f/overrides/event-backup/fdgkx-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

1015 B

1DateDividends
22019-12-200.479000
32022-04-010.056000
42025-04-040.033000
52011-09-090.106000
62013-12-130.981000
72015-09-112.476000
82015-12-110.386000
92018-09-145.098000
102022-07-010.142000
112022-09-092.706000
122022-10-070.154000
132009-09-110.122000
142009-12-110.086000
152017-12-083.588000
162019-09-131.053000
172020-12-180.232000
182023-07-070.129000
192024-09-132.515000
202016-09-160.295000
212024-04-050.071000
222026-07-100.171000
232018-12-070.737000
242021-09-102.120000
252022-12-220.303000
262008-12-120.193000
272010-09-080.159000
282010-12-100.115000
292014-12-121.007000
302016-12-090.251000
312023-09-080.504000
322024-07-050.124000
332024-12-260.920000
342008-09-121.219000
352011-12-090.078000
362023-10-060.169000
372023-12-210.309000
382021-12-170.770000
392025-07-110.108000
402025-12-261.107000
412012-09-070.241000
422012-12-140.608000
432013-09-062.663000
442017-09-152.090000
452020-09-110.382000
462023-04-050.065000
472025-10-030.255000
482026-04-010.111000
492014-09-125.044000
502024-10-040.138000
512025-08-072.500000