Some stocks (and other traded instruments) are both overvalued and some actually undervalued -- hypothetically. Real valuation is market value.
If you borrow from a lender at interest to make investments or speculations in the financial markets you stand a good chance of having the choice between jumping out a 20th+ floor window or filing for bankruptcy
Historically, lowered interest rates have been seen to inflate stock values and high interest rates, usually with accompanying inflation, depressing stock values. The US elections are also influencing stock prices right now.
Economic policy will probably change after the US elections with regard to the US based exchanges. Latest Soros news:
Soros Buys Stake in Liberty Broadband, Sells Barrick Gold - Bloomberg
There is a new technology that will allow 1-10 Gbps multiplexing on last mile coax cable. Last I head it was theoretical
There are also new advancements in Li-ion battery technology:
https://techcrunch.com/2016/08/19/ne...hinner-phones/
search 'brexit auto industry' if you are looking to make short sales or buy put options.
Luddites and old-school investors beware :OP