RVOL
PTGX hit 27.582x RVOL at 12:11 PM ET
at $136.45
Alert· 1d ago +1.5% vs EMA
PTGX 200EMA (1m) Trending · 58 bars · L3 · +1.50% above EMA · slope +0.35%
at $137.14
Alert· 1d ago +1.5% vs EMA
PTGX 200EMA (1m) Trending · 58 bars · L3 · +1.50% above EMA · slope +0.35%
at $137.14
Alert· 1d ago +1.5% vs EMA
PTGX 200EMA (1m) Trending · 58 bars · L3 · +1.50% above EMA · slope +0.35%
at $137.14
Alert· 1d ago +0.6% vs EMA
$PTGX near 200 EMA: +0.61% from 200 EMA at 1:33 PM ET
at $134.69
Alert· 1d ago 3.9× RVOL
PTGX hit 3.850x RVOL at 1:33 PM ET
at $134.69
Alert· 2d ago 3.2× RVOL
PTGX hit 3.166x RVOL at 3:06 PM ET
at $133.01
Alert· 5d ago +0.3% vs EMA
$PTGX near 200 EMA: +0.27% from 200 EMA at 2:09 PM ET
at $136.36
Alert· 5d ago 6.8× RVOL
PTGX hit 6.826x RVOL at 2:09 PM ET
at $136.36
Alert· 5d ago +0.2% vs EMA
$PTGX near 200 EMA: +0.20% from 200 EMA at 12:34 PM ET
at $135.91
Alert· 5d ago 5.4× RVOL
PTGX hit 5.372x RVOL at 12:34 PM ET
at $135.91
Alert· 5d ago 2.9× RVOL
PTGX hit 2.903x RVOL at 11:50 AM ET
at $134.83
Alert· 6d ago +2.1% vs EMA
PTGX 200EMA (1m) Trending · 61 bars · L3 · +2.10% above EMA · slope +0.34%
at $138.54
Alert· 6d ago +1.0% vs EMA
PTGX 50EMA (1m) Trending · 60 bars · L3 · +1.03% above EMA · slope +0.69%
at $138.54
Alert· 6d ago +1.0% vs EMA
PTGX 50EMA (1m) Trending · 60 bars · L3 · +1.03% above EMA · slope +0.69%
at $138.54
Alert· 6d ago 3.3× RVOL
PTGX hit 3.299x RVOL at 3:29 PM ET
at $137.72
Alert· 9d ago 3.3× RVOL
PTGX hit 3.254x RVOL at 2:30 PM ET
at $136.62
Alert· 13d ago 6.0× RVOL
PTGX hit 6.024x RVOL at 2:07 PM ET
at $136.60
Alert· 16d ago 2.0× RVOL
PTGX hit 2.000x RVOL at 3:35 PM ET
at $135.97
Alert· 16d ago 5.8× RVOL
PTGX hit 5.840x RVOL at 12:27 PM ET
at $138.62
News· SEC EDGAR· 48d ago
Protagonist Therapeutics, Inc filed an 8-K: Executive / Board Change, Shareholder Vote
News· SEC EDGAR· 92d ago
Protagonist Therapeutics, Inc filed a Quarterly report (10-Q)
News· GlobeNewswire Inc.· 105d ago Bullish
Polycythemia Vera Market Set for Transformation: Key 9 Companies Expected to Enter by 2036 | DelveInsight
News· The Motley Fool· 126d ago Neutral
This Healthcare Stock Barely Flinches During Market Sell-Offs
News· Benzinga· 140d ago Bullish
Johnson & Johnson-Protagonist Therapeutics Partnered New Psoriasis Pill Wins FDA Nod, Shakes Up Competition With AbbVie
News· The Motley Fool· 161d ago Neutral
Protagonist Stock Up 120%, but One Fund Just Revealed a $170 Million Exit

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PTGX stock FAQ

Why is $PTGX up today?

Here is the latest on PTGX from our scanner (live price and day move above). Fresh from the SEC: Protagonist Therapeutics, Inc filed a Quarterly report (10-Q). A material company disclosure like this is often the real catalyst behind a move of this size.

What is the PTGX stock price today?

PTGX last traded at $144.07, up 4.92% on the day. The price and chart above update live during market hours (4 AM to 8 PM ET).

Where can I see live PTGX alerts?

The PTGX Live Alerts panel on this page streams real-time unusual volume (RVOL), momentum, halt and 200-EMA alerts from our scanner the moment they fire. Our scanner has flagged PTGX 12 times in the last 30 days.

What exchange is PTGX on?

PTGX (Protagonist Therapeutics, Inc) trades on XNAS, with a market cap of about $8.89B in the PHARMACEUTICAL PREPARATIONS sector.

Is PTGX good for day trading?

That depends on your strategy and risk. Day traders look for volume, volatility and a clear trend. Use the live chart, RVOL alerts and 200-EMA context on this page to judge PTGX for yourself. This is not investment advice.

Live data from TheDesperateTrader scanner. Not investment advice.