Does anyone know specifics of which funds are large cap funds, small cap, and midcap? What is an index fund? Also, does anyone have any recommendation of percentages to put each in..... for example, the choices are dodge & cox s&p 500 index fund diversified equity fund capital growth fund large company groth fund s&p midcap index fund diversified small cap fund nasdq-100 index euopacific growth fund asset allocation fund **there are a few more choices but you get the idea....any advice, I am very young so I have a long time before retirement