f/overrides/event-backup/ftxn-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

795 B

1DateDividends
22017-09-210.102000
32020-12-240.028000
42023-06-270.416000
52023-12-220.217000
62019-12-130.067000
72022-03-250.124000
82023-03-240.153000
92023-09-220.180000
102024-06-270.202000
112025-03-270.175000
122017-06-220.069000
132018-09-140.071000
142019-06-140.107000
152020-03-260.018000
162025-12-120.218000
172021-06-240.058000
182022-12-230.190000
192024-09-260.203000
202017-03-230.111000
212020-06-250.089000
222021-12-230.010000
232026-06-250.117000
242017-12-210.094000
252019-09-250.138000
262021-03-250.014000
272025-06-260.221000
282025-09-250.178000
292026-03-260.137000
302016-12-210.044000
312018-06-210.040000
322024-12-130.177000
332024-03-210.140000
342018-03-220.100000
352018-12-180.143000
362019-03-210.137000
372020-09-240.070000
382021-09-230.120000
392022-06-240.179000
402022-09-230.140000