f/overrides/event-backup/dgtsx-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

1.6 KiB

1DateDividends
22022-09-290.071000
32004-03-090.029000
42011-06-080.052000
52017-03-300.039000
62021-12-150.412000
72019-12-170.237000
82017-06-290.060000
92020-06-290.022000
102008-06-100.033000
112008-09-090.107000
122012-12-130.101000
132013-06-100.047000
142012-09-100.032000
152013-03-080.009000
162017-12-150.143000
172004-12-200.040000
182009-12-090.141000
192010-03-090.021000
202011-03-080.047000
212005-03-080.033000
222022-03-300.016000
232023-03-300.009000
242023-09-280.143000
252018-12-180.271000
262019-03-280.015000
272019-09-270.035000
282021-06-290.041000
292008-03-100.009000
302012-06-080.067000
312014-09-090.030000
322014-12-160.146000
332024-06-270.117000
342013-09-100.028000
352018-06-280.061000
362020-03-300.020000
372023-06-290.042000
382026-06-290.147000
392015-03-090.123000
402022-12-140.219000
412025-09-290.128000
422025-12-150.511000
432024-03-270.018000
442009-06-090.065000
452014-06-090.055000
462018-03-280.002000
472019-06-270.068000
482016-12-150.120000
492020-09-290.020000
502021-03-300.009000
512022-06-290.058000
522008-12-100.182000
532009-03-100.002000
542010-06-080.055000
552010-12-090.091000
562024-09-270.155000
572024-12-130.709000
582026-03-300.053000
592013-12-120.103000
602005-09-080.050000
612011-09-080.051000
622009-09-090.100000
632016-06-290.051000
642020-12-160.244000
652025-03-280.036000
662011-12-130.109000
672014-03-100.026000
682025-06-270.140000
692004-09-080.049000
702010-09-080.065000
712012-03-080.015000
722016-09-290.027000
732017-09-280.030000
742018-09-270.050000
752021-09-290.052000
762023-12-130.455000
772004-06-080.051000
782005-06-080.050000
792005-12-190.300000
802016-03-300.040000