f/overrides/event-backup/fv-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
22018-09-140.024000
32019-09-250.074000
42024-12-130.039000
52018-06-210.022000
62022-12-230.233000
72023-03-240.143000
82026-03-260.051000
92019-03-210.012000
102015-12-230.022000
112022-03-250.085000
122014-09-230.003000
132016-09-210.079000
142017-09-210.053000
152017-12-210.115000
162019-12-130.083000
172015-06-240.009000
182016-12-210.125000
192020-03-260.025000
202021-12-230.033000
212022-09-230.151000
222023-09-220.010000
232023-12-220.047000
242024-06-270.017000
252014-12-230.019000
262026-06-250.076000
272024-09-260.020000
282016-06-220.017000
292021-09-230.020000
302022-06-240.173000
312025-03-270.062000
322025-09-250.101000
332015-09-230.002000
342023-06-270.045000
352025-12-120.136000
362017-06-220.018000
372019-06-140.009000
382024-03-210.007000
392025-06-260.096000
402018-03-220.002000