Afternoon Movers for Tuesday, March 18th, 2014 - FutureFuel (NYSE:FF), FactSet Research Systems (NYSE:FDS)

Moving up:

Penn Virginia PVA - up 15% - Soros raises stake, wants management to consider options.
FutureFuel FF - up 14.2% - Reported a rise in its fourth-quarter earnings. FutureFuel posted its quarterly profit of $0.61 per share, versus a year-ago profit of $0.15 per share.
FactSet Research FDS - up 8.2% - Reported its Q2 earnings of $1.22 per share, versus analysts' estimates of $1.20 per share.
Tsakos Energy TNP - up 8.1% - Momentum on Tuesday continuing after the company beat revenue estimates Monday morning.

Moving down:

Plug Power PLUG - down 8.6% - Shares remain volatile as traders take profits in this momentum name.
ParkerVision PRKR - down 8% - Reported Q4 EPS of $(0.08) versus the estimated $(0.06), missing by $0.02. EPS were Down 33% from the same quarter last year.
Shutterfly SFLY - down 5.2% - Downgraded by Cowen & Company from Outperform to Underperform and lowered the price target from $57 to $39.