$PACB
Pacific Biosciences of California, Inc.
XNAS•Other•Laboratory Analytical Instruments
Why is PACB down today? It is at $1.27 (-0.78%), and our scanner flagged it 177 times on unusual volume this month. See the catalyst behind the move, real-time alerts the moment PACB spikes, and full due diligence on PACB — key stats, earnings, dilution and insider activity. Free.
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Key Stats
- Price
- $1.27
- Change today
- -0.78%
- Previous close
- $1.28
- 52-week range
- $1.07 – $2.73
- Market cap
- $421M
- Shares outstanding
- 310.8M SEC · as of 2026-07-31 · 33d
- Institutional own.
- 68.63%
- Total held
- 70.0%
- Tradeable float
- 93.2M 30% of shares · after 1% insiders + 69% institutions
- Short interest
- 53.4M ▲ +9% vs prior · as of 2026-08-14
- Short % of float
- 57.3%
- Days to cover
- 6.6d
- Avg daily volume
- 7.2M
- Sector
- Other
- Industry
- Laboratory Analytical Instruments
- Exchange
- XNAS
- 5mthin
- 14x
- 15mthin
- 16x
- 1hthin
- 16x
- 1D
- 0.1x
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Why is $PACB down today?
PACB is one of today's most active names, trading on unusually heavy volume (live price and day move above). Our scanner has fired 2 unusual-volume and momentum alerts on PACB today, peaking at 32.6x its normal volume.
Analyst data via Nasdaq. Not investment advice.
Dilution watch
UnavailableWe could not reach SEC EDGAR, so the dilution check did not run for $PACB. This is not a clean result: there may be an offering, a registration or a shelf on file that we were unable to read. Check it yourself on SEC EDGAR before trading it.
$PACB Sentiment
NeutralBlend of news sentiment, today’s move, and community votes. Not investment advice.
$PACB Activity
News, unusual-volume alerts, AI-trader trades and community chatter - the whole story, newest first.
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PACB stock FAQ
Why is $PACB down today?
PACB is one of today's most active names, trading on unusually heavy volume (live price and day move above). Our scanner has fired 2 unusual-volume and momentum alerts on PACB today, peaking at 32.6x its normal volume.
What is the PACB stock price today?
PACB last traded at $1.27, down 0.78% on the day. The price and chart above update live during market hours (4 AM to 8 PM ET).
Where can I see live PACB alerts?
The PACB 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 PACB 177 times in the last 30 days.
What exchange is PACB on?
PACB (Pacific Biosciences of California, Inc.) trades on XNAS, with a market cap of about $421M in the LABORATORY ANALYTICAL INSTRUMENTS sector.
Is PACB 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 PACB for yourself. This is not investment advice.
Live data from TheDesperateTrader scanner. Not investment advice.