f/overrides/event-backup/jppex-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

655 B

1DateDividends
22014-12-122.033000
32017-12-200.173000
42020-12-116.224000
52022-12-200.367000
62014-06-300.041000
72019-10-083.620000
82024-12-122.591000
92025-12-113.616000
102014-12-190.095000
112015-06-260.034000
122017-12-132.853000
132018-12-125.144000
142019-12-190.524000
152020-12-180.322000
162022-12-131.176000
172016-09-280.092000
182016-12-141.372000
192014-09-300.036000
202016-12-200.064000
212015-03-270.010000
222015-09-280.025000
232018-12-190.359000
242023-12-200.426000
252015-12-112.111000
262016-06-280.021000
272021-12-134.602000
282025-12-180.483000
292015-12-210.079000
302017-03-290.038000
312019-12-120.312000
322021-12-200.222000
332024-12-190.435000