SIX Concentration Analytics (Memberorg)
SIX Concentration Analytics (Memberorg)
SIX Concentration Analytics (Memberorg)
SIX Concentration Analytics (SCA) measures how liquidity is distributed across the order book for each SIX-listed equities, helping users quantify concentration vs. dispersion at and around the top of book. Metrics are intended for market quality monitoring, venue insights, and strategy research (e.g., assessing depth distribution and resiliency), measured by the Herfindahl-Hirschman Index (HHI). SIX Market Signal delivers this product as a historical analytics dataset with daily updates, ready for dashboards and quantitative workflows.
Two Datasets in One Product
- SIX_HHI_MEMBEROG
- SIX_HHI_MEMBER
Free Historical Trial Data Prospective clients may benefit from a free trial of SIX Concentration Analytics historical data before onboarding the T+1 product. The historical trial dataset is refreshed quarterly on a rolling basis and maintains a minimum three-month delay from the current date. For complimentary access to the historical trial dataset, please contact marketsignal@six-group.com.
Product Guide
Ordering the trial data or T+1 Products
- Signed SIX Analytics Agreement: For the trial data and/or the Analytics T+1 Product the signed Analytics Agreement is required.
- SIX Analytics General Terms and Conditions
- Order Form: Filled out order form
- Affiliate List: Subsidiaries, and any holding company of the User and any Subsidiary of such holding company. For the purpose of this definition, a subsidiary means a company in which the Distributor owns directly or indirectly more than 50% (fifty percent).
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Use Cases
- Firm/organization-level concentration monitoring
- Market-quality and venue surveillance
- Best-execution analysis
- Identifying instruments dominated by a few member organizations
- Comparing customer vs. non-customer and aggressive vs. passive concentration
- Quantitative research on Swiss equity microstructure
Highlights
Pairs naturally with SIX_HHI_MEMBER (individual-member view) and SIX_FLOW_ANALYTICS.
Provider
Methods
https://api.marketsignal.six-group.com/v1/data/CORE/SIX_HHI_MEMBERORG?token=<your token>https://api.marketsignal.six-group.com/v1/data/CORE/SIX_HHI_MEMBERORG/:isin?token=<your token>https://api.marketsignal.six-group.com/v1/data/CORE/SIX_HHI_MEMBERORG/:isin/::currency?token=<your token>- https://api.marketsignal.six-group.com/v1/data/CORE/SIX_HHI_MEMBERORG/CH0038863350
- https://api.marketsignal.six-group.com/v1/data/CORE/SIX_HHI_MEMBERORG/CH0038863350?from=2026-07-01&to=2026-07-31&format=csv
Time Series Query Parameters
You can use any time series query parameters with this dataset.
View the full documentation →
Response Attributes
| Key | Type | Description |
|---|---|---|
isin* key | string | ISO 6166 International Securities Identification Number of the instrument. |
date* index | string | Trading date the metrics are computed for (YYYY-MM-DD). |
currency* subkey | string | Trading currency of the instrument (ISO 4217). |
| group | string | Instrument/trading group the security belongs to. |
| trading_segment_id | integer | Identifier of the trading segment the instrument trades in. |
| hhi | float64 | Herfindahl-Hirschman Index of trading concentration across members for the instrument/day. Higher values indicate volume concentrated among fewer members; lower values indicate more dispersed participation. |
| hhi_buy | float64 | Member-concentration Herfindahl-Hirschman Index computed over buy-side volume. |
| hhi_sell | float64 | Member-concentration Herfindahl-Hirschman Index computed over sell-side volume. |
| hhi_aggressive | float64 | Member-concentration Herfindahl-Hirschman Index computed over aggressive (liquidity-taking) volume. |
| hhi_aggressive_buy | float64 | Member-concentration Herfindahl-Hirschman Index computed over aggressive (liquidity-taking) buy-side volume. |
| hhi_aggressive_sell | float64 | Member-concentration Herfindahl-Hirschman Index computed over aggressive (liquidity-taking) sell-side volume. |
| hhi_passive | float64 | Member-concentration Herfindahl-Hirschman Index computed over passive (liquidity-providing) volume. |
| hhi_passive_buy | float64 | Member-concentration Herfindahl-Hirschman Index computed over passive (liquidity-providing) buy-side volume. |
| hhi_passive_sell | float64 | Member-concentration Herfindahl-Hirschman Index computed over passive (liquidity-providing) sell-side volume. |
| hhi_auction | float64 | Member-concentration Herfindahl-Hirschman Index computed over auction-phase volume. |
| hhi_auction_buy | float64 | Member-concentration Herfindahl-Hirschman Index computed over auction-phase buy-side volume. |
| hhi_auction_sell | float64 | Member-concentration Herfindahl-Hirschman Index computed over auction-phase sell-side volume. |
| hhi_customer | float64 | Member-concentration Herfindahl-Hirschman Index computed over customer (client) volume. |
| hhi_customer_buy | float64 | Member-concentration Herfindahl-Hirschman Index computed over customer (client) buy-side volume. |
| hhi_customer_sell | float64 | Member-concentration Herfindahl-Hirschman Index computed over customer (client) sell-side volume. |
| hhi_noncustomer | float64 | Member-concentration Herfindahl-Hirschman Index computed over non-customer (proprietary) volume. |
| hhi_noncustomer_buy | float64 | Member-concentration Herfindahl-Hirschman Index computed over non-customer (proprietary) buy-side volume. |
| hhi_noncustomer_sell | float64 | Member-concentration Herfindahl-Hirschman Index computed over non-customer (proprietary) sell-side volume. |
| trade_volume | integer | Total executed trade volume for the instrument on the day. |
| aggressive_trade_volume | integer | Executed volume from aggressive (liquidity-taking) trades. |
| passive_trade_volume | integer | Executed volume from passive (liquidity-providing) trades. |
| auction_trade_volume | integer | Executed volume from auction-phase trades. |
| customer_trade_volume | integer | Executed volume from customer (client) trades. |
| noncustomer_trade_volume | integer | Executed volume from non-customer (proprietary) trades. |
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