f/overrides/event-backup/frtsx-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

955 B

1DateDividends
22016-12-290.084000
32017-06-280.039000
42018-12-280.151000
52019-12-300.090000
62020-03-270.079000
72022-03-310.021000
82022-06-300.065000
92016-06-280.113000
102025-12-300.477000
112023-06-300.078000
122019-06-260.075000
132021-09-280.059000
142021-12-300.989000
152024-06-280.090000
162017-09-270.059000
172020-12-300.111000
182024-12-300.082000
192015-09-280.034000
202016-03-290.031000
212017-12-280.059000
222019-09-260.068000
232020-06-260.052000
242020-09-280.052000
252022-12-290.044000
262023-03-310.129000
272015-12-300.127000
282023-12-280.041000
292021-03-290.019000
302022-06-150.235000
312023-09-290.076000
322014-12-300.200000
332018-03-270.075000
342021-06-280.209000
352014-06-260.098000
362016-09-280.050000
372018-06-270.062000
382019-03-270.098000
392024-09-300.090000
402025-06-160.309000
412026-06-150.484000
422014-09-260.038000
432015-06-260.142000
442017-03-290.025000
452018-09-260.069000
462022-09-300.062000
472024-03-280.128000
482015-03-270.023000