Trading or HODL
The goal of most investors generally is to buy low and sell high. This can result in two quite different approaches to equity investing.
One approach is described as "trading." Trading involves following the short-term price fluctuations of different stocks closely and then trying to buy low and sell high. Traders usually decide ahead of time the percentage increase they're looking for before you sell (or decrease before they buy).
While trading has tremendous potential for immediate rewards, it also involves a fair share of risk because a stock may not recover from a downswing within the time frame you'd like—and may in fact drop further in price. In addition, frequent trading can be expensive, since every time you buy and sell, you may pay broker's fees for the transaction.
Be aware that trading should not be confused with "day trading," which is the rapid buying and selling of stock to capitalize on small price changes. Day trading can be extremely risky, especially if you attempt to day trade using borrowed money. Individual investors frequently lose money by trying to use this approach.
A very different investing strategy—called buy-and-hold—involves keeping an investment over an extended period, anticipating that the price will rise over time. While buy-and-hold reduces the money you pay in transaction fees and short-term capital gains taxes, it requires patience and careful decision-making. As a buy-and-hold investor, you generally choose tokens based on a company's long-term business prospects. Increases in the coin price over years tend to be based less on the volatile nature of the market's changing demands and more on what's known as the company's fundamentals, such as its earnings and sales, the expertise and vision of its management.
Such a strategy can be super profitable. Here are some examples:
Spectrecoin +48228%
Neo +90450%
Ethereum +95390%
IOTA +105505%
NXT +391776%
(data for the end of 2017)
And how do you think, share your views on the pros and cons of trading and long-term hold in the comments.
I think you should not buy and hold at this time of the market, the market is in the down trend so the price of bitcoin and altcoin will be able to keep falling very strongly, you should be careful before all variables price of bitcoin. If you keep the long-term, the higher your losses, the more losses you will have. At this point you should only trade short and finish the day trading.