f/overrides/event-backup/fxs-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

875 B

1DateDividends
22014-04-010.005000
32011-03-010.113000
42011-05-020.150000
52012-08-010.113000
62013-12-020.037000
72010-12-010.054000
82011-01-030.074000
92011-07-010.164000
102012-02-010.159000
112012-10-010.085000
122012-12-030.070000
132013-02-010.043000
142013-04-010.041000
152010-11-010.036000
162014-07-010.007000
172014-05-010.003000
182013-07-010.040000
192013-10-010.037000
202014-01-020.024000
212011-09-010.194000
222012-04-020.117000
232013-03-010.036000
242013-08-010.036000
252013-11-010.039000
262014-03-030.006000
272011-10-030.175000
282011-06-010.175000
292012-03-010.133000
302012-07-020.106000
312013-09-030.037000
322011-02-010.092000
332011-11-010.189000
342012-05-010.111000
352012-06-010.104000
362012-09-040.115000
372013-05-010.040000
382014-02-030.007000
392014-06-020.010000
402011-08-010.191000
412011-12-010.172000
422012-01-030.177000
432013-06-030.040000
442011-04-010.157000