A dirty fix for UP state detection: https://github.com/highslide-software/highcharts.com/pull/1489

highstock.upstate.patch.js

// This patch changes the way Candle's UP state is detected
// Instead of comparing it to the previous candle, we just compare CLOSE and OPEN
// values here

(function(HC) {

  var seriesTypes = HC.seriesTypes;

  seriesTypes.candlestick.prototype.getAttribs = function () {
    seriesTypes.column.prototype.getAttribs.apply(this, arguments);

    var series = this,
      options = series.options,
      stateOptions = options.states,
      upColor = options.upColor || series.color,
      seriesDownPointAttr = HC.merge(series.pointAttr),
      upColorProp = series.upColorProp,
      points = series.points || [],
      length = points.length,
      isUpDay,
      point,
      i;

    seriesDownPointAttr[''][upColorProp] = upColor;
    seriesDownPointAttr.hover[upColorProp] = stateOptions.hover.upColor || upColor;
    seriesDownPointAttr.select[upColorProp] = stateOptions.select.upColor || upColor;

    for (i = 0; i < length; i++) {
      point = points[i];
      isUpDay = point.close > point.open;

      if (isUpDay) {
        point.pointAttr = seriesDownPointAttr;
      }
    }
  }

}(Highcharts));