Is there any index fund that is tied to the US GDP growth? It seems to me that most index funds basically consist of stocks and bonds. But are there any index funds that also invest in real estate, international, etc.
Basically what I'm looking for is a fund more diversified than just stocks and bonds. I already have significant cash invested in index funds like Fidelity Spartan and and in Vanguard ones. But every few months I have around $10,000 saved up to have to invest somewhere. And now I'm getting a bit worried about just keep putting the money in the same few index funds.