Merix ( MERX) shares jumped in late trading Thursday after the printed-circuit-board maker posted third-quarter earnings that beat expectations and offered strong guidance. The company posted income of $809,000, or 4 cents a share, up from $393,000, or 2 cents a share, a year earlier. Excluding certain items, earnings were $2.7 million, or 14 cents a share -- well above Thomson First Call's mean analyst estimate of 2 cents. Sales for the February quarter rose to $95.1 million from $50 million, beating Wall Street's target of $89.2 million. For the fiscal fourth quarter, Merix forecast earnings of 11 cents to 15 cents a share, before items, on sales of $91 million to $95 million. The outlook surpasses analysts' projection for a profit of 2 cents a share and sales of $87.8 million. Shares gained $1.94 or 17.70% to $12.90 in after-hours trading. Shares of Directed Electronics ( DEIX) surged after the vehicle security company beat Wall Street's fourth-quarter estimates. The company reported a loss of $10.3 million, or 51 cents a share, compared with earnings of $7.1 million, or 38 cents a share, a year ago. Excluding several charges, however, earnings were $11.1 million, or 55 cents a share. Sales increased to $135.5 million from $80.1 million. Analysts polled by Thomson First Call predicted earnings of 45 cents a share, before items, and sales of $114.4 million. For the first quarter, the company forecast earnings of 12 cents to 13 cents a share, with sales of $69 million to $71 million. Analysts project earnings of 14 cents a share and sales of $67 million. For the full year, Directed Electronics sees earnings of 97 cents to $1 a share, compared with analysts' target of 94 cents. Shares gained $1.45, or 9.2%, to $17.22 in after-hours trading.