There is a hot topic about whether to invest in Solana ($SOL ) now and its possible increase by the end of the year. SOL performed very well in the first half of the year, rising nearly 10 times from a low of $15, which attracted the interest of many retail investors.

1. **Short-term trading**: If you focus on short-term trading, you can enter the market now. Short-term trading pursues rapid fluctuations and a few percentage points of profit within a day, and there are such opportunities every day. Even if $SOL can rise 10 times in the future, it is more important for short-term traders to pay attention to intraday fluctuations.

2. **Mid-term trading**: For mid-term traders, more factors need to be considered, such as whether SOL has major positive news in the near future or has become a market hotspot. If so, you can observe the daily market according to your trading system to find the buying point, formulate a strategy, and sell when the daily line shows a peak signal to lock in profits.

3. **Long-term investment**: Long-term investors need to consider more factors. At present, SOL has risen 701 times, with a market value of 627.3 billion US dollars, ranking fifth. If it can rise to the market value of Ethereum at $2 trillion, it is theoretically possible to rise another 4 times, but this requires an in-depth analysis of the fundamentals and future development of $SOL . If you are optimistic about SOL, whether you expect a 1x or 2x increase, you should buy on the pullback according to your trading system and sell when the peak signal appears.

Whether it is short-term, medium-term or long-term trading, having a clear trading system can greatly increase your chances of making money. Without an executable and replicable trading system, trading will become arbitrary.