Unfortunately, no. There's no way I know of to get reports on multiple VM's at the same time. What you can do is get a report on a parent object that would encompass the virtual machines, but that would be an averaged report based on all of the virtual machines, and not the virtual machines directly.
There are other means you can attempt, such as using powershell toolkit to gather performance stats on vm's individually. Or you can get the data out of the vc db directly, if you are SQL and programatically inclined. You can use sql reporting services, if you have that running, or there are some commercial and open source tools that may help get that data, but it can't currently be done through vc directly.
-KjB
vExpert/VCP/VCAP
vmwise.com / @vmwise
-KjB