f/overrides/event-backup/grgux-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

1.0 KiB

1DateDividends
22022-09-290.211000
32024-09-270.207000
42018-12-190.215000
52020-12-160.167000
62021-12-160.241000
72022-12-131.468000
82016-12-200.223000
92019-09-270.208000
102022-03-300.197000
112023-06-290.229000
122025-03-280.140000
132015-12-210.278000
142018-03-290.151000
152018-12-110.301000
162025-12-114.083000
172016-03-300.141000
182017-06-300.187000
192019-12-180.164000
202023-12-131.288000
212026-03-300.176000
222024-03-270.198000
232018-09-270.152000
242021-09-290.206000
252022-06-290.226000
262023-09-280.183000
272026-06-290.156000
282016-06-290.217000
292019-03-280.229000
302019-12-121.568000
312021-03-300.174000
322024-12-170.246000
332015-12-310.278000
342017-09-290.182000
352024-06-270.187000
362025-06-270.193000
372019-06-270.209000
382024-12-123.835000
392022-12-160.253000
402023-03-300.211000
412025-09-290.205000
422016-09-290.164000
432017-03-300.139000
442020-03-300.246000
452021-06-290.182000
462021-12-143.033000
472025-12-160.175000
482017-12-200.270000
492018-06-280.242000
502020-09-290.170000
512015-09-290.133000
522017-09-280.182000
532020-06-290.167000
542023-12-180.252000