Yeah, must quote this. This market is not predictable and very high-volatile, moreover new highs are often seen after huge drops so you would risk to lose the big gains using stop losses when trend reverses itself. If you invested in many low-valued altcoins you should just consider that some could go to zero or near zero and hoping that with the other choices you will compensate losses on coin failures. It's better to point on dropped but value-oriented projects, supported by both strong development (GitHub) and community (Telegram\Discord and Twitter). Even if you don't buy the bottom I wouldn't put stop losses, because sooner or later a mega-pump could happen, when masses realize the project value and FOMO starts, and this can happen after historic lows.