f/overrides/event-backup/epsrx-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

1.0 KiB

1DateDividends
22021-12-070.069000
32023-06-300.182000
42024-09-300.107000
52014-09-290.124000
62017-09-290.099000
72019-06-280.245000
82022-12-120.086000
92024-03-280.247000
102013-09-270.097000
112017-06-300.224000
122019-12-100.430000
132023-12-110.065000
142026-06-300.233000
152014-06-270.269000
162015-03-310.134000
172016-12-080.119000
182016-09-300.110000
192021-03-310.202000
202021-09-300.100000
212023-03-310.235000
222014-03-280.144000
232014-12-100.751000
242016-03-310.142000
252024-06-280.214000
262025-03-310.222000
272016-06-300.212000
282017-03-310.127000
292022-09-300.089000
302019-09-300.116000
312020-06-300.124000
322020-12-080.092000
332023-09-290.104000
342025-06-300.189000
352013-12-090.155000
362015-12-091.132000
372018-06-290.255000
382025-09-300.104000
392025-12-041.544000
402026-03-310.142000
412020-03-310.230000
422021-06-300.202000
432022-03-310.170000
442022-06-300.182000
452018-03-290.173000
462018-09-280.106000
472018-12-111.126000
482019-03-290.196000
492020-09-300.072000
502024-12-051.682000
512015-06-300.254000
522015-09-300.139000
532017-12-130.121000