f/overrides/event-backup/brgkx-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

1.2 KiB

1DateDividends
22020-12-100.083000
32026-03-310.116000
42012-06-290.048000
52019-06-280.159000
62024-06-280.102000
72011-06-300.043000
82019-12-120.254000
92011-09-300.037000
102012-09-280.054000
112014-03-310.057000
122015-09-300.068000
132017-06-300.060000
142021-03-310.107000
152013-03-280.054000
162017-03-310.074000
172018-06-290.082000
182020-03-310.094000
192021-06-300.108000
202023-03-310.133000
212012-03-300.048000
222012-12-310.174000
232015-03-310.064000
242015-12-300.542000
252016-09-300.069000
262016-12-160.434000
272022-09-300.105000
282025-12-160.570000
292014-09-300.065000
302022-07-140.078000
312024-12-120.193000
322013-06-280.075000
332020-06-300.114000
342023-09-290.097000
352013-09-300.057000
362020-09-300.086000
372021-09-300.091000
382016-06-300.102000
392017-12-150.256000
402021-12-090.301000
412022-06-300.094000
422025-03-310.112000
432011-12-300.050000
442014-06-300.115000
452015-06-300.095000
462017-09-290.079000
472018-12-140.154000
482023-12-140.119000
492025-09-300.123000
502018-03-290.078000
512019-03-280.092000
522025-06-300.377000
532026-06-300.166000
542013-12-310.435000
552014-12-310.287000
562018-09-280.092000
572024-03-280.107000
582016-03-310.072000
592019-09-270.088000
602022-03-310.094000
612023-06-300.106000
622024-09-300.116000
632022-12-130.076000