A one-page view of concentration across markets, where the evidence is missing, and which firms are connected. Use the underlying sources to investigate questions, not to infer a legal violation from a score.
12 markets·45 sources·4 HHI gaps
Observatory indexChoose the evidence universe
4 public domains
Research desk
Inspect policy events and timing
Move from dated public records to transparent, non-causal before-and-after concentration windows.
12in view0filters17sources
Refine market sliceSector, geography, concentration, vintage, status, and confidenceAll markets12 in view
Enforcement observatory
Move from the event chronology to exact named-organization relationships.
The dedicated atlas keeps source-assigned roles, official records, measured market context, and non-causal HHI windows in one inspectable route.
Join sourced market observations to official complaints, decisions, inquiries, remedies, settlements, and monitoring reports without claiming that one caused the other.
The FTC announced a proposed consent agreement with Caremark and Zinc Health Services addressing formulary design, point-of-sale rebates, fee structures, plan-sponsor transparency, community-pharmacy reimbursement, and access to pharmacy hub services.
Interpretation guardrail
Records announced remedy terms in the pending administrative matter. The filing does not establish realized savings, changes in PBM market structure, or a basis for calculating the withheld market HHI.
Compare the nearest public HHI release strictly before an official event with the nearest release strictly after it. Same-year releases remain visible but timing-ambiguous.