[Solved]-Loading several large dataset in Highcharts-Highcharts

Have you tried loading the daily data? If you have a data point for every day over the past 45 years then it's just 16,000 points. Regardless, I would start by first making sure loading everything is too much for highcharts and if so, consider a dynamic aggregation script where zooming past a threshold, say 5 years, triggers the data set to the aggregate set per week.

This is my potential solution:

Load the chart with the full resolution data set, the per week aggregate set, and maybe per month set. You then set an event listener on the number of points on the current view. When it reaches a certain threshold, you redraw to aggregate.

You won't really lose the chance to see drastic events on a specific day since aggregating 7 days will still show a significant enough peak. The user can then zoom in and see the more detailed data. Forty five year's worth of daily data reduces down to a few thousand points.

So, you're saying that you have 35year of data on daily basis. For me it's < 13k of points. And then you have chart, for example 600px wide. That means you have 20points on 1pixel. And you saying that aggregation is bad, because user need to see true data. Let me ask, how user will see that points, when will have 20 of them in 1px? Maybe I'm getting old, but I won't be able to see that points really good, just some 'fat path'. Compare these examples: http://jsfiddle.net/Fusher/4ytzuv7o/1/

Just disabled dataGrouping in a second example:

dataGrouping: {
    enabled: false
}

When you zoom-in in a first example, you will get true data anyway.

If you really can't use dataGrouping, then how about another solution? Disable navigator and 'All' button, to user will be able to zoom only at specified ranges, like this: http://jsfiddle.net/Fusher/4ytzuv7o/3/

$('#container').highcharts('StockChart', {
    rangeSelector: {
        inputEnabled: false,
        buttons: [{
            type: 'month',
            count: 1,
            text: '1m'
        }, {
            type: 'month',
            count: 3,
            text: '3m'
        }, {
            type: 'month',
            count: 6,
            text: '6m'
        }, {
            type: 'ytd',
            text: 'YTD'
        }, {
            type: 'year',
            count: 1,
            text: '1y'
        }],
        selected: 0
    },
    navigator: {
        enabled: false   
    },
    series: [{
        name: 'AAPL',
        data: data,
        dataGrouping: {
            enabled: false   
        }
    }]
});