I wish! I have been stockholder for over 13 yrs. and have never received any discounts for WDW. Sometimes you get special offers, but nothing related to savings at the parks.
No, not at all amazing. There were a lot of people buying single shares of stock and getting hundreds of dollars in discounts from it. Again greedy people abusing the system ruin it for everyone else...
I've been a shareholder for 25 of my thirty years on this earth and ther used to be a Magic kingdom club Discount about 15 years ago had it both through my union and for Being a stock holder only used it once at Disneyland in 1989-90