f/overrides/event-backup/fmat-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
22022-12-160.206000
32024-09-200.210000
42015-09-180.156000
52020-06-190.149000
62018-09-210.148000
72019-06-210.191000
82021-03-190.163000
92021-06-180.178000
102024-06-210.187000
112025-12-190.210000
122014-09-190.116000
132017-06-160.135000
142026-03-200.198000
152014-03-210.125000
162023-03-170.199000
172020-03-200.205000
182022-03-180.201000
192026-06-180.211000
202017-03-170.133000
212017-09-150.123000
222018-03-160.144000
232019-12-200.168000
242020-12-180.173000
252022-09-160.200000
262024-12-200.205000
272025-09-190.216000
282015-12-290.006000
292017-12-150.144000
302019-03-150.128000
312021-09-170.197000
322021-12-170.186000
332023-12-150.214000
342025-03-210.220000
352025-06-200.224000
362015-12-180.107000
372018-06-150.159000
382014-06-200.085000
392014-12-190.127000
402016-06-170.121000
412018-12-210.168000
422020-09-180.169000
432023-09-150.208000
442013-12-200.100000
452013-12-270.002000
462024-03-150.207000
472016-09-160.134000
482016-12-160.113000
492019-09-200.162000
502023-06-160.211000
512015-03-200.127000
522015-06-190.128000