I think op meant more in a way, where Aldi would buy apartments near their new store, since having an aldi nearby raises realestate prices (in some specific cases of course).
Does insider trading apply to real estate in the same way that it does to securities?
It doesn't seem so different to any mixed-use project where a developer might construct a tower that is partly residential, partly commercial. Pretty sure a lot of large companies purchase residential around any major new HQ they intend to open, too.
[1] https://www.lebensmittelzeitung.net/handel/nachrichten/immob...