How to plot PDF of a stable distribution using histogram?

Hello,

I want to plot PDF of a Levy distribution. The code I am using is provided below. I am not getting any histogram for a dataset of 10^6 values. However for 1000 or 100 samples histogram is generated. I want to get a PDF estimate of Levy distribution using histogram, How should I proceed?

clear all;
close all;
clc;
X11=random('Stable',0.5,1,5,5,[1,10^6]);
histogram(X11, 'normalization', 'pdf');