The Los Angeles Business Journal’s index of largest local public companies gained slightly for the week.

The weighted LABJ Stock Index closed up 0.69 percent to 189.1 for the trading week ended March 28. Gainers outpaced decliners 82 to 71, with seven companies unchanged.

Among the biggest gainers was MannKind Corp., which jumped 32 percent to $6.87. A Food and Drug Administration advisory panel recommended the agency approve the Valencia biotech’s Afrezza inhalable insulin device despite some concerns about side-effects.

Mandalay Digital Group Inc. fell 8.4 percent to $3.70 after the Hollywood mobile-software products company provided guidance for its fiscal year ending next March.