f/overrides/event-backup/linkx-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
22017-09-290.057000
32021-09-300.071000
42022-07-140.020000
52017-06-300.083000
62018-06-290.105000
72020-12-310.120000
82016-06-300.081000
92022-09-300.095000
102019-09-270.063000
112015-06-300.073000
122015-09-300.063000
132022-03-310.049000
142023-03-310.062000
152025-12-290.623000
162014-12-310.164000
172021-06-300.131000
182012-06-290.030000
192014-09-300.050000
202015-03-310.045000
212016-09-300.042000
222019-12-310.243000
232024-12-240.478000
242012-03-300.023000
252014-03-310.050000
262017-03-310.039000
272018-03-290.042000
282021-12-310.224000
292022-06-300.118000
302013-12-310.173000
312016-12-300.113000
322025-07-170.003000
332012-12-310.116000
342015-12-300.172000
352017-12-290.138000
362019-06-280.119000
372023-12-220.142000
382013-09-300.053000
392016-03-310.052000
402018-09-280.068000
412020-03-310.051000
422020-06-300.094000
432024-06-280.003000
442014-06-300.124000
452020-09-300.048000
462023-09-290.079000
472013-06-280.076000
482012-09-280.045000
492018-12-310.092000
502021-03-310.042000
512022-12-230.090000
522023-06-300.124000
532013-03-280.033000
542019-03-280.055000
552026-07-220.046000