f/overrides/event-backup/femrx-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

695 B

1DateDividends
22019-12-160.087000
32021-03-150.141000
42022-12-200.068000
52023-12-200.082000
62024-03-200.094000
72024-06-200.090000
82018-12-170.234000
92026-03-200.130000
102023-03-200.075000
112024-09-200.102000
122024-12-200.112000
132018-03-150.170000
142020-12-150.116000
152021-09-150.151000
162021-12-150.113000
172022-09-200.070000
182023-06-200.079000
192025-09-220.103000
202025-12-220.184000
212019-09-160.084000
222021-06-150.146000
232023-09-200.087000
242018-06-150.166000
252018-09-170.180000
262019-03-150.185000
272020-03-160.215000
282026-06-220.113000
292019-06-170.181000
302020-06-150.127000
312022-06-210.056000
322025-03-200.024000
332020-09-150.076000
342022-03-210.127000
352025-06-200.110000