In stock futures, long-term and medium-term traders usually do a lot of research and preparation to ensure that they make wise and accurate decisions in trading. The following are some possible activities:

1. Fundamental analysis: Traders will study the fundamentals of stocks or futures, including the company's financial situation, industry trends, macroeconomic factors, etc. , determine the basic reasons for investment.

2. Technical analysis: They will analyze the price trend chart to understand the past price trend, support level and resistance level, technical indicators, etc. , so as to judge the future price trend.

3. Market sentiment analysis: They will pay attention to market sentiment, including investor behavior, media reports and social media discussions. , understand market trends and possible reversal signals.

4. Risk management: They will formulate strict risk management plans to control investment risks and ensure that they can remain calm under unfavorable market conditions.

5. trading plan: they will make a clear trading plan, including the conditions of buying and selling, stop loss and take profit, etc. To ensure that decisions can be made quickly in the transaction.

6. Keep learning and improving: They will keep learning and improving their trading skills to adapt to the changes in the market and improve their trading performance.