f/overrides/event-backup/fdlo-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
22023-09-150.181000
32026-06-180.264000
42018-09-210.132000
52019-09-200.141000
62024-03-150.229000
72024-06-210.202000
82026-03-200.279000
92021-06-180.141000
102023-03-170.210000
112024-12-200.220000
122025-09-190.219000
132019-03-150.154000
142021-03-190.147000
152020-03-200.167000
162020-09-180.142000
172021-09-170.158000
182022-12-160.182000
192023-06-160.170000
202019-06-210.141000
212019-12-200.162000
222025-03-210.244000
232017-03-170.107000
242017-12-150.129000
252017-06-160.127000
262017-09-150.131000
272018-03-160.119000
282018-12-210.140000
292020-12-180.136000
302023-12-150.155000
312016-12-160.133000
322016-12-280.009000
332025-12-190.220000
342024-09-200.199000
352025-06-200.232000
362022-03-180.161000
372022-06-170.169000
382022-09-160.176000
392018-06-150.138000
402020-06-190.143000