Also known as: 上证380 · SH000009 Index (Bloomberg) · 000009 (CSI code) · .SSE380I (RIC)
At a glance
- Review frequencySemi-annual
- Constituent count380
| Field | Value | Source text | Reading (model) |
|---|---|---|---|
| M1 Identity, objective, classification · 13 fields | |||
| Local short name | 上证380 | 指数简称：上证380Open p.1 ↗ |
The local-language short name is 上证380. |
| Target constituent count | 380 securities | 流动性较好的380 只证券作为样本Open p.1 ↗ |
The index targets 380 sample securities. |
| Index name | SSE 380 Index | 英文名称：SSE 380 IndexOpen p.1 ↗ |
The official English index name is SSE 380 Index. |
| Index short name | SSE 380 | 英文简称：SSE 380Open p.1 ↗ |
The official English short name is SSE 380. |
| Local index name | 上证380 指数 | 指数名称：上证380 指数Open p.1 ↗ |
The local-language index name is 上证380 指数. |
| Index code | 000009 | 指数代码：000009Open p.1 ↗ |
The index code is 000009. |
| Index family | SSE indices | 上证380 指数从沪市证券中选取市值规模中等、流动性较好的380 只证券作为样本Open p.1 ↗ |
The index belongs to the Shanghai Stock Exchange index family as indicated by the SSE naming and Shanghai-market universe. |
| Base date | 2003-12-31 | 该指数以2003 年12 月31 日为基日Open p.1 ↗ |
The index base date is December 31, 2003. |
| Base value | 1,000 points | 以1000 点为基点Open p.1 ↗ |
The index base value is 1000 points. |
| Objective | 上证380 指数从沪市证券中选取市值规模中等、流动性较好的380 只证券作为样本，反映上海证券市场中等市值上市公司证券整体表现。 | 上证380 指数从沪市证券中选取市值规模中等、流动性较好的380 只证券作为样本，反映上海证券市场中等市值上市公司证券整体表现。Open p.1 ↗ |
The index selects 380 mid-cap, liquid securities from the Shanghai market to reflect the overall performance of mid-cap listed-company securities on the Shanghai securities market. |
| Market classification | China A | 反映上海证券市场中等市值上市公司证券整体表现Open p.1 ↗ |
The index covers the Shanghai domestic securities market. |
| Size segment | Mid | 选取市值规模中等、流动性较好的380 只证券作为样本Open p.1 ↗ |
The index targets mid-cap securities. |
| Index family type | Market cap | 选取市值规模中等、流动性较好的380 只证券作为样本Open p.1 ↗ |
The index is a market-cap-segment index targeting mid-cap securities. |
| M2 Universe · 3 fields | |||
| Eligible universe rule | Same as the sample universe of the SSE 180 Index. | 同上证180 指数的样本空间。Open p.1 ↗ |
Securities are considered from the same sample space used by the SSE 180 Index. |
| Markets | Shanghai | 上证380 指数从沪市证券中选取市值规模中等、流动性较好的380 只证券作为样本Open p.1 ↗ |
The index draws securities from the Shanghai securities market. |
| Parent universe index | SSE 180 Index | 同上证180 指数的样本空间。Open p.1 ↗ |
The sample universe is the same as the sample universe of the SSE 180 Index. |
| M3 Eligibility screens · 2 fields | |||
| Investability screens | Past-year average daily trading amount rank in the top 90% of the sample universe. | 过去一年日均成交金额排名位于样本空间前90%。Open p.1 ↗ |
The stated investability screen requires a top-90% past-year average daily trading amount rank within the sample universe. |
| Liquidity screen | Metric: Liquidity ratio; Window: past year; Threshold: rank in the top 90% of the sample universe | 过去一年日均成交金额排名位于样本空间前90%。Open p.1 ↗ |
A security's average daily trading value over the past year must rank in the top 90% of the sample universe. |
| M4 Selection and constituent count · 6 fields | |||
| ESG exclusion | exclude securities of companies with CSI ESG rating C or below | 对于样本空间内符合可投资性筛选条件的证券，剔除中证ESG 评价结果在C 及以下的上市公司证券；Open p.1 ↗ |
Securities issued by companies whose CSI ESG evaluation result is C or below are excluded. |
| Parent index exclusion | exclude current SSE 180 Index constituents | 从上述剩余证券中，选取同时满足以下条件的证券作为待选样本： ➢ 非上证180 指数样本；Open p.2 ↗ |
Candidates must not be current constituents of the SSE 180 Index. |
| Minimum rank | Metric: average daily total market capitalization over the past year; Rank threshold: 160; Position: after rank 160 in the sample universe | 过去一年日均总市值排名位于样本空间160 名以后。Open p.2 ↗ |
Candidates must rank below the top 160 in the sample universe by average daily total market capitalization over the past year. |
| Selection method | Rank by metric | 在待选样本中，按照过去一年日均总市值由高到低排名，选取排名前380 的证券作为指数样本。Open p.2 ↗ |
Eligible candidate securities are ranked by market capitalization and the highest-ranked 380 are selected. |
| Ranking metrics | Name: Average daily total market capitalization; Window: Past year; Direction: Descending; Step order: 1 | 在待选样本中，按照过去一年日均总市值由高到低排名，选取排名前380 的证券作为指数样本。Open p.2 ↗ |
Candidate securities are ranked from highest to lowest by average daily total market capitalization over the past year. |
| Target constituent count | 380 | 选取排名前380 的证券作为指数样本。Open p.2 ↗ |
The index selects exactly 380 securities as constituents. |
| M5 Weighting and capping · 3 fields | |||
| Free float factor | Method: Banded; Bands: To: 15; Method: Round the free-float ratio up to the nearest whole percentage value, From: 15; To: 20; Factor: 0.2, From: 20; To: 30; Factor: 0.3, From: 30; To: 40; Factor: 0.4, From: 40; To: 50; Factor: 0.5, From: 50; To: 60; Factor: 0.6, From: 60; To: 70; Factor: 0.7, From: 70; To: 80; Factor: 0.8, From: 80; Factor: 1; Examples: Security: A; Free float ratio (%): 9; Weighting ratio (%): 9; Adjusted shares: 9,000, Security: B; Free float ratio (%): 43.8; Weighting ratio (%): 50; Adjusted shares: 4,000, Security: C; Free float ratio (%): 82; Weighting ratio (%): 100; Adjusted shares: 5,000 | 除非特别说明，中证指数在计算自由流通股本时，采用分级靠档的方法，根据自由流通量所占证券总股本的比例（即自由流通比例）赋予证券总股本一定的加权比例From CSI Free Float Rules for Equity Indices ↗ |
Unless otherwise specified, a banded weighting factor is applied; free-float ratios up to 15% are rounded up to the nearest whole percentage, while higher bands use fixed factors from 20% to 100%. |
| Shares outstanding | Total issued shares of the security; free-float-adjusted share capital is total share capital multiplied by the banded weighting factor. | 自由流通量等于证券总股本剔除限售股份以及以下基本不流通的股份From CSI Free Float Rules for Equity Indices ↗ |
Free float is measured against the security's total share capital, and adjusted share capital is calculated using a weighting factor applied to total share capital. |
| Divisor adjustment rule | The new divisor equals the prior divisor multiplied by the post-adjustment adjusted market capitalization divided by the pre-adjustment adjusted market capitalization, calculated after the close before the change becomes effective. | 为保证指数的连续性，当指数样本、股本结构发生变化或样本的市值出现非交易因素的变动时，指数在变动生效日前一日收盘后采用除数修正法修正原除数。From CSI Calculation Rules for Equity Indices ↗ |
The divisor is corrected after the close before the effective date so that the new divisor equals the old divisor times the ratio of adjusted post-change market value to pre-change market value. |
| M6 Review and rebalance schedule · 8 fields | |||
| Review frequency | Semi-annual | 指数样本每半年调整一次，样本调整实施时间分别为每年6 月和12 月的第二个星期五的下一交易日。Open p.2 ↗ |
The index constituents are reviewed and adjusted once every six months. |
| Review types | Semi annual review, Ad hoc | 指数样本每半年调整一次，样本调整实施时间分别为每年6 月和12 月的第二个星期五的下一交易日。Open p.2 ↗ |
The index is subject to semi-annual scheduled reviews and temporary adjustments in special circumstances. |
| Review months | June, December | 指数样本每半年调整一次，样本调整实施时间分别为每年6 月和12 月的第二个星期五的下一交易日。Open p.2 ↗ |
Scheduled constituent adjustments are implemented in June and December each year. |
| Announcement rule | — | — (not found verbatim in the PDF) |
|
| Effective date rule | The next trading day after the second Friday of June and December. | 指数样本每半年调整一次，样本调整实施时间分别为每年6 月和12 月的第二个星期五的下一交易日。Open p.2 ↗ |
Scheduled constituent changes take effect on the next trading day after the second Friday in June and December. |
| Rebalance frequency | Semi-annual | 权重因子随样本定期调整而调整，调整时间与指数样本定期调整实施时间相同。Open p.2 ↗ |
Weighting factors are adjusted together with the semi-annual constituent review. |
| Weight reset frequency | Semi-annual | 权重因子随样本定期调整而调整，调整时间与指数样本定期调整实施时间相同。在下一个定期调整日前，权重因子一般固定不变。Open p.2 ↗ |
Weighting factors are reset at each semi-annual review and generally remain fixed until the next scheduled review. |
| Data cutoff rule | For commonly used periodic review cycles, the general data cutoff is normally the last calendar day of the second calendar month before the periodic adjustment effective date. | 通常情况下适用常用定期调整周期的指数的通用数据截止日为定期调整生效日前第二个自然月的最后一个自然日。From CSI Constituent Adjustment Rules for Equity Indices ↗ |
For commonly used review cycles, base data generally use the last calendar day of the second natural month before the adjustment effective date as the cutoff. |
| M7 Buffers and turnover control · 1 field | |||
| Maximum turnover per review | 10% of constituents | 每次调整的样本数量比例一般不超过10%。Open p.2 ↗ |
The number of constituents changed at each scheduled review is generally no more than 10%. |
| M8 Corporate actions, IPOs, ad-hoc changes · 5 fields | |||
| Temporary adjustment condition | Temporary adjustments are made in special circumstances. | 特殊情况下将对指数进行临时调整。Open p.2 ↗ |
The index may be adjusted temporarily under special circumstances. |
| Ad-hoc deletion | Delisting, Acquisition | 当样本退市时，将其从指数样本中剔除。样本公司发生收购、合并、分拆等情形的处理，参照计算与维护细则处理。Open p.2 ↗ |
A constituent is removed between reviews if it is delisted; acquisitions, mergers, and spin-offs are handled under the calculation and maintenance rules. |
| Merger spinoff rules | Acquisitions, mergers, and spin-offs are handled by reference to the index calculation and maintenance rules. | 样本公司发生收购、合并、分拆等情形的处理，参照计算与维护细则处理。Open p.2 ↗ |
Treatment of constituent-company acquisitions, mergers, and spin-offs follows the calculation and maintenance rules. |
| Corporate actions guide ref | 计算与维护细则 | 样本公司发生收购、合并、分拆等情形的处理，参照计算与维护细则处理。Open p.2 ↗ |
Corporate-action treatment refers to the separate calculation and maintenance rules. |
| Deletion price | Default price: latest closing price; Major negative event suspended price: 0.00001; Currency for a share example: CNY | 原则上，以最新收盘价剔除指数样本。当决定剔除指数样本时，剔除证券处于停牌状态且停牌原因为触及交易类强制退市情形等重大负面事件的，一般以系统最低价格（目前为0.00001）剔除。From CSI Constituent Adjustment Rules for Equity Indices ↗ |
Constituents are generally removed at the latest closing price; if a removed security is suspended because of a trading-related mandatory delisting trigger or other major negative event, it is removed at the system minimum price, currently 0.00001. |
| M9 Calculation and return variants · 10 fields | |||
| Adjusted market capitalization formula | adjusted market capitalization = sum(security price × adjusted share count × weighting factor) | 其中，调整市值＝∑(证券价格×调整股本数×权重因子)。Open p.2 ↗ |
Adjusted market capitalization is the sum of each constituent's price multiplied by its adjusted share count and weighting factor. |
| Adjusted share and divisor methods reference | Yes | 调整股本数的计算方法、除数修正方法参见计算与维护细则。Open p.2 ↗ |
The methods for calculating adjusted share counts and correcting the divisor are set out in the calculation and maintenance rules. |
| Formula type | Divisor | 指数计算公式为：报告期指数= 报告期样本的调整市值 × 1000除数其中，调整市值＝∑(证券价格×调整股本数×权重因子)。Open p.2 ↗ |
The index is calculated using adjusted market capitalization divided by an index divisor and multiplied by 1,000. |
| Price source | Real-time prices come from exchange market-data systems such as SSE and SZSE or from data vendors designated by CSI; the latest trade is used when traded and the opening reference price is used when there is no trade. | 指数的实时计算，样本实时成交价格来自上海证券交易所、深圳证券交易所等交易所行情系统，或来自由中证指数不时指定的数据供应商提供的交易行情。From CSI Calculation Rules for Equity Indices ↗ |
Real-time calculation uses exchange or designated-vendor market prices, taking the latest traded price or, if no trade occurs, the opening reference price. |
| Calculation frequency | Real-time index updates follow the interface definition used by CSI, the exchange, or another third-party market-data system; closing indices are published every index trading day. | 实时指数计算和发布：指数更新频率以中证指数通、交易所或其他第三方行情发布系统接口定义为准。收盘指数计算和发布：指数发布频率为指数交易日每日发布。From CSI Calculation Rules for Equity Indices ↗ |
Real-time indices are updated according to the relevant publication interface, and closing indices are calculated and published on each index trading day. |
| Return variants | PR, GTR, NTR | 价格指数以样本的市场价格，计算指数的表现。为满足投资者的需要，中证指数同时计算部分指数的全收益指数和净收益指数。From CSI Calculation Rules for Equity Indices ↗ |
The rulebook identifies price, gross total return, and net total return indices, with gross and net versions calculated for some indices. |
| Withholding tax basis | A 10% cash-dividend tax rate is generally used for Shanghai, Shenzhen, Beijing, and Hong Kong securities. | 对沪深京港证券，现金分红的税率一般设置为10%。From CSI Calculation Rules for Equity Indices ↗ |
For Shanghai, Shenzhen, Beijing, and Hong Kong securities, the cash-dividend tax rate is generally set at 10%. |
| Dividend treatment | Gross total return indices reinvest pre-tax cash dividends and net total return indices reinvest after-tax cash dividends on the ex-dividend date; the price index does not adjust the divisor for cash dividends. | 全收益指数和净收益指数是价格指数的辅指数，与价格指数的区别在于全收益指数、净收益指数的计算中考虑了样本税前、税后现金红利的再投资收益，不会在样本除息日按照样本分红金额自然回落From CSI Calculation Rules for Equity Indices ↗ |
Gross and net total return indices assume reinvestment of pre-tax and after-tax cash dividends on the ex-dividend date, while the price index falls naturally on cash dividends. |
| Divisor adjustment | Cash dividend for gross and net total return indices, Bonus issue, Rights issue, Stock split, Reverse stock split, Other share changes at or above 5 percent, Accumulated small share changes in semi annual adjustment, Periodic or ad hoc constituent adjustment | 当样本现金分红时，价格指数除数不予修正，任其自然回落。全收益指数、净收益指数在样本除息日前一交易日收盘后修正指数除数。当样本送股、配股、拆股或缩股时，价格指数、全收益指数、净收益指数在样本除权日前一交易日收盘后修正指数除数。From CSI Calculation Rules for Equity Indices ↗ |
Divisor adjustments are triggered by total-return cash dividends, bonus issues, rights issues, splits, reverse splits, qualifying other share changes, scheduled small share-change updates, and constituent adjustments. |
| Recalculation policy | Where recalculation or republication is involved, CSI will promptly notify index clients; in complex cases CSI reserves discretion to recalculate the index or republish related data products. | 公司保留在复杂情况下自行决定重新计算指数或重新发布相关数据产品的权利。涉及指数重新计算或发布的情形，公司将及时向指数客户发布通知。From CSI The Primary Policy of Index Management ↗ |
If an index is recalculated or related data products are republished, CSI will promptly notify index clients, with the decision reserved to CSI in complex situations. |
| M10 Governance, change policy, disclosure · 10 fields | |||
| Oversight body | Index Business Supervisory Committee, Index Expert Committee | 指数业务监督委员会负责定期对指数编制方案审阅工作进行监督。From CSI The Primary Policy of Index Management ↗ |
The Index Business Supervisory Committee supervises methodology review, rule changes, index terminations, and complaint reports; the Index Expert Committee provides recommendations and discusses Category I index terminations. |
| Discretion points | decide whether and how to correct an index error within six months, decide whether to recalculate an index or republish related data products in complex cases, terminate an index after prudent evaluation, consider providing a replacement index when regulatory requirements and feasibility permit, issue emergency notices depending on the impact of a calculation abnormality, use targeted rather than public consultation where appropriate for material changes | 对于六个月以内的指数错误，需综合评估指数错误影响、指数产品情况、距离下次指数调整时间、指数可投资性与可复制性等因素，慎重决定处理方案。From CSI The Primary Policy of Index Management ↗ |
CSI retains discretion over error handling and recalculation, index termination after evaluation, replacement-index considerations, emergency notification based on impact, and consultation format in appropriate cases. |
| Methodology review frequency | periodic internal review | 公司负责根据内部定期审阅、审视市场环境、听取指数专家委员会建议、接受市场反馈、外部投诉等途径对指数规则进行必要的修订。From CSI The Primary Policy of Index Management ↗ |
Index rules are revised based on periodic internal reviews, market developments, expert committee advice, market feedback, and complaints; the review interval is not specified. |
| External review | Material changes: Market opinions must be sought in advance; Category I indices: Public consultation is the principle; targeted consultation may be used with scope commensurate with the index's actual impact; Non Category I indices: Targeted consultation is the principle | 指数规则修订涉及的重大变更应事先征求市场意见。其中，一类指数1的重大变更原则上采用公开征求意见的形式，若采用定向方式的，征求范围应与指数的实际影响相适应；非一类指数的重大变更原则上采用定向征求意见的形式。From CSI The Primary Policy of Index Management ↗ |
Material rule changes require prior market consultation: Category I indices normally use public consultation, while non-Category I indices normally use targeted consultation. |
| Material change definition | Material changes are referenced as major changes to index rules, but the document does not define the criteria for materiality. | 指数规则修订涉及的重大变更应事先征求市场意见。From CSI The Primary Policy of Index Management ↗ |
The rulebook requires market consultation for material index-rule changes but does not state a definition or criteria for materiality. |
| Consultation procedure | Material changes are consulted with the market before implementation; Category I indices normally use public consultation, non-Category I indices normally use targeted consultation, and targeted scope must match the index's actual impact. | 其中，一类指数1的重大变更原则上采用公开征求意见的形式，若采用定向方式的，征求范围应与指数的实际影响相适应；非一类指数的重大变更原则上采用定向征求意见的形式。From CSI The Primary Policy of Index Management ↗ |
CSI conducts prior market consultation for material changes, normally publicly for Category I indices and on a targeted basis for other indices, with targeted scope aligned to impact. |
| Notice period | 1 business day | 第十七条 指数规则的修订根据指数分类不同须在正式实施前至少一个交易日于公司官网进行公告，公告内容包括指数规则修订的背景、内容及实施时间表。From CSI Measures for the Implementation of Change of Index Methodologies ↗ |
Unless otherwise specified, rule revisions must be announced on the company website at least one trading day before formal implementation. |
| Error correction policy | Error definition: A published index level deviates from the correct level; Causes: data errors, maintenance errors, software or hardware technical failures, other causes; Older than six months: generally not handled; Within six months factors: impact of the error, index-linked products, time until the next index adjustment, index investability and replicability; Complex cases: CSI reserves the right to decide whether to recalculate the index or republish related data products | 指数错误指已向市场发布的指数点位与正确点位发生偏离。引起指数错误的原因包括但不限于：数据错误、维护错误、软硬件技术故障等。公司经过审慎评估，可能对指数错误进行修正，并遵循以下原则：如指数错误发现时距离发生已超过六个月，一般不予处理。From CSI The Primary Policy of Index Management ↗ |
Errors are deviations between published and correct levels; errors older than six months are generally not addressed, while newer errors are assessed by impact, linked products, timing, investability, and replicability, and complex cases may be recalculated or republished at CSI's discretion. |
| Change announcement | market disclosure before formal implementation of rule revisions, CSI Index Express, Exchanges, other third-party market-data publication systems, CSI website, CSI data service platform, notices to index clients for recalculation or republication | 指数规则修订经内部评审后，将在正式实施前向市场披露。From CSI The Primary Policy of Index Management ↗ |
CSI discloses rule revisions to the market before implementation, publishes levels through market-data systems and its website or data platform, and notifies clients for recalculations or republication. |
| Cessation policy | After prudent evaluation, CSI may terminate an index, meaning cessation of calculation, maintenance, and external publication; factors outside CSI's control may, in extreme cases, lead to termination. | 公司经过审慎评估后，可能会进行指数终止的操作，即终止指数的计算、维护和对外发布。From CSI The Primary Policy of Index Management ↗ |
An index may be terminated after prudent evaluation, stopping its calculation, maintenance, and external publication; extreme market, data, liquidity, environmental, or geopolitical factors may also result in termination. |
Open points · 33Model-written, for reference
- 1ISIN was not stated.
- 2Third-party vendor tickers for Bloomberg, Refinitiv, Wind, or other data vendors were not stated.
- 3Administrator or calculation agent was not explicitly identified.
- 4Launch date was not stated; only the base date and base value were provided.
- 5Calculation currency was not stated.
- 6Methodology version and methodology date were not printed.
- 7Benchmark regulation status was not stated.
- 8Stated intended uses were not provided.
- 9Specific exchanges, listing boards, security types, nationality rule, and universe exclusions were not detailed because the document only refers to the SSE 180 Index sample universe.
- 10Minimum trading-history requirement was not stated.
- 11Minimum market-capitalization threshold or rank threshold was not quantified beyond the index's mid-cap objective.
- 12Minimum free float, foreign room, voting rights, price, financial, ESG, suspension, and abnormal-price screens were not stated.
- 13No tie-breaking rule was stated.
- 14No industry or sector neutrality rule was stated.
- 15No reserve list or replacement candidate rule was stated.
- 16No weighting scheme, free-float treatment, share-count source, caps, or divisor adjustment rules were stated.
- 17No data cut-off or reference date rule for semi-annual reviews was stated.
- 18No announcement timing or disclosure channel for review results was stated.
- 19No rank buffer, size-segment buffer, or liquidity buffer for existing constituents was stated.
- 20No fast-entry rule for large new listings was stated.
- 21No replacement policy or reserve list for ad hoc deletions was stated.
- 22No deletion price for suspended or removed securities was stated.
- 23No threshold for interim share or free-float changes was stated.
- 24The cited calculation and maintenance rules were not provided, so detailed merger, acquisition, and spin-off treatment cannot be extracted.
- 25M9 does not specify the price source or reference-price treatment.
- 26M9 does not specify real-time or end-of-day calculation frequency.
- 27M9 does not specify the number of decimal places in the published index level.
- 28M9 does not specify price, gross total return, or net total return variants.
- 29M9 does not specify withholding-tax treatment or dividend reinvestment rules.
- 30M9 does not enumerate the corporate-action or share-change events that trigger divisor adjustment; it only refers to the calculation and maintenance rules.
- 31M9 does not specify market-closure, suspension, or market-disruption calculation rules.
- 32M9 does not specify a recalculation or error-correction policy for published index levels.
- 33The provided sections contain no governance, oversight, consultation, notice, disclosure, constituent-publication, review-frequency, or index-cessation rules.
Read by a language model (doubao-seed-2.1-pro) on 2026-10-03 · prompt 1.2 · schema 1 · 60 of 60 quotes found word for word in the PDF · includes general rules: Calculation Rules for Equity Indices v1.1, Free Float Rules for Equity Indices v1.1, Constituent Adjustment Rules for Equity Indices v1.2, The Primary Policy of Index Management v3.0, Measures for the Implementation of Change of Index Methodologies v3.0
This profile was written by a language model from the provider's text and may be wrong; the provider's document prevails.
Pick a file to view it here.
First edition on record; nothing to compare yet.
No change records for this index yet.