f/gis-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

3.4 KiB

Raw Blame History

1	Date	Dividends
2	2020-01-09	0.490000
3	1986-04-04	0.029961
4	2006-01-06	0.170000
5	2006-04-06	0.170000
6	2015-01-08	0.410000
7	2008-07-08	0.215000
8	2026-01-09	0.610000
9	2002-10-08	0.137500
10	2003-07-08	0.137500
11	2005-01-06	0.155000
12	2005-04-07	0.077500
13	1989-04-04	0.048557
14	1990-04-04	0.056822
15	1998-01-07	0.132500
16	1999-07-07	0.137500
17	2009-07-08	0.235000
18	2010-04-08	0.245000
19	2021-10-07	0.510000
20	1985-10-04	0.028928
21	1996-10-08	0.125000
22	2010-01-07	0.245000
23	2018-01-09	0.490000
24	1999-04-07	0.137500
25	2001-07-06	0.137500
26	2002-04-08	0.137500
27	2003-04-08	0.137500
28	1987-07-06	0.041325
29	1989-10-03	0.056822
30	1994-01-04	0.097114
31	1995-10-05	0.117500
32	2009-01-08	0.215000
33	2011-04-07	0.280000
34	2014-07-08	0.410000
35	2008-04-08	0.200000
36	2013-10-08	0.380000
37	2019-04-09	0.490000
38	2025-04-10	0.600000
39	2008-01-08	0.195000
40	2012-04-05	0.305000
41	2013-01-08	0.330000
42	1984-10-03	0.028928
43	1985-01-04	0.028928
44	1993-10-04	0.097114
45	1995-01-04	0.097114
46	1987-01-05	0.033060
47	1988-10-03	0.048557
48	2003-10-08	0.137500
49	2023-10-06	0.590000
50	1986-01-06	0.028928
51	1992-07-06	0.086783
52	2023-07-07	0.590000
53	2025-01-10	0.600000
54	1990-01-04	0.056822
55	2013-04-08	0.330000
56	2016-10-05	0.480000
57	2024-07-10	0.600000
58	1984-04-04	0.026345
59	1998-07-08	0.132500
60	2022-04-07	0.510000
61	1985-04-03	0.028928
62	1993-04-02	0.086783
63	1993-07-02	0.097114
64	1997-10-08	0.132500
65	2008-10-08	0.215000
66	2018-07-09	0.490000
67	2020-04-08	0.490000
68	2021-01-07	0.510000
69	1988-01-04	0.041325
70	1999-10-06	0.137500
71	2004-10-06	0.155000
72	2012-07-06	0.330000
73	2004-01-08	0.137500
74	2007-10-05	0.195000
75	2013-07-08	0.380000
76	2018-10-09	0.490000
77	1983-07-01	0.026345
78	1983-10-03	0.026345
79	1991-01-04	0.066120
80	1992-04-06	0.076451
81	2026-07-10	0.610000
82	2017-10-06	0.490000
83	2025-07-10	0.610000
84	1991-04-04	0.066120
85	1997-01-08	0.125000
86	2006-07-06	0.175000
87	2011-07-07	0.305000
88	2005-07-07	0.082500
89	2010-10-06	0.280000
90	2019-10-09	0.490000
91	2023-04-06	0.540000
92	1984-01-04	0.026345
93	1990-10-03	0.066120
94	1994-07-01	0.097114
95	1996-07-08	0.125000
96	2025-10-10	0.610000
97	2003-01-08	0.137500
98	2009-04-07	0.215000
99	2022-01-07	0.510000
100	2017-04-06	0.480000
101	2024-10-10	0.600000
102	1988-04-04	0.041325
103	1988-07-01	0.048557
104	2010-07-08	0.280000
105	2014-01-08	0.380000
106	2002-07-08	0.137500
107	2014-04-08	0.410000
108	1994-04-04	0.097114
109	1994-10-03	0.097114
110	1999-01-06	0.137500
111	2000-07-06	0.137500
112	2017-01-06	0.480000
113	2018-04-09	0.490000
114	2021-04-08	0.510000
115	1989-07-03	0.056822
116	1991-07-03	0.076451
117	1997-07-08	0.132500
118	2011-10-05	0.305000
119	2007-07-06	0.195000
120	2012-01-06	0.305000
121	2022-07-07	0.540000
122	1986-07-03	0.029961
123	1987-04-06	0.033060
124	1998-04-07	0.132500
125	2007-04-05	0.185000
126	2016-01-07	0.440000
127	2024-04-09	0.590000
128	1985-07-03	0.028928
129	2004-07-08	0.155000
130	2009-10-07	0.235000
131	2014-10-08	0.410000
132	1992-01-06	0.076451
133	2002-01-08	0.137500
134	2007-01-08	0.185000
135	2012-10-05	0.330000
136	2015-10-07	0.440000
137	1993-01-04	0.086783
138	1995-07-06	0.117500
139	1996-01-08	0.117500
140	2000-01-06	0.137500
141	2016-04-07	0.460000
142	2019-01-09	0.490000
143	1989-01-04	0.048557
144	1990-07-03	0.066120
145	2000-10-05	0.137500
146	2001-01-08	0.137500
147	2016-07-07	0.480000
148	2020-07-09	0.490000
149	2022-10-06	0.540000
150	1991-10-04	0.076451
151	2005-10-05	0.165000
152	2006-10-05	0.175000
153	2011-01-06	0.280000
154	2004-04-07	0.137500
155	2015-04-08	0.440000
156	2015-07-08	0.440000
157	2021-07-08	0.510000
158	1984-07-03	0.028928
159	1986-10-06	0.033060
160	1998-10-07	0.132500
161	2001-10-05	0.137500
162	1992-10-05	0.086783
163	1996-04-08	0.125000
164	1997-04-08	0.132500
165	2026-04-10	0.610000
166	2020-10-08	0.510000
167	2023-01-09	0.540000
168	2024-01-09	0.590000
169	2000-04-06	0.137500
170	2001-04-06	0.137500
171	2017-07-06	0.490000
172	2019-07-09	0.490000
173	1995-04-04	0.097114

3.4 KiB Raw Blame History

3.4 KiB

Raw Blame History