f/overrides/event-backup/hytr-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

1.4 KiB

1DateDividends
22022-08-180.014000
32022-11-170.033000
42023-03-160.112000
52023-05-180.095000
62020-03-130.084000
72020-08-140.072000
82021-05-140.071000
92023-08-170.099000
102023-09-140.101000
112025-09-190.098000
122021-02-120.072000
132021-03-150.075000
142021-08-130.100000
152026-06-120.108000
162021-06-150.067000
172021-09-150.067000
182023-12-140.205000
192020-09-150.083000
202021-10-150.071000
212022-09-150.018000
222024-04-180.095000
232026-08-140.106000
242021-12-150.152000
252023-04-130.097000
262024-03-140.105000
272024-10-170.111000
282025-02-140.096000
292026-03-130.104000
302021-04-150.070000
312024-11-140.112000
322025-10-170.127000
332025-08-150.106000
342025-11-140.088000
352026-07-170.104000
362024-02-150.095000
372024-07-180.106000
382021-07-150.074000
392023-02-160.104000
402023-06-150.088000
412025-12-120.230000
422020-06-150.010000
432021-11-150.065000
442025-03-140.102000
452020-11-130.100000
462025-05-160.102000
472023-10-190.105000
482024-12-120.137000
492025-06-130.104000
502020-04-150.014000
512020-12-150.170000
522022-07-120.019000
532024-08-150.057000
542026-02-130.092000
552020-07-150.025000
562022-10-180.018000
572022-12-150.143000
582024-12-300.036000
592026-04-170.068000
602020-02-140.096000
612020-05-150.011000
622024-05-160.115000
632023-11-160.053000
642024-06-130.106000
652024-09-190.131000
662025-04-170.102000
672025-07-180.101000
682020-10-150.071000
692022-05-170.015000
702023-07-130.103000
712026-05-150.105000