Prothena Corp. Plc (PRTA)

10.83
0.11 1.01
NASDAQ
Prev Close 10.94
Open 10.91
Day Low/High 10.71 / 11.10
52 Wk Low/High 8.63 / 44.75
Volume 96.67K
Exchange NASDAQ
Shares Outstanding 39.86B
Market Cap 445.68M
Div & Yield N.A. (N.A)

Latest News

With Martin Shkreli Long Gone, Retrophin is an 'Interesting Opportunity'

With Martin Shkreli Long Gone, Retrophin is an 'Interesting Opportunity'

Retrophin (RTRX), the biotech company that used to be run by indicted hedge fund manager Martin Shkreki, provides an interesting investment opportunity.

Playing Biotechs with the House's Money

Playing Biotechs with the House's Money

Here's how to lock in gains on risky small-cap biotechnology stocks.

Where the Money Was Made the Last 5 Years

Where the Money Was Made the Last 5 Years

Only one fund category (of 20) has beaten the S&P 500 over half a decade.

Questions on Restaurant Ratings

Markets still down at mid-day but up off the lows coinciding with the close of the European stock markets. Following up on my comments on picking up a few more shares earlier today in United Rentals (URI) on recent weakness. The rental side of the h...

Bought a Few More United Rentals

Markets have fallen since our last update, with the Dow off triple digits as we are two hours into the trading day. Oil is having a nice day, up approximately 3% and approaching $60 a barrel again on WTI.  Not surprisingly, energy sector outperformi...

Watch the Dollar and Supply

The weak dollar was the breeze that pushed the market higher.

Backing Away From Biotechs

This sector could see some real damage.

Biotech Stocks at a Crossroad

Own them, or take something off the table?

The Next Biotech Breakout?

As always, I am happy to be standing in for Doug Kass today on the Daily Diary (this Friday from sunny Miami). It looks like it will be an up open to talk about based on early market futures. The euro is heading towards its best week in 18 months, e...

These Stocks Get Benefit of the Doubt

Market backtracks on skepticism over biotechs.

Two Small-Cap Biotechs To Consider

Two Small-Cap Biotechs To Consider

Fibrocell Science and Prothena have several 'shots on goal.'