[Solved]-Add new series to the top of a highcharts stacked column chart-Highcharts

You can set index and zIndex to keep order between layers, then add serie with appropriate parameters.

Example: http://jsfiddle.net/6bCBf/5/

var chart = new Highcharts.Chart({

    chart: {
        type: 'column',
        renderTo: 'container'
    },

    xAxis: {
        categories: ['Jan', 'Feb', 'Mar']
    },

    plotOptions: {
        series: {
            stacking: 'normal'
         }
     },    

    series: [
        {
            name: 'base',
            data: [10, 20, 30],
            index:2,
            zIndex:10
        },
        {
            name: 'sec',
            data: [30, 20, 10],
            index:1,
            zIndex:9
        }
    ]
},function(chart){



    $('#add').on('click', function (e) {

        chart.addSeries({
            data: [32, 43, 42],
            index: 0,
            zIndex:1
        });
    });


});