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易盛农产品(郑商所)指数编制方案
一、 指数成分品种
易盛农产品(郑商所)指数的成分品种为郑商所现有农产品所有品种,可分为三大类
11 个品种。截止 2015 年 12 月底,郑商所已上市涉农期货品种共计 11 个,详细见表
1:
表 1 郑商所上市农产品品种列表
指数名称 商品类别 品种 上市时间
易盛农产品(郑
商所)指数
谷物
早籼稻 2009/4/20
强麦 2003/3/28
普麦 2012/1/1
硬麦 2000/10/13
粳稻 2013/11/18
晚籼稻 2014/7/8
油脂油料
菜籽油 2007/6/8
油菜籽 2012/12/28
菜籽粕 2012/12/28
软商品 棉花 2004/6/1
白糖 2006/1/6
二、指数基点和基期
指数基点:1000 点
指数基期:2005 年 12 月 30 日
三、指数计算
2 / 3
有别于传统价格指数反映市场的价格走势总趋势,易盛农产品(郑商所)指数的设计
是以作为指数 ETF 的跟踪标的为目的的。故而易盛农产品(郑商所)指数选用指数持
仓价值来描述该指数的成分品种在期货市场上所持有的所有品种的总价值。每一日的
指数持仓价值等于当日所持有的所有合约的价值的加权平均值。
指数计算公式:
当日指数 =上一交易日指数 ×
当日指数持仓价值
上一交易日指数持仓价值
其中:
当日指数持仓价值 = ∑ (品种当日合约手数 × 合约乘数 × 品种价格)
所有品种
上一交易日所有品种价值加权总和 = ∑ (品种上一交易日合约手数 × 合约乘数 × 品种价格)
所有品种
用数学公式表示:
𝑻𝑶𝑪𝑰𝒕 = 𝑻𝑶𝑪𝑰𝒕−𝟏 ×
𝑽𝑷𝒕
𝑽𝑷𝒕−𝟏
= 𝑻𝑶𝑪𝑰𝒕−𝟏 ×
∑ 𝑽𝑷 𝒄,𝒕𝑪
∑ 𝑽𝑷 𝒄,𝒕−𝟏𝑪
𝑻𝑶𝑪𝑰 𝟎 = 𝟏𝟎𝟎𝟎
𝑽𝑷 𝟎 = 𝟏𝟎𝟎𝟎𝒏
𝑽𝑷𝒕 = ∑ 𝑽𝑷 𝒄,𝒕
𝑪
其中:
1. C 表示指数所纳入的商品品种集合,其中某一种商品品种用小写 c 来表示。
2. 𝑇𝑂𝐶𝐼𝑡为交易日 t 的指数点位,𝑇𝑂𝐶𝐼𝑡−1为上一个交易日的指数点位。𝑇𝑂𝐶𝐼0为基期点位,为 1000
点。
3. VPt为交易日 t 的指数持仓价值,VPt−1为上一个交易日的指数持仓价值。VP0为基期指数持仓价
值,为 1000n。n 为指数的价值单位(即每个指数点对应的价值)。C 表示指数成分品种集合,c 表
示具体品种。𝑉𝑃𝑐,𝑡表示交易日 t 的指数持仓中品种 c 的价值。
四、指数调整
1. 新品种上市满三个月即可按规则纳入指数成分;特备活跃的指数上市不足三个月也
3 / 3
可以纳入。
2.指数成分品种权重的设置以成分品种在期货市场上的流动性为主要衡量标准,同时
参考品种在现货市场上的重要性。每个季度第一个月份进行权重调整,权重调整的过
程分 5 个交易日完成。
3. 指数成分品种的权重设置上下限,任何品种权重不得低于 1%;当指数成分品种多于
4 种的时候,任何品种的权重不得高于 50%。
4. 指数计算以成分品种的主力合约价格为依据。定义每个品种所有合约中流动性最好
的合约为主力合约。当主力合约流动性下降或者交割月份临近的时候,按规则将主力
合约迁移到流动性最好的远月合约。迁仓过程分 5 个交易日完成。
5. 权重调整以及主力合约展期的过程中,为避免非价格变动引起的指数点位变化,采
取等合约价值迁移的方式以确保平缓过渡。
附:自 2015 年 12 月 30 日至今指数运行走势图

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  • 1. 1 / 3 易盛农产品(郑商所)指数编制方案 一、 指数成分品种 易盛农产品(郑商所)指数的成分品种为郑商所现有农产品所有品种,可分为三大类 11 个品种。截止 2015 年 12 月底,郑商所已上市涉农期货品种共计 11 个,详细见表 1: 表 1 郑商所上市农产品品种列表 指数名称 商品类别 品种 上市时间 易盛农产品(郑 商所)指数 谷物 早籼稻 2009/4/20 强麦 2003/3/28 普麦 2012/1/1 硬麦 2000/10/13 粳稻 2013/11/18 晚籼稻 2014/7/8 油脂油料 菜籽油 2007/6/8 油菜籽 2012/12/28 菜籽粕 2012/12/28 软商品 棉花 2004/6/1 白糖 2006/1/6 二、指数基点和基期 指数基点:1000 点 指数基期:2005 年 12 月 30 日 三、指数计算
  • 2. 2 / 3 有别于传统价格指数反映市场的价格走势总趋势,易盛农产品(郑商所)指数的设计 是以作为指数 ETF 的跟踪标的为目的的。故而易盛农产品(郑商所)指数选用指数持 仓价值来描述该指数的成分品种在期货市场上所持有的所有品种的总价值。每一日的 指数持仓价值等于当日所持有的所有合约的价值的加权平均值。 指数计算公式: 当日指数 =上一交易日指数 × 当日指数持仓价值 上一交易日指数持仓价值 其中: 当日指数持仓价值 = ∑ (品种当日合约手数 × 合约乘数 × 品种价格) 所有品种 上一交易日所有品种价值加权总和 = ∑ (品种上一交易日合约手数 × 合约乘数 × 品种价格) 所有品种 用数学公式表示: 𝑻𝑶𝑪𝑰𝒕 = 𝑻𝑶𝑪𝑰𝒕−𝟏 × 𝑽𝑷𝒕 𝑽𝑷𝒕−𝟏 = 𝑻𝑶𝑪𝑰𝒕−𝟏 × ∑ 𝑽𝑷 𝒄,𝒕𝑪 ∑ 𝑽𝑷 𝒄,𝒕−𝟏𝑪 𝑻𝑶𝑪𝑰 𝟎 = 𝟏𝟎𝟎𝟎 𝑽𝑷 𝟎 = 𝟏𝟎𝟎𝟎𝒏 𝑽𝑷𝒕 = ∑ 𝑽𝑷 𝒄,𝒕 𝑪 其中: 1. C 表示指数所纳入的商品品种集合,其中某一种商品品种用小写 c 来表示。 2. 𝑇𝑂𝐶𝐼𝑡为交易日 t 的指数点位,𝑇𝑂𝐶𝐼𝑡−1为上一个交易日的指数点位。𝑇𝑂𝐶𝐼0为基期点位,为 1000 点。 3. VPt为交易日 t 的指数持仓价值,VPt−1为上一个交易日的指数持仓价值。VP0为基期指数持仓价 值,为 1000n。n 为指数的价值单位(即每个指数点对应的价值)。C 表示指数成分品种集合,c 表 示具体品种。𝑉𝑃𝑐,𝑡表示交易日 t 的指数持仓中品种 c 的价值。 四、指数调整 1. 新品种上市满三个月即可按规则纳入指数成分;特备活跃的指数上市不足三个月也
  • 3. 3 / 3 可以纳入。 2.指数成分品种权重的设置以成分品种在期货市场上的流动性为主要衡量标准,同时 参考品种在现货市场上的重要性。每个季度第一个月份进行权重调整,权重调整的过 程分 5 个交易日完成。 3. 指数成分品种的权重设置上下限,任何品种权重不得低于 1%;当指数成分品种多于 4 种的时候,任何品种的权重不得高于 50%。 4. 指数计算以成分品种的主力合约价格为依据。定义每个品种所有合约中流动性最好 的合约为主力合约。当主力合约流动性下降或者交割月份临近的时候,按规则将主力 合约迁移到流动性最好的远月合约。迁仓过程分 5 个交易日完成。 5. 权重调整以及主力合约展期的过程中,为避免非价格变动引起的指数点位变化,采 取等合约价值迁移的方式以确保平缓过渡。 附:自 2015 年 12 月 30 日至今指数运行走势图