The whole cryptosphere and investors are bleeding due to how bad the market seems. It's not about investing in top 30 altcoin, it should be invest only in bitcoin and etheruem and have hope of good fortune soon. As the market price is going, I don't think other altcoin will yield much profit cos many of the top altcoin are loosing their potential gradually
I think investing in the top coins will reduce a lot of risks but also need to be careful because this market is currently very volatile. In fact, I only hold Bitcoin and Ethereum for the time being as these are two coins that tend to increase together if the market grows. However, the crypto market often goes against investors minds, so it is difficult to predict.