f/overrides/event-backup/hdgvx-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

1.2 KiB

1DateDividends
22019-12-100.747000
32017-12-152.636000
42014-12-122.295000
52015-03-300.099000
62019-09-270.109000
72023-06-280.100000
82016-06-290.096000
92018-03-280.115000
102020-09-280.099000
112018-09-270.113000
122020-12-290.141000
132025-09-260.113000
142016-03-300.100000
152020-12-100.565000
162023-03-290.119000
172025-12-113.928000
182016-09-290.101000
192021-03-290.111000
202021-12-101.617000
212024-12-270.250000
222025-03-270.140000
232016-12-160.786000
242018-12-172.353000
252021-09-280.095000
262018-06-280.113000
272019-12-270.129000
282021-12-290.138000
292024-06-260.125000
302024-12-113.053000
312026-03-270.119000
322015-12-112.027000
332019-06-270.108000
342022-06-280.090000
352023-12-110.110000
362023-12-270.211000
372021-06-280.089000
382022-03-290.108000
392022-09-280.103000
402015-06-290.119000
412017-03-300.107000
422017-06-290.113000
432018-12-270.129000
442019-03-280.121000
452024-03-260.150000
462024-09-260.119000
472025-06-260.130000
482020-06-260.100000
492022-12-280.182000
502025-12-290.154000
512015-09-290.109000
522015-12-290.112000
532016-12-280.144000
542017-09-280.106000
552020-03-270.127000
562014-12-300.120000
572017-12-270.130000
582022-12-121.374000
592023-09-270.102000
602026-06-260.109000