f/overrides/event-backup/fxf-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

735 B

1DateDividends
22006-11-010.055000
32007-01-030.068000
42007-08-010.113000
52008-01-020.089000
62008-09-020.093000
72008-10-010.092000
82023-12-010.009000
92007-10-010.102000
102008-04-010.129000
112008-08-010.092000
122024-03-010.009000
132006-10-020.041000
142006-12-010.063000
152007-02-010.076000
162008-02-010.102000
172008-06-020.091000
182006-07-030.017000
192006-09-010.036000
202007-11-010.095000
212007-12-030.092000
222008-03-030.126000
232008-05-010.092000
242023-10-020.002000
252024-04-010.004000
262007-04-020.092000
272007-06-010.094000
282007-09-040.105000
292008-11-030.080000
302006-08-010.032000
312007-03-010.076000
322008-07-010.087000
332024-01-020.010000
342007-07-020.100000
352007-05-010.091000
362023-11-010.009000
372024-02-010.010000