f/overrides/event-backup/lphax-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
22012-06-290.072000
32014-12-310.825000
42019-06-280.072000
52021-06-300.100000
62023-03-310.093000
72023-12-220.302000
82024-06-280.195000
92014-06-300.225000
102016-03-310.036000
112016-09-300.034000
122020-06-300.185000
132020-09-300.059000
142015-06-300.160000
152017-12-291.175000
162021-12-312.014000
172010-12-310.686000
182011-03-310.011000
192011-09-300.018000
202011-06-300.075000
212012-03-300.019000
222015-09-300.036000
232020-03-310.025000
242026-07-220.141000
252025-07-170.144000
262013-03-280.027000
272013-09-300.044000
282014-09-300.028000
292017-06-300.251000
302018-09-280.047000
312019-03-280.019000
322021-03-310.091000
332013-12-310.537000
342017-03-310.023000
352023-09-290.064000
362024-12-241.515000
372018-12-310.995000
382019-09-270.045000
392022-03-310.142000
402023-06-300.028000
412015-03-310.030000
422015-12-300.367000
432025-12-290.958000
442011-12-300.046000
452016-06-300.073000
462016-12-300.104000
472017-09-290.047000
482022-07-140.147000
492022-06-300.058000
502013-06-280.056000
512014-03-310.044000
522018-03-290.054000
532020-12-310.060000
542012-12-310.067000
552019-12-310.616000
562012-09-280.026000
572018-06-290.323000