For me, just trying to diversify from the stock market, I was thrilled to make stock market type returns (8-ish per year) with less risk than stocks.

Why is there so much real estate stock?

When you say PVC stocks, are you referring to if the piping in general is made of PCV instead of cast iron?

I also own a stock portfolio."

RE can appear more risky to some because it isn't liquid like stocks and frankly, most people don't know the 1st thing about RE.

If it was a hot stock, you would have already liquated your position.   

I'm sure you wouldn't buy stock in a company that had declining sales, is losing money and employees are leaving in droves but is in your backyard.

We are not affiliated with roof stock directly, but we met a representative and wanted to try out the platform. 

I understand you are taking care of their property, keeping it stocked with food items, toiletries and fresh linens.

If it is trapped in the employer plan provider and conventional stocks, then you would have in the future a nice chunk you have saved up, that can then be moved into a self-directed plan of your choosing once you leave this employer.