f/overrides/event-backup/flql-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

775 B

1DateDividends
22022-09-160.212000
32023-06-230.194000
42024-09-200.167000
52024-12-200.236000
62026-06-260.224000
72017-06-200.007000
82021-09-130.218000
92022-03-100.120000
102022-12-160.294000
112019-06-110.093000
122019-09-110.219000
132020-03-110.108000
142021-03-110.131000
152026-03-200.154000
162018-03-200.089000
172018-06-200.106000
182020-06-110.107000
192020-09-140.304000
202021-12-130.320000
212022-06-170.186000
222024-03-150.106000
232024-06-210.153000
242017-09-200.158000
252017-12-200.187000
262018-12-200.209000
272020-12-140.235000
282021-06-100.183000
292023-12-150.224000
302025-06-270.211000
312018-09-200.099000
322023-03-170.142000
332019-12-300.007000
342025-03-210.133000
352025-09-190.163000
362025-12-190.258000
372019-03-200.056000
382019-12-110.248000
392023-09-150.155000