Swedish to English Bus/Financial Economics

Hello

In:

Han var mån om att skicka signalen till marknaden att Stora inte tänkte ***investera sönder*** högkonjunkturen och marknaden.

how can you "invest to breaking point the economic boom and market?"

I would have understood if you "investera sônder ett bolag" (over-invest and so maybe run into problems with the a high loan interest rate or have a cashflow problem) but not "invest to breaking point the boom"

Does anyone know how to interpret this segment please?

Thanks in advance