f/overrides/event-backup/fmltx-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

875 B

1DateDividends
22023-09-290.067000
32015-03-270.008000
42018-12-280.475000
52019-03-270.007000
62022-06-150.413000
72021-12-302.919000
82022-06-300.040000
92024-03-280.058000
102024-06-170.001000
112015-12-300.484000
122016-06-280.168000
132016-12-290.126000
142020-06-260.397000
152022-09-300.038000
162023-03-310.054000
172023-12-280.086000
182024-06-280.069000
192014-06-260.214000
202019-06-260.220000
212020-09-280.049000
222020-12-300.214000
232024-12-300.317000
242025-06-160.619000
252018-09-260.107000
262025-12-300.575000
272021-06-280.367000
282021-09-280.049000
292016-03-290.004000
302017-03-290.086000
312018-06-270.199000
322021-03-290.005000
332015-06-260.242000
342019-09-260.039000
352019-12-300.201000
362020-03-270.007000
372014-12-300.641000
382022-12-290.033000
392023-06-150.068000
402024-09-300.059000
412017-12-280.244000
422018-03-270.009000
432023-06-300.081000
442026-06-150.578000