f/overrides/event-backup/gmom-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

635 B

1DateDividends
22022-12-230.246000
32025-09-230.065000
42026-06-230.154000
52019-03-290.131000
62020-03-270.020000
72021-06-250.162000
82018-12-270.246000
92019-06-280.121000
102019-12-270.248000
112024-09-230.356000
122024-12-230.070000
132026-03-250.040000
142019-09-270.167000
152021-09-240.247000
162022-06-240.142000
172022-09-230.013000
182023-03-270.183000
192020-09-250.046000
202022-03-280.311000
212021-03-260.015000
222023-09-220.021000
232023-12-220.443000
242020-12-240.192000
252024-06-240.098000
262025-03-250.459000
272025-06-240.200000
282025-12-230.285000
292020-06-260.062000
302021-12-230.595000
312023-06-230.350000
322024-03-220.095000