f/overrides/event-backup/dali-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

495 B

1DateDividends
22021-12-230.029000
32023-12-220.202000
42024-09-260.024000
52025-09-250.036000
62026-03-260.021000
72019-09-250.041000
82020-06-250.132000
92020-09-240.115000
102021-09-230.001000
112023-03-240.063000
122019-03-210.008000
132020-03-260.020000
142023-06-270.463000
152023-09-220.008000
162025-06-260.025000
172019-06-140.003000
182022-12-230.123000
192024-03-210.005000
202024-12-130.019000
212025-03-270.014000
222025-12-120.035000
232026-06-250.247000
242019-12-130.043000
252020-12-240.006000