M&A Lawyers Index 2.0: Latham and Skadden Lead AI Answers
Evidence pack, 5W Public Relations Research

Measured: October 28, 2026 · 24 questions × 3 runs · 288 AI answers
This pack holds the measurement data behind the report. Every number in the report can be
recounted from these files. Counts in the report come from summary.csv and per_engine.csv.

Files:
- summary.csv: One row per tracked name: answers naming it, appearance rate and 95% interval, first-mention position, own-domain citation, citation share, Google AI Overview counts and five-engine totals.
- per_engine.csv: The same counts split by engine (ChatGPT, Claude, Gemini, Perplexity).
- significance.csv: Pairwise comparisons between the leading names (z-test, p-value, whether the 95% intervals overlap).
- sources.csv: Cited domains: number of citations, share of all citations, and how many answers cited each domain.
- entity_rollups.csv: Spellings and name variants counted together with each tracked name.
- unmatched_names.csv: Names that appeared in answers but were not on the tracked list, unfiltered, with answer counts.
- trials.csv: One row per answer: engine, question, run, names found, citations, measurement time.
- raw_responses.jsonl: The full text of every answer and Google AI Overview, with its citations, one JSON record per line.

SHA-256 checksums:
8813488c11259cc1f2eec3268dcdfb9299b38c17f7efb682c5cf51d1cd536ebc  summary.csv
a397c7b60615841a10897ac86c5c789ca570e215305723161c1e924b2ec46e74  per_engine.csv
f360b8ab7a73b93ee42ec775debf9680c475afbd61398c239ffa55d07b95a56e  significance.csv
f0bb7ca414c4832bb6278c504e3d6b64a2364fa1d37e06937a496176279ad564  sources.csv
5aa3a7d7c57be9e90b7c340e52f5bb7d7ec4a3a45283a406aeade06ed0fa756b  entity_rollups.csv
acb800147d35b58b462656396e657561bf869aba0dea9a5164dc4c9142ac040d  unmatched_names.csv
143f40b71c5aa6f89906aed816054504eb463479541b90931150ab46466d4b76  trials.csv
8039917e6dab463d7ccc2ab06fa9b2417be6afdc61041c0e03c38c863ec69c69  raw_responses.jsonl

Questions or corrections: info@5wpr.com
