| regulatory | /v1/regulatory | regulatory_market_structure | compositeregulatory_dataset | L1source_of_record4 sources | Multi-source regulatory and market-structure data, preserving source-specific datasets. |
| regulatory_alternate | /v1/regulatory/{view} | regulatory_market_structure | compositeregulatory_dataset | L1source_of_record4 sources | Multi-source regulatory and market-structure data, preserving source-specific datasets. |
| reg_short_interest | /v1/regulatory/short-interest | regulatory_market_structure | compositeregulatory_dataset | L1source_of_record1 sources | Short-interest records from source-of-record regulatory feeds. |
| reg_short_interest_symbol | /v1/regulatory/short-interest/{symbol} | regulatory_market_structure | compositeinstrument | L1source_of_record2 sources | Symbol-scoped short-interest observations. |
| reg_short_sale | /v1/regulatory/short-sale | regulatory_market_structure | compositeregulatory_dataset | L1source_of_record3 sources | Short-sale volume, circuit breaker, and Reg SHO observations. |
| reg_reg_sho | /v1/regulatory/reg-sho | regulatory_market_structure | compositeregulatory_dataset | L1source_of_record2 sources | Reg SHO daily lists and source-defined Reg SHO datasets. |
| reg_threshold | /v1/regulatory/threshold | regulatory_market_structure | compositeregulatory_dataset | L1source_of_record2 sources | Threshold securities list observations. |
| reg_halts | /v1/regulatory/halts | regulatory_market_structure | compositeregulatory_dataset | L1source_of_record2 sources | Trading halt and halt-file observations. |
| otc_securities | /v1/otc/securities | regulatory_market_structure | compositeinstrument | L1source_of_record2 sources | OTC security master and issuer lists. |
| fixed_income_metadata | /v1/fixed-income/{dataset}/metadata | regulatory_market_structure | compositeregulatory_dataset | L1source_of_record1 sources | FINRA fixed-income dataset metadata. |
| finra_otc_dataset | /v1/finra/otc/{dataset} | regulatory_market_structure | compositeregulatory_dataset | L1source_of_record1 sources | FINRA OTC datasets by dataset slug. |
| finra_otc_metadata | /v1/finra/otc/{dataset}/metadata | regulatory_market_structure | compositeregulatory_dataset | L1source_of_record1 sources | FINRA OTC dataset metadata. |
| finra_otc_partitions | /v1/finra/otc/{dataset}/partitions | regulatory_market_structure | compositeregulatory_dataset | L1source_of_record1 sources | FINRA OTC dataset partitions. |
| finra_otc_query | /v1/finra/otc/{dataset}/query | regulatory_market_structure | compositeregulatory_dataset | L1source_of_record1 sources | GET-facing query wrapper over the structured FINRA OTC dataset query endpoint. |
| finra_otc_daily_list | /v1/finra/otc/daily-list | regulatory_market_structure | compositeregulatory_dataset | L1source_of_record1 sources | FINRA OTC daily list events and reference updates. |