Insider Trading And Following Trade / Investment Advice
How about investing in penny stocks whose share price fall and rise many folds in just few minutes/hours without being part of a group which raises the price by buying collectively and also without being part of Inside trading.
The is nothing ethically objectionable if one is spending in penny stocks on his own without any part in the insider trading bit. Since they are highly speculative investments, one should take all the precautionary measures to mitigate the risks involved.