Average investment per stock?
I was just reading a comment that said most people don't have $1000 to put into a stock. I think $1000 is about the smallest amount I'd consider for any position simply because of fees.
Personally, I'd say reduce the diversification if the amount you have to invest is small enough that $1000 per stock isn't doable. If I only had $2k to invest, I'd probably be looking at only one or two stocks to invest in and I don't care what anyone says about diversification. The fees are guaranteed to hurt you when you have a small amount to invest.
I broke a lot of "rules" when I was active in the market, like putting too many eggs in one basket kind of thing, so if I felt really confident, I'd go up to 20%, but I didn't stick around for losses, I'd exit by 10% down and I was fortunate that I don't think a single one of my picks did cliff diving while I was in it. A few did cliff diving after I was out of them, and given that I didn't see the cliff diving coming, I guess that's part of why I'm not in the market right now. I think the probablity of cliff diving for stocks is way, way up.
If any my stocks went under, I'd be spending hours checking them out further looking to see if I could find something I missed and I'd either exit or buy more That falling knife thing, I wasn't paying too much attention to it, I did my homework and was confident. I looked at that if it was a good deal at the price I originally paid, it was a better deal having gone down, or, there was a problem I need to find and exit. I did manage to get myself into two that made me feel ill, and so I just exited to find calm.
I guess about $1k was my smallest investment, and remains so.
So, survey here, what is your minimum investment in dollars and maximum in percent of your profile for a single stock?