50% for holding, 45% for long-term trading and 5% for day trading.
+1, sounds good, just need to mention that 5% might not be enough, if your trading amount is not so big.
I prefer 20% for scalping, and I hold around 30% in a bitcoin just to have it (in case if it gets.. hmm.. 50 000??)) and other 50% I use for.. let's call it medium-term trading. And it's true, that scalping is not for those, who are lack of time and attention.
yeah 5% may not be matter if your money is big enough, and I think the percentage of fund allocation will depend on your time, skill and knowledge also, if your spare time is much and have skill in day trading maybe you can add more fund allocation for scalping, whereas if you do not have a lot of knowledge and your time is limited then allocate more funds in long term, that's my strategy so far