f/overrides/event-backup/fstlx-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

995 B

1DateDividends
22020-03-240.115000
32025-09-160.098000
42016-12-190.135000
52019-09-240.117000
62019-12-180.127000
72022-12-160.160000
82017-09-250.122000
92018-03-260.113000
102018-09-240.092000
112020-09-240.108000
122021-12-170.119000
132023-06-160.103000
142024-06-170.089000
152025-12-160.075000
162017-03-240.107000
172018-06-250.106000
182020-06-240.093000
192022-03-240.094000
202023-12-120.176000
212024-03-180.088000
222025-03-170.104000
232018-12-062.001000
242019-03-250.097000
252019-12-050.364000
262021-03-240.096000
272021-09-240.114000
282021-12-065.450000
292022-09-260.082000
302024-12-124.343000
312017-12-052.477000
322019-06-240.105000
332025-12-111.919000
342024-09-160.087000
352024-12-160.137000
362016-12-050.999000
372022-06-240.095000
382021-06-240.107000
392022-12-063.480000
402023-03-160.092000
412023-12-180.140000
422025-06-160.077000
432026-03-160.095000
442017-06-260.112000
452018-12-180.166000
462026-06-160.063000
472020-12-180.137000
482023-09-180.105000
492016-09-260.103000
502017-12-180.083000