Applix ( APLX) shares surged 19% after the software company reported its GAAP-based income more than doubled to $6 million, or 34 cents a share, in the fourth quarter. Excluding items, earnings came to $3 million, or 17 cents a share. A year ago the company reported earnings of $2.5 million, or 15 cents a share. Revenue shot up 45% from a year ago to $16 million. Analysts polled by Thomson Financial were looking for 14 cents a share on revenue of $14.9 million. Shares of the Westborough, Mass., company were gaining $2.07 to $12.96. Trio-Tech International ( TRT), which makes semiconductor testing equipment, said its income from continuing operations totaled $799,000, or 25 cents a share, for the fiscal second quarter, up from a loss of $446,000, or 15 cents a share, last year. Last year, earnings available to common shareholders was higher, totaling $8.4 million, or $2.76 a share, but shares of the Van Nuys, Calif., company were rising $2.62, or 23.1%, to $13.98. Jaco Electronics ( JACO) swung to a profit in the quarter ended Dec. 31 and brought in a top line of $66 million, a 37% rise from last year. The Hauppauge, N.Y., electronics distributor had a profit of $149,000, or 2 cents a share, up from last year's heavy losses of $7.4 million, or $1.17 a share. Jaco stock was up 57 cents, or 16.6%, to $4.02.