f/overrides/event-backup/hedj-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

1.1 KiB

1DateDividends
22018-03-200.041000
32020-09-220.327500
42023-09-250.075000
52013-03-220.006000
62022-03-250.042500
72012-03-260.085500
82017-09-260.010000
92020-12-210.185500
102018-06-250.729000
112023-06-261.207500
122015-12-212.001500
132016-09-260.080000
142017-03-270.045000
152017-06-260.575000
162011-12-210.129500
172021-06-240.502500
182026-06-250.985000
192021-03-250.040000
202023-12-220.135000
212020-06-230.315000
222024-09-250.040000
232025-06-250.835000
242022-09-260.082500
252016-06-200.530000
262016-12-230.108500
272017-12-260.093000
282021-09-240.067500
292024-12-310.018000
302012-06-250.358000
312013-06-240.364500
322014-09-220.040000
332014-12-191.192000
342022-12-230.102000
352010-06-280.597500
362013-09-230.089500
372014-03-240.047500
382020-03-240.050500
392010-09-200.107000
402013-12-240.059500
412019-09-240.042500
422025-09-250.030000
432011-09-260.041000
442015-03-230.031500
452015-09-210.021000
462019-12-230.066000
472024-12-260.241000
482012-09-240.096500
492015-06-220.484500
502019-06-240.532500
512021-12-270.223500
522022-06-240.762500
532024-06-251.135000
542010-03-290.064500
552010-12-220.058000
562011-06-220.528500
572014-06-230.341000