f/igd-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

5.0 KiB

Raw Blame History

1	Date	Dividends
2	2021-08-02	0.040000
3	2006-12-01	0.156000
4	2012-11-01	0.084000
5	2013-12-27	0.076000
6	2025-10-01	0.050000
7	2011-02-01	0.100000
8	2019-07-01	0.061000
9	2024-07-01	0.050000
10	2021-07-01	0.040000
11	2008-05-01	0.156000
12	2008-11-03	0.156000
13	2014-09-02	0.076000
14	2018-12-03	0.061000
15	2022-10-03	0.040000
16	2025-12-01	0.050000
17	2016-10-03	0.076000
18	2017-08-01	0.061000
19	2018-10-01	0.061000
20	2007-02-01	0.156000
21	2007-06-01	0.156000
22	2017-04-03	0.061000
23	2024-11-01	0.050000
24	2025-09-02	0.050000
25	2010-02-01	0.125000
26	2012-07-02	0.093000
27	2022-11-01	0.040000
28	2020-02-03	0.040000
29	2009-03-02	0.156000
30	2012-03-01	0.093000
31	2016-12-01	0.076000
32	2010-04-01	0.125000
33	2024-04-01	0.040000
34	2025-03-03	0.050000
35	2007-07-02	0.156000
36	2008-08-01	0.156000
37	2009-11-02	0.156000
38	2018-12-28	0.061000
39	2020-09-01	0.040000
40	2025-07-01	0.050000
41	2005-06-01	0.156000
42	2016-09-01	0.076000
43	2018-03-01	0.061000
44	2021-11-01	0.040000
45	2023-10-02	0.040000
46	2013-05-01	0.084000
47	2016-11-01	0.076000
48	2017-11-01	0.061000
49	2012-06-01	0.093000
50	2014-10-01	0.076000
51	2014-12-01	0.076000
52	2015-05-01	0.076000
53	2005-10-03	0.156000
54	2008-03-03	0.156000
55	2010-05-03	0.125000
56	2021-05-03	0.040000
57	2025-11-03	0.050000
58	2006-11-01	0.156000
59	2015-12-01	0.076000
60	2016-12-28	0.061000
61	2006-10-02	0.156000
62	2010-03-01	0.125000
63	2018-02-01	0.061000
64	2009-09-01	0.156000
65	2015-03-02	0.076000
66	2020-12-01	0.040000
67	2026-06-01	0.050000
68	2024-06-03	0.050000
69	2024-10-01	0.050000
70	2009-12-01	0.125000
71	2011-12-01	0.100000
72	2012-09-04	0.093000
73	2021-03-01	0.040000
74	2012-10-01	0.084000
75	2013-07-01	0.084000
76	2013-09-03	0.084000
77	2017-12-28	0.061000
78	2020-05-01	0.040000
79	2023-12-01	0.040000
80	2010-12-01	0.100000
81	2013-02-01	0.084000
82	2013-06-03	0.084000
83	2012-08-01	0.093000
84	2019-02-01	0.061000
85	2022-07-01	0.040000
86	2024-12-30	0.050000
87	2026-02-02	0.050000
88	2005-08-01	0.156000
89	2005-09-01	0.156000
90	2006-05-01	0.156000
91	2009-05-01	0.156000
92	2023-08-01	0.040000
93	2022-05-02	0.040000
94	2011-03-01	0.100000
95	2011-04-01	0.100000
96	2017-02-01	0.061000
97	2011-09-01	0.100000
98	2016-04-01	0.076000
99	2022-12-01	0.040000
100	2007-12-03	0.156000
101	2019-12-02	0.040000
102	2020-10-01	0.040000
103	2023-03-01	0.040000
104	2024-03-01	0.040000
105	2005-12-28	0.156000
106	2009-12-29	0.125000
107	2014-11-03	0.076000
108	2015-02-02	0.076000
109	2023-07-03	0.040000
110	2015-04-01	0.076000
111	2026-04-01	0.050000
112	2011-12-28	0.093000
113	2014-08-01	0.076000
114	2017-06-01	0.061000
115	2022-03-01	0.040000
116	2022-08-01	0.040000
117	2006-02-01	0.156000
118	2008-06-02	0.156000
119	2010-09-01	0.100000
120	2016-02-01	0.076000
121	2023-05-01	0.040000
122	2008-12-01	0.156000
123	2011-10-03	0.100000
124	2014-02-03	0.076000
125	2022-04-01	0.040000
126	2023-02-01	0.040000
127	2006-04-03	0.156000
128	2018-08-01	0.061000
129	2021-09-01	0.040000
130	2011-06-01	0.100000
131	2014-12-29	0.076000
132	2006-06-01	0.156000
133	2006-09-01	0.156000
134	2010-12-29	0.100000
135	2019-03-01	0.061000
136	2019-06-03	0.061000
137	2006-07-03	0.156000
138	2007-05-01	0.156000
139	2008-07-01	0.156000
140	2016-03-01	0.076000
141	2019-12-30	0.040000
142	2013-04-01	0.084000
143	2013-10-01	0.076000
144	2014-03-03	0.076000
145	2007-08-01	0.156000
146	2008-09-02	0.156000
147	2012-12-03	0.084000
148	2026-07-01	0.050000
149	2016-06-01	0.076000
150	2021-12-01	0.040000
151	2022-12-29	0.040000
152	2018-09-04	0.061000
153	2024-09-03	0.050000
154	2011-11-01	0.100000
155	2014-07-01	0.076000
156	2016-05-02	0.076000
157	2019-08-01	0.061000
158	2025-02-03	0.050000
159	2005-11-01	0.156000
160	2008-04-01	0.156000
161	2009-06-01	0.156000
162	2014-05-01	0.076000
163	2019-10-01	0.040000
164	2020-11-02	0.040000
165	2007-03-01	0.156000
166	2009-06-30	0.156000
167	2011-05-02	0.100000
168	2006-12-27	0.156000
169	2017-09-01	0.061000
170	2024-12-02	0.050000
171	2011-08-01	0.100000
172	2017-03-01	0.061000
173	2020-03-02	0.040000
174	2006-08-01	0.156000
175	2010-10-01	0.100000
176	2021-06-01	0.040000
177	2009-08-03	0.156000
178	2016-08-01	0.076000
179	2017-12-01	0.061000
180	2023-09-01	0.040000
181	2005-12-01	0.156000
182	2014-04-01	0.076000
183	2015-10-01	0.076000
184	2008-10-01	0.156000
185	2010-08-02	0.100000
186	2015-12-29	0.076000
187	2021-04-01	0.040000
188	2025-06-02	0.050000
189	2025-08-01	0.050000
190	2014-06-02	0.076000
191	2018-06-01	0.061000
192	2020-08-03	0.040000
193	2013-11-01	0.076000
194	2023-04-03	0.040000
195	2023-12-28	0.040000
196	2005-07-01	0.156000
197	2015-11-02	0.076000
198	2020-12-30	0.040000
199	2019-04-01	0.061000
200	2024-08-01	0.050000
201	2015-09-01	0.076000
202	2026-03-02	0.050000
203	2026-08-03	0.050000
204	2010-11-01	0.100000
205	2012-05-01	0.093000
206	2023-11-01	0.040000
207	2021-12-30	0.040000
208	2026-05-01	0.050000
209	2012-04-02	0.093000
210	2015-08-03	0.076000
211	2019-11-01	0.040000
212	2018-07-02	0.061000
213	2025-12-30	0.050000
214	2009-10-01	0.156000
215	2011-07-01	0.100000
216	2015-07-01	0.076000
217	2021-10-01	0.040000
218	2007-12-27	0.353000
219	2010-07-01	0.100000
220	2015-06-01	0.076000
221	2016-07-01	0.076000
222	2019-09-03	0.061000
223	2024-02-01	0.040000
224	2006-03-01	0.156000
225	2010-06-01	0.125000
226	2012-12-27	0.084000
227	2022-06-01	0.040000
228	2007-10-01	0.156000
229	2013-08-01	0.084000
230	2020-06-01	0.040000
231	2020-04-01	0.040000
232	2020-07-01	0.040000
233	2022-02-01	0.040000
234	2022-09-01	0.040000
235	2024-05-01	0.050000
236	2008-02-01	0.156000
237	2008-12-29	0.156000
238	2018-05-01	0.061000
239	2023-06-01	0.040000
240	2009-02-02	0.156000
241	2017-05-01	0.061000
242	2018-11-01	0.061000
243	2007-04-02	0.156000
244	2025-05-01	0.050000
245	2021-02-01	0.040000
246	2025-04-01	0.050000
247	2017-07-03	0.061000
248	2017-10-03	0.061000
249	2018-04-02	0.061000
250	2019-05-01	0.061000
251	2007-09-04	0.156000
252	2012-02-01	0.093000
253	2013-12-02	0.076000
254	2007-11-01	0.156000
255	2009-04-01	0.156000
256	2013-03-01	0.084000

5.0 KiB Raw Blame History

5.0 KiB

Raw Blame History