Stratalize — attested finance, legal, healthcare, and compliance intelligence. Signed, independently verifiable receipt on every call (trust.stratalize.com/verify). Credit spread benchmark for fixed income desks — returns IG OAS, HY OAS, BBB spread, TED spread, 2s10s, and distress signal. Optional param: rating_tier (all, ig, hy, bbb). Example: IG OAS 95bps, HY OAS 340bps. Source: FRED ICE BofA daily