This week's biggest gainers & losers (May 19 - 23, 2014)

The following are some of today's most notable movers of interest, categorized by market capitalization (large cap over $10 billion and mid cap between $2-10 billion) and ranked by % change (all stocks over 100K average daily volume).

Large Cap Gainers

• HPQ (33.75 +6.21%): Reported Q2 EPS of $0.88 (in-line), revs fell 1.0% yoy to $27.31 bln vs $27.43 bln estimate; sees Q3 EPS of $0.86-0.90 vs $0.90 estimate; raises FY14 EPS guidance to $3.63-3.75 (from $3.60-3.75) vs $3.71 estimate
• DISCA (78.1 +2.97%): Disclosed it will repurchase from Advanced/Newhouse Programming Partnership shares of the co's Series C convertible participating preferred stock
• WIT (11.43 +2.24%): Upgraded to Equal Weight from Underweight at Barclays

Large Cap Losers

• ORAN (16.33 -2.39%): Downgraded to Hold from Buy at Societe Generale
• BSMX (13.82 -2.06%): Filed for a Series B offering of ADRs by selling shareholders for an undisclosed amount
• CAJ (32.16 -1.68%): Downgraded to Underperform from Perform at Credit Suisse

Mid Cap Gainers

• ISIS (27.6 +10.62%): Mentioned positively at Piper Jaffray
• GTAT (15.97 +8.20%): Seeing reports that Samsung and LG may use sapphire display technology in more smartphones
• NDSN (80.88 +8.01%): Beat quarterly EPS by $0.07 ($0.96 vs $0.89 estimate), revs rose 9.2% yoy to $417 mln vs $407.27 mln estimate

Mid Cap Losers

• ARUN (17 -15.25%): Reported Q3 EPS of $0.20 ex items vs $0.20 estimate, revs rose 28.3% yoy to $188.8 mln vs $180.78 mln estimate, gross margin declined 170 basis points from prior quarter to 70.5%
• YOKU (19.17 -6.03%): Beat quarterly EPS by $0.06 (-$0.41 per ADS ex items vs -$0.20 estimate), revs rose 36.0% yoy to $112.7 mln vs $114.37 mln estimate; sees Q2 revs of RMB 940 mln to RMB 1 bln vs ~RMB 1.01 bln estimate
• CPWR (10.01 -3.66%): Beat quarterly EPS by $0.02 ($0.10 ex items vs $0.08 estimate), revs fell 0.5% yoy to $183.4 mln vs $211.23 mln estimate; sees FY15 EPS of $0.41-0.45 ex items vs $0.42 estimate, revs of $720-735 mln vs $762.13 mln estimate