f/overrides/event-backup/eemx-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

455 B

1DateDividends
22019-06-030.140000
32019-12-200.703000
42020-12-180.380000
52021-12-170.459500
62024-06-030.202000
72025-06-020.131000
82026-06-010.119000
92018-12-210.492000
102017-06-160.108000
112017-09-150.290500
122020-06-010.167000
132021-06-010.170500
142022-12-160.505500
152017-03-170.120000
162017-12-150.336500
172022-06-010.177000
182025-11-250.840000
192016-12-160.039500
202023-06-010.206000
212023-12-150.473000
222024-12-180.527000
232018-06-010.193500