f/overrides/event-backup/mtum-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
22020-06-150.346000
32025-03-180.527000
42025-06-160.471000
52014-12-240.237000
62019-12-160.505000
72017-03-240.235000
82020-03-250.445000
92017-06-270.238000
102017-12-210.308000
112018-06-260.340000
122023-03-230.804000
132014-09-240.174000
142015-09-250.177000
152013-12-230.209000
162023-06-070.540000
172021-03-250.092000
182021-06-100.126000
192021-12-130.445000
202015-03-250.213000
212018-09-260.265000
222016-06-210.212000
232018-12-170.396000
242021-09-240.334000
252023-09-260.409000
262024-12-170.748000
272013-06-270.197000
282016-09-260.292000
292026-03-170.221000
302019-03-200.472000
312022-09-261.028000
322026-06-150.358000
332014-06-250.197000
342017-09-260.266000
352022-12-130.842000
362018-03-220.274000
372022-03-240.377000
382014-03-250.101000
392015-06-240.227000
402020-09-230.239000
412022-06-090.373000
422013-09-240.204000
432024-09-250.440000
442016-03-230.191000
452019-09-240.425000
462023-12-200.359000
472019-06-170.453000
482025-12-160.671000
492024-03-210.162000
502024-06-110.198000
512025-09-160.604000
522015-12-240.202000
532016-12-220.390000
542020-12-140.310000