【中文版】

if1209是一种股指期货，它是以沪深300指数为标的物的股指期货合约。if1209表示的是2012年9月到期交割的沪深300股指期货合约。

沪深300指数是由上海证券交易所和深圳证券交易所联合发布的反映沪深两市整体走势的指数，涵盖了沪深两市的大部分上市公司，具有广泛的市场代表性。因此，以沪深300指数为标的物的股指期货合约也具有较高的市场影响力和投资价值。

if1209合约的交易单位为每点人民币300元，最小变动价位为0.2点，合约的交割方式为现金交割。投资者可以通过买入或卖出if1209合约来获得投资收益，或者对冲相应的股票组合风险。

if1209合约的推出，为投资者提供了更加丰富的投资工具和风险管理手段。通过股指期货的交易，投资者可以更加灵活地管理股票组合的风险，同时也可以利用股指期货进行套期保值、套利等投资策略的操作。

总之，if1209是一种以沪深300指数为标的物的股指期货合约，具有较高的市场影响力和投资价值。它的推出为投资者提供了更加丰富的投资工具和风险管理手段，有助于投资者更好地管理资产和实现投资目标。

【英文版】

if1209 is a stock index futures contract, which is based on the Shanghai and Shenzhen 300 index. if1209 represents the Shanghai and Shenzhen 300 stock index futures contract that expires and delivers in September 2012.

The Shanghai and Shenzhen 300 index is jointly released by the Shanghai Stock Exchange and Shenzhen Stock Exchange to reflect the overall market trend of both markets, covering most listed companies in Shanghai and Shenzhen, and thus has broad market representation. Therefore, the stock index futures contract based on the Shanghai and Shenzhen 300 index also has high market influence and investment value.

The trading unit of the if1209 contract is RMB 300 per point, with a minimum price fluctuation of 0.2 points. The contract delivery method is cash settlement. Investors can buy or sell the if1209 contract to obtain investment returns, or hedge the risk of the corresponding stock portfolio.

The introduction of the if1209 contract provides investors with more investment tools and risk management methods. Through the trading of stock index futures, investors can manage the risk of stock portfolios more flexibly, while also using stock index futures for hedging, arbitrage and other investment strategies.

In summary, if1209 is a stock index futures contract based on the Shanghai and Shenzhen 300 index, with high market influence and investment value. Its introduction provides investors with more investment tools and risk management methods, helping investors better manage assets and achieve investment goals.