f/overrides/event-backup/miucx-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
22022-03-310.006000
32022-08-310.011000
42024-11-290.020000
52025-09-300.021000
62022-04-290.007000
72023-05-310.017000
82025-07-310.021000
92022-02-280.005000
102023-12-290.020000
112024-03-280.020000
122026-06-300.021000
132025-05-300.021000
142022-11-300.013000
152024-04-300.019000
162024-07-310.020000
172024-10-310.022000
182025-02-280.019000
192026-04-300.021000
202026-05-290.022000
212026-01-300.022000
222024-05-310.020000
232025-03-310.020000
242025-06-300.021000
252023-03-310.017000
262025-08-290.021000
272023-04-280.016000
282023-09-290.020000
292024-06-280.020000
302025-10-310.021000
312022-10-310.012000
322024-08-300.020000
332025-01-310.021000
342025-04-300.020000
352023-02-280.014000
362024-01-310.020000
372026-03-310.021000
382022-12-300.014000
392023-06-300.017000
402026-02-270.019000
412021-12-070.051000
422023-11-300.019000
432024-02-290.019000
442025-11-280.021000
452022-09-300.010000
462025-12-310.022000
472026-07-310.021000
482023-08-310.018000
492024-12-310.021000
502022-12-060.005000
512023-01-310.014000
522023-07-310.017000
532023-10-310.019000
542024-09-300.020000