YES CRITERIA
- Acquisition – Amazon (or a wholly owned subsidiary) completes a purchase giving it >50 % of Anthropic voting equity. 
- Acqui‑hire – A mainstream business/tech news outlet explicitly describes Amazon’s action as an “acqui‑hire” of Anthropic. 
- Majority‑stake investment – Amazon raises its fully‑diluted voting stake to ≥50 %. 
The date that the ≥50 % threshold is first crossed determines timing. Multiple transactions may add up.
NO CRITERIA / EXCLUSIONS
- Minority investments (<50 %). 
- Partnerships, cloud‑provider agreements, reseller deals. 
- Board seats, observer rights, unexercised options or warrants. 
- Ordinary employee attrition. 
- Any qualifying deal first announced after 31 Dec 2028. 
RESOLUTION
- Requires publicly verifiable evidence (SEC filings, company press release, or reporting by Bloomberg/Reuters/WSJ). 
- Market may resolve early once evidence is public. 
- If no YES condition is met by 31 Dec 2028 23:59 UTC, market resolves NO. 
EDGE CASES
- If regulators block a signed deal before closing → NO. 
- If Amazon’s stake exceeds 50 % and later falls below 50 % (all before 2029) → YES (once crossed, condition is met).