OpenKuber vs CMIE Prowess
Prowess from CMIE is a subscription database of Indian company data: financial statements, shareholding and ownership, governance indicators, stock prices and capital changes, with an Excel add-in and an API. OpenKuber builds IROHA, which explains individual NSE price moves by attributing them to market, sector, macro and company-specific causes and testing each. Prowess gives historical data; IROHA gives event-level attribution.
CMIE Prowess describes itself as: "Prowess offers regular insights into the economy and delivers millions of company data to you." (source, checked 2 Nov 2026)
Use CMIE Prowess when…
- You need long histories of Indian company financials and ownership
- You run academic or large-sample research
Use OpenKuber when…
- You need to explain specific price moves with tested causes
- You want those causes as features or scenario inputs
Side by side
| Capability | CMIE Prowess | OpenKuber (IROHA) | Source |
|---|---|---|---|
| Company data | Yes. Financial statements, shareholding and ownership, governance indicators, stock prices and capital changes | Not offered. Use your existing data provider | link |
| Excel add-in and API | Yes. Excel Add-In and API documentation listed | API for pilot customers | link |
| Attribution of a stock move to causes | Not listed on their site as of 2 Nov 2026 | Yes. Splits a move into market, sector, macro and company-specific parts | Their site, 2 Nov 2026 |
| Causal inference | Not listed on their site as of 2 Nov 2026 | Yes. Each cause is accepted only if it passes evidence tests (pooled test, placebo dates, intraday windows) | Their site, 2 Nov 2026 |
Competitor details come from CMIE Prowess's own public pages as checked on 2 Nov 2026. Features change; check their site for the current position.
A worked example only IROHA shows
From 21 Aug – 7 Oct 2026 RAYMOND rose +52.8%. IROHA attributes −0.5 points to the market, −1.9 to textile peers and +53.1 to the company, where the dated cause is an aerospace order win and policy news and company news pass every causal test. See the full breakdown.
Using them together
Use Prowess for history and large-sample research. Use IROHA to label what caused individual moves.
Questions
Can IROHA output be joined to Prowess data?
Yes. Pilot customers receive IROHA output by stock and date, which joins to any company database.
Sources
Last reviewed 2 November 2026; next review by 31 January 2027. CMIE Prowess is a trademark of Centre for Monitoring Indian Economy Pvt. Ltd., used here only to identify the product. OpenKuber is not affiliated with Centre for Monitoring Indian Economy Pvt. Ltd.. Spotted an error? Email [email protected] and we will correct it.
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