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CSI CSI1000 Index

CSI 1000 中证1000

General rules (8) ↗

Latest v1.1 ↗ No changes yet

Also known as: 中证1000 · CSI1000 Index (Bloomberg) · 000852 (CSI code) · .CSI1000I (RIC)

  • Review frequencySemi-annual
  • Constituent count1,000
  • Buffer800 / 1200
  • Next dates
    • 2026-12 (month) rebalance effective
    • 2027-06 (month) rebalance effective
FieldValueSource textReading (model)
M1 Identity, objective, classification · 13 fields
Local short name 中证1000
指数名称：中证1000 指数指数简称：中证1000英文名称：CSI 1000 IndexOpen p.1 ↗
 The local short name is 中证1000.
Index name CSI 1000 Index
英文名称：CSI 1000 Index英文简称：CSI 1000指数代码：000852/399852Open p.1 ↗
 The official English index name is CSI 1000 Index.
Index short name CSI 1000
英文名称：CSI 1000 Index英文简称：CSI 1000指数代码：000852/399852Open p.1 ↗
 The English short name is CSI 1000.
Local index name 中证1000 指数
指数名称：中证1000 指数指数简称：中证1000英文名称：CSI 1000 IndexOpen p.1 ↗
 The local index name is 中证1000 指数.
Index code 000852, 399852
英文简称：CSI 1000指数代码：000852/399852Open p.1 ↗
 The index codes are 000852 and 399852.
Administrator 中证指数有限公司
指数名称：中证1000 指数指数简称：中证1000英文名称：CSI 1000 IndexOpen p.1 ↗
 The index provider is identified by the CSI index naming as China Securities Index Co., Ltd.
Index family 中证1000
该指数系列以2004 年12 月31 日为基日，以1000 点为基点。Open p.1 ↗
 The document is the methodology for the CSI 1000 index series.
Base date 2004-12-31
该指数系列以2004 年12 月31 日为基日，以1000 点为基点。Open p.1 ↗
 The base date is December 31, 2004.
Base value 1,000 points
该指数系列以2004 年12 月31 日为基日，以1000 点为基点。Open p.1 ↗
 The base value is 1000 points.
Objective 中证1000 指数选取中证800 指数样本以外的规模偏小且流动性好的1000 只证券作为指数样本，与沪深300 和中证500 等指数形成互补。
中证1000 指数选取中证800 指数样本以外的规模偏小且流动性好的1000 只证券作为指数样本，与沪深300 和中证500 等指数形成互补。Open p.1 ↗
 The CSI 1000 Index selects 1000 smaller and liquid securities outside the CSI 800 Index constituents, complementing indices such as CSI 300 and CSI 500.
Market classification China A
中证全指指数样本空间中沪深市场证券Open p.1 ↗
 The index covers securities in the Shanghai and Shenzhen markets within the CSI All Share Index sample space.
Size segment Small
中证1000 指数选取中证800 指数样本以外的规模偏小且流动性好的1000 只证券作为指数样本Open p.1 ↗
 The index targets smaller-sized securities outside the CSI 800 constituent universe.
Index family type Market cap
中证1000 指数选取中证800 指数样本以外的规模偏小且流动性好的1000 只证券作为指数样本Open p.1 ↗
 The index is a market-cap-segment index selecting smaller companies by size and liquidity.
M2 Universe · 5 fields
Eligible universe description 中证全指指数样本空间中沪深市场证券
中证全指指数样本空间中沪深市场证券Open p.1 ↗
 The eligible universe is Shanghai and Shenzhen market securities within the CSI All Share Index sample space.
Markets Shanghai, Shenzhen
中证全指指数样本空间中沪深市场证券Open p.1 ↗
 The sample space consists of securities in the Shanghai and Shenzhen markets.
Exchanges Shanghai, Shenzhen
中证全指指数样本空间中沪深市场证券Open p.1 ↗
 The covered markets are Shanghai and Shenzhen.
Security types A share
中证全指指数样本空间中沪深市场证券Open p.1 ↗
 The universe comprises Shanghai and Shenzhen market securities, implying China A-shares.
Parent universe index 中证全指
中证全指指数样本空间中沪深市场证券Open p.1 ↗
 The sample space is drawn from securities in the CSI All Share Index sample space.
M3 Eligibility screens · 1 field
General selection criteria Securities must be outside the CSI 800, smaller in size, and liquid, with 1000 selected.
中证1000 指数选取中证800 指数样本以外的规模偏小且流动性好的1000 只证券作为指数样本Open p.1 ↗
 The index selects 1000 smaller-sized and liquid securities that are not CSI 800 Index samples.
M4 Selection and constituent count · 3 fields
Selection method Rank by metric
（1）剔除样本空间内中证800 指数样本及过去一年日均总市值排名前300名的证券；Open p.1 ↗
 The index selects constituents by ranking eligible securities after removing specified larger securities and illiquid names.
Ranking metrics Name: Average daily turnover; Window: Past one year; Direction: Descending; Step order: 1, Name: Average daily total market capitalization; Window: Past one year; Direction: Descending; Step order: 2
（2）将样本空间内证券按照过去一年的日均成交金额由高到低排名，剔除排名后20%的证券；Open p.1 ↗
 Securities are first ranked by past-year average daily turnover from high to low, and remaining securities are then ranked by past-year average daily total market capitalization from high to low.
Target constituent count 1,000
（3）将样本空间内剩余证券按照过去一年日均总市值由高到低排名，选取排名在1000 名之前的证券作为指数样本。Open p.2 ↗
 The index selects the securities ranked within the top 1,000 after the screening and market-capitalization ranking.
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 · 6 fields
Sample change ratio cap 10% of constituents
每次调整的样本比例一般不超过10%。Open p.2 ↗
 The proportion of constituents changed at each periodic review generally does not exceed 10%.
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 ↗
 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 periodic reviews and ad hoc adjustments in special circumstances.
Review months June, December
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 ↗
 Periodic constituent changes are implemented in June and December each year.
Effective date rule The next trading day after the second Friday of June and December.
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 ↗
 Periodic constituent changes take effect on the next trading day after the second Friday of June and December.
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 · 3 fields
Buffer zone Entry rank: 800; Exit rank: 1,200
日均总市值排名在800 名之前的新样本优先进入，排名在1200 名之前的老样本优先保留。Open p.2 ↗
 New candidates ranked before 800 by average daily total market capitalization are prioritized for inclusion, while existing constituents ranked before 1200 are prioritized for retention.
Liquidity buffer existing Metric: Average daily turnover rank; Threshold: 90%
定期调整设置缓冲区，日均成交金额排名在样本空间前90%的老样本可参与下一步日均总市值排名；Open p.2 ↗
 Existing constituents whose average daily trading-value rank is within the top 90% of the sample universe may proceed to the average daily total market-capitalization ranking.
Maximum turnover per review 10% of constituents
每次调整的样本比例一般不超过10%。Open p.2 ↗
 The proportion of constituents changed in each periodic adjustment is generally no more than 10%.
M8 Corporate actions, IPOs, ad-hoc changes · 4 fields
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 ad hoc when it is delisted, and acquisition, merger and spin-off cases 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 ↗
 When constituent companies undergo acquisitions, mergers or spin-offs, treatment follows the calculation and maintenance detailed 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 events are handled with reference to the calculation and maintenance detailed 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 definition Adjusted market capitalization is the sum of each security's price multiplied by its adjusted share count.
调整市值＝ ∑(证券价格×调整股本数)。Open p.2 ↗
 Adjusted market capitalization equals the sum over securities of price times adjusted number of shares.
Calculation and maintenance guide reference The methods for calculating adjusted share counts and correcting the divisor are set out in the calculation and maintenance rules.
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 ↗
 Adjusted-share calculation and divisor-correction methods refer to the calculation and maintenance detailed 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)。Open p.2 ↗
 The index is calculated using an adjusted market capitalization divided by a 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 · 45Model-written, for reference

  1. 1No ISIN is stated.
  2. 2No third-party vendor tickers for Bloomberg, Refinitiv, or Wind are stated.
  3. 3No calculation agent distinct from the administrator is stated.
  4. 4No launch date is stated; only the base date is provided.
  5. 5No calculation currency is stated.
  6. 6No methodology version or methodology edition date is stated.
  7. 7No benchmark regulatory status is stated.
  8. 8No explicit intended use is stated.
  9. 9No stated limitations of the index are provided.
  10. 10No explicit listing boards are stated.
  11. 11No nationality rule is stated.
  12. 12No explicit universe exclusions are stated.
  13. 13Specific eligibility thresholds for trading history, liquidity, size, free float, foreign room, voting rights, price, financial screens, ESG exclusions, suspension treatment, and abnormal price screening are not stated.
  14. 14Selection text does not state how ranking ties are broken.
  15. 15Selection text does not state any industry or sector neutrality rule.
  16. 16Selection text does not state a reserve list or replacement-candidate size rule.
  17. 17No weighting or capping methodology is provided.
  18. 18No free-float factor, inclusion factor, share-count source, foreign-ownership treatment, weight cap, or divisor-adjustment rule is provided.
  19. 19Data cut-off or reference date rule for periodic reviews is not stated.
  20. 20Announcement timing or disclosure channel for review results is not stated.
  21. 21Weight rebalancing or capped/factor weight reset frequency separate from constituent review is not stated.
  22. 22Fast-entry rule for large new listings is not stated.
  23. 23Ad hoc replacement policy or reserve-list treatment is not stated.
  24. 24Deletion price for removed or suspended constituents is not stated.
  25. 25Share or free-float change implementation threshold is not stated.
  26. 26Price source not stated.
  27. 27Calculation frequency not stated.
  28. 28Calculation returns.precision not stated.
  29. 29Return variants not stated.
  30. 30Withholding tax basis not stated.
  31. 31Dividend treatment not stated.
  32. 32Divisor adjustment not stated beyond a reference to separate calculation and maintenance rules.
  33. 33Market disruption rule not stated.
  34. 34Recalculation policy not stated.
  35. 35Oversight body not stated.
  36. 36Discretion points not stated.
  37. 37Methodology review frequency not stated.
  38. 38External review not stated.
  39. 39Material change definition not stated.
  40. 40Consultation procedure not stated.
  41. 41Notice period not stated.
  42. 42Error correction policy not stated.
  43. 43Change announcement not stated.
  44. 44Constituents published not stated.
  45. 45Cessation policy not stated.

Read by a language model (doubao-seed-2.1-pro) on 2026-10-03 · prompt 1.2 · schema 1 · 58 of 58 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

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  • v1.1 zh2 pp
  • v1.1 en2 pp

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