Shares of National Financial Partners ( NFP) plummeted 20%, even after distributor of financial services products posted a profit of $10 million in the first quarter, vs. $8.5 million in the year-ago period. The stock was lost $5.61 to $22.46.

On Semiconductor ( ONNN) added $1.58, or 20.4%, to $9.40 after it forecast second-quarter sales well above Street expectations. The company said it expects revenue in the range of $545 million to $560 million, higher than analysts' expectations of $400.6 million.

Regional broker SWS Group ( SWS) jumped 14.6% to $16.02 after reporting its fiscal third quarter. The Dallas-based firm recorded increases in net income, EPS and net revenues after the market closed on Tuesday.

Falling, Kenneth Cole ( KCP), a New York purveyor of footwear and handbags, plummeted 21.4% to $14.42. The company reported first-quarter earnings of 4 cents a share on revenue of $122.5 million. The Street was looking for 3 cents a share. Kenneth Cole also guided for a loss between 11 cents and 13 cents a share for the second quarter, below the consensus estimate of an 8-cent per-share profit. CL King downgraded the stock to neutral from strong buy.

IT security company Vasco Data Security ( VDSI) jumped $1.03, or 10.1%, to $11.20 after an analyst at Jeffries upgraded the stock to buy from hold based the belief that the stock has been heavily discounted after it missed earnings compared to the company's guidance.

Meanwhile, OraSure Technologies ( OSUR - Get Report), which makes oral fluid specimen collectors, saw shares sink to new lows Wednesday, tumbling 17.7% to $5.41. The company after Tuesday's market close said first-quarter profit increased 35% year over year to $2 million, or 4 cents a share. Analysts had predicted 3 cents a share, but OraSure also guided for a second-quarter loss between 6 cents and 7 cents a share. The Street expects a loss of a penny a share.

This article was written by a staff member of TheStreet.com.