f/overrides/event-backup/jmbs-dividend.csv
Greg Pomerantz bb8e39605e Event-history protection: backup dir, empty-download fallback, docs
Yahoo's 2026 event-feed change (capitalGain events dropped for some
funds; no events at all for terminated tickers) can wipe good event
history on re-download. Defense in depth:

- overrides/event-backup/: last-known-good copy of every dividend/
  capitalGain file (8,192 files, 58 MB); refresh with
  scripts/backup_events.py after each dump update
- data.py event_file(): frozen > data-root (while populated) > backup;
  used by panel reads, verify_official, and the double-listing scanner
- README: capital-gain files are mutual-fund-only in this dump; Yahoo
  has no LT/ST split (tax.py taxes capg at lt_rate; the per-fund split
  would come from fund-company annual tax statements or commercial feeds)
- tests: exact Timestamp .loc keys (pandas 3.x string matching returns a
  Series on large DatetimeIndex)
2026-08-31 21:59:25 -04:00

95 lines
1.8 KiB
Plaintext

Date,Dividends
2024-09-03,0.196000
2020-03-02,0.101000
2020-09-01,0.077000
2020-12-30,0.313000
2022-05-02,0.073000
2024-04-01,0.194000
2020-07-01,0.104000
2022-02-01,0.030000
2022-06-01,0.088000
2025-12-01,0.186000
2024-06-03,0.190000
2020-04-01,0.120000
2020-12-01,0.176000
2021-12-23,0.035000
2022-08-01,0.102000
2023-04-03,0.155000
2025-02-03,0.188000
2022-03-01,0.035000
2023-09-01,0.184000
2023-11-01,0.182000
2024-03-01,0.190000
2024-08-01,0.197000
2019-04-01,0.153000
2019-10-01,0.105000
2020-10-01,0.144000
2021-06-01,0.052000
2025-10-01,0.200000
2024-12-02,0.310000
2019-03-01,0.093000
2021-08-02,0.054000
2023-06-01,0.165000
2023-10-02,0.169000
2024-11-01,0.192000
2019-02-01,0.093000
2025-06-02,0.191000
2025-09-02,0.190000
2019-05-01,0.138000
2025-07-01,0.199000
2026-03-31,0.200000
2020-02-03,0.077000
2020-05-01,0.113000
2021-09-01,0.053000
2022-12-01,0.148000
2026-01-30,0.210000
2023-02-01,0.113000
2023-07-03,0.175000
2024-05-01,0.192000
2018-11-01,0.140000
2018-12-03,0.123000
2019-06-03,0.132000
2019-07-01,0.125000
2019-12-02,0.337000
2026-07-31,0.192000
2019-11-01,0.219000
2021-04-01,0.056000
2022-11-01,0.140000
2023-03-01,0.155000
2024-07-01,0.191000
2026-06-30,0.195000
2019-08-01,0.092000
2021-07-01,0.053000
2021-10-01,0.053000
2022-04-01,0.063000
2024-02-01,0.183000
2022-09-01,0.131000
2023-05-01,0.171000
2025-11-03,0.189000
2020-06-01,0.095000
2021-02-01,0.060000
2021-03-01,0.051000
2021-05-03,0.052000
2021-12-01,0.045000
2023-12-01,0.190000
2025-03-03,0.189000
2026-04-30,0.190000
2026-05-29,0.192000
2019-09-03,0.121000
2022-07-01,0.093000
2022-10-03,0.136000
2022-12-23,0.199000
2025-05-01,0.190000
2023-08-01,0.154000
2024-10-01,0.198000
2024-12-23,0.209000
2018-12-27,0.184000
2019-12-30,0.284000
2020-08-03,0.103000
2020-11-02,0.138000
2021-11-01,0.050000
2025-04-01,0.191000
2025-08-01,0.183000
2025-12-22,0.203000
2026-02-27,0.191000