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NSC, risk-factor evolution

Item 1A (Risk Factors) year-over-year changes. Pre-computed at ingest time: paragraph adds/removes plus term-frequency cosine similarity between consecutive years.

📞 Earnings calls for NSC on Subtext ↗

Section length over time

019233847577076932016201720182019202020212022202320242025
  • Carried over
  • Newly added

Item 1A word count by fiscal year, split into text carried over from the prior year vs. newly added (from year-over-year diffs).

Year-over-year transitions

YearsSimilarityAddedRemovedSection length
2015 → 2016
0.97
+2125-22992125 wordsDiff →
2016 → 2018
1.00
+2235-21252235 wordsDiff →
2018 → 2019
1.00
+2228-22352228 wordsDiff →
2019 → 2020
0.99
+2474-22282474 wordsDiff →
2020 → 2021
0.99
+2809-24742809 wordsDiff →
2021 → 2022
0.99
+2390-22182981 wordsDiff →
2022 → 2023
0.99
+2298-12054074 wordsDiff →
2023 → 2024
0.99
+4365-29215518 wordsDiff →
2024 → 2025
0.98
+4026-25506994 wordsDiff →