Well yeah noticed this too... what I can say more is that Vertcoin with this accident is not alone...
meaning in same time other coins like doge and drk (maybe even others as well) happened to had same accident...
So looks like someone (who knows maybe exchange making huge cold storages?) accumulating in one address for each coin all savings... pretty HUGE ones...

I am not afraid that this someone will dump it etc but I hope its nothing like big stealing action ...