The industrial developers are both reported to be considering raising money from the market.
The companies have both made stock exchange statements. Brixton said it noted "the recent movement in the company's share price", and that '"the board of Brixton is pursuing a range of options to provide additional financial flexibility, including disposals from its investment portfolio, as well as considering an equity raising".
Segro said it had made no decision on a rights issue but "will keep the market informed as appropriate".
Property shares fell abruptly on Feb 17 as markets reportedly got jittery about their ability to fund a plethora of rights issues. See additional reporting from Property Week.