Glendale-based Apollo Medical Holdings Inc. was the week’s biggest gainer, rising 29 percent to close at $4. Guidance Software Inc., the Pasadena investigative software company, also saw big gains, shooting up 24.9 percent to close the week at $6.81. The week’s biggest laggard was Commerce-based furniture maker Nova Lifestyle Inc., which sank 25.4 percent to close at $2.41.