f/fund-dividend.csv at bb8e39605ef99b652f313b9fbf152f26d568e613

gmp/f

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

2.1 KiB

Raw Blame History

1	Date	Dividends
2	2009-03-04	0.090000
3	2014-03-11	0.100000
4	2016-09-13	0.090000
5	2021-03-12	0.104000
6	1989-12-15	0.135000
7	2008-09-04	0.120000
8	1991-07-08	0.025000
9	2012-03-02	0.100000
10	2018-03-14	0.129000
11	2019-03-14	0.120000
12	2020-09-14	0.107000
13	1998-03-04	0.132000
14	2004-12-02	1.420000
15	2023-09-14	0.124000
16	2024-06-14	0.130000
17	2024-12-13	0.216000
18	2021-12-10	0.411000
19	2022-03-11	0.136000
20	2023-06-09	0.122000
21	1990-12-18	0.205000
22	2004-03-04	0.100000
23	2000-12-04	0.340000
24	2004-06-04	0.155000
25	2017-09-14	0.100000
26	1994-06-24	0.062000
27	2019-06-13	0.116000
28	2012-12-04	0.170000
29	2022-12-09	0.128000
30	2004-09-03	0.110000
31	2021-09-10	0.125000
32	2025-09-15	0.127000
33	1991-01-14	0.055000
34	2005-03-03	0.120000
35	2017-06-13	0.100000
36	2020-06-12	0.109000
37	2023-12-13	0.127000
38	1989-06-21	0.160000
39	2001-12-04	0.140000
40	2006-03-02	0.120000
41	2011-03-03	0.090000
42	2018-09-13	0.129000
43	1992-07-06	0.140000
44	2018-06-14	0.129000
45	2017-03-13	0.100000
46	2020-03-12	0.116000
47	2007-03-02	0.130000
48	2015-06-12	0.110000
49	2025-03-14	0.131000
50	2025-06-13	0.128000
51	2007-09-04	0.130000
52	2007-12-04	1.618000
53	2003-12-04	0.620000
54	2011-06-02	0.100000
55	2015-05-13	0.110000
56	2016-06-10	0.090000
57	1991-12-24	0.085000
58	2019-12-12	0.116000
59	2022-06-10	0.139000
60	2023-03-10	0.125000
61	2013-06-12	0.090000
62	1988-12-30	0.200000
63	2006-12-04	1.200000
64	2005-09-01	0.120000
65	2005-12-02	0.850000
66	2006-06-02	0.120000
67	2019-09-13	0.112000
68	1991-08-26	0.172000
69	2008-03-04	0.130000
70	2012-06-04	0.100000
71	2022-09-09	0.133000
72	2026-03-13	0.134000
73	1993-01-08	0.125000
74	2002-12-04	0.090000
75	2005-06-02	0.120000
76	2006-09-01	0.130000
77	2011-12-02	0.110000
78	1997-01-02	0.042000
79	2015-12-11	0.120000
80	1989-10-23	0.180000
81	1996-01-02	0.028000
82	1999-12-02	0.133000
83	1992-04-01	0.150000
84	2020-12-14	0.215000
85	2026-06-12	0.142000
86	2012-09-04	0.090000
87	2013-03-04	0.100000
88	2014-09-11	0.110000
89	2016-12-13	0.120000
90	1998-12-03	0.132000
91	2008-06-04	0.120000
92	2011-09-01	0.110000
93	2014-12-11	0.110000
94	1993-04-08	0.122000
95	2007-06-04	0.130000
96	2025-12-12	0.191000
97	2013-09-12	0.100000
98	2024-03-13	0.129000
99	2008-12-04	0.100000
100	2013-12-11	0.110000
101	2021-06-11	0.116000
102	1992-10-05	0.135000
103	2024-09-16	0.130000
104	2016-03-11	0.100000
105	2018-12-13	0.302000
106	2014-06-12	0.100000
107	2015-09-11	0.100000
108	2017-12-14	0.220000

2.1 KiB Raw Blame History

2.1 KiB

Raw Blame History