f/overrides/event-backup/jpyrx-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

995 B

1DateDividends
22020-12-310.173000
32014-12-310.137000
42017-03-310.067000
52014-03-310.060000
62015-12-310.168000
72019-12-160.098000
82019-12-310.195000
92020-12-150.022000
102022-12-300.558000
112012-12-310.133000
122013-09-300.047000
132023-12-290.693000
142019-03-290.079000
152019-09-300.104000
162020-03-310.085000
172021-03-310.091000
182021-09-300.102000
192024-12-310.822000
202016-03-310.065000
212016-09-300.080000
222016-06-300.132000
232017-12-290.208000
242018-03-290.076000
252018-09-280.098000
262020-06-300.083000
272013-12-310.141000
282015-03-310.060000
292014-12-170.065000
302018-12-310.187000
312012-09-280.114000
322013-03-280.059000
332019-06-280.192000
342020-09-300.111000
352021-06-300.160000
362021-12-150.934000
372025-12-311.009000
382015-06-300.125000
392015-09-300.072000
402015-12-180.009000
412017-06-300.137000
422017-09-290.094000
432014-06-300.143000
442014-09-300.072000
452016-12-300.180000
462018-06-290.180000
472018-12-140.681000
482021-12-310.351000
492013-06-280.052000
502013-12-180.018000