This is a macro phenomenon and will stop soon since the central bank has stopped printing money. Since 2008 major Central Banks are actively buying bonds in dro

This is a macro phenomenon and will stop soon since the central bank has stopped printing money. Since 2008 major Central Banks are actively buying bonds in droves which companies use to buy back their stock and as a result increase prices of their stock. The passive strategy will not work anymore now because companies with high capital costs will get hammered.