f/litax-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

5.6 KiB

Raw Blame History

1	Date	Dividends
2	2015-09-30	0.028000
3	2019-03-29	0.027000
4	2025-11-28	0.025000
5	2004-12-31	0.031000
6	2005-02-28	0.033000
7	2006-06-30	0.032000
8	2010-08-31	0.030000
9	2019-10-31	0.025000
10	2024-06-28	0.025000
11	2025-01-31	0.026000
12	2007-05-31	0.032000
13	2010-06-30	0.030000
14	2014-08-29	0.030000
15	2015-11-30	0.028000
16	2024-07-31	0.026000
17	2008-07-31	0.032000
18	2016-03-31	0.026000
19	2020-01-31	0.025000
20	2021-06-30	0.023000
21	2010-07-30	0.030000
22	2019-06-28	0.025000
23	2010-05-28	0.030000
24	2011-12-30	0.031000
25	2013-12-31	0.030000
26	2014-10-31	0.030000
27	2003-11-28	0.031000
28	2008-06-30	0.032000
29	2016-08-31	0.027000
30	2018-08-31	0.027000
31	2022-09-30	0.024000
32	2026-05-29	0.026000
33	2006-09-29	0.032000
34	2008-02-29	0.032000
35	2012-06-29	0.028000
36	2013-02-28	0.025000
37	2019-01-31	0.027000
38	2025-09-30	0.025000
39	2026-04-30	0.025000
40	2004-02-27	0.033000
41	2004-06-30	0.032000
42	2004-07-30	0.032000
43	2008-05-30	0.031000
44	2017-03-31	0.027000
45	2023-07-31	0.026000
46	2006-11-30	0.032000
47	2014-07-31	0.030000
48	2016-09-30	0.026000
49	2017-02-28	0.024000
50	2009-12-31	0.030000
51	2015-07-31	0.029000
52	2007-03-30	0.031000
53	2016-01-29	0.027000
54	2018-03-29	0.026000
55	2010-09-30	0.030000
56	2012-12-31	0.029000
57	2018-05-31	0.026000
58	2020-12-31	0.024000
59	2003-10-31	0.032000
60	2006-10-31	0.032000
61	2012-07-31	0.029000
62	2020-07-31	0.024000
63	2010-10-29	0.030000
64	2017-01-31	0.028000
65	2025-12-31	0.026000
66	2005-08-31	0.032000
67	2006-12-29	0.032000
68	2007-10-31	0.032000
69	2007-12-31	0.032000
70	2011-11-30	0.031000
71	2013-01-31	0.029000
72	2018-02-28	0.023000
73	2019-04-30	0.026000
74	2021-04-30	0.023000
75	2022-07-29	0.024000
76	2005-05-31	0.032000
77	2011-07-29	0.032000
78	2011-08-31	0.032000
79	2011-10-31	0.032000
80	2022-04-29	0.023000
81	2024-05-31	0.026000
82	2003-02-28	0.033000
83	2003-12-19	0.009000
84	2006-07-31	0.032000
85	2016-10-31	0.026000
86	2022-05-31	0.024000
87	2007-08-31	0.032000
88	2009-02-27	0.031000
89	2021-02-26	0.022000
90	2021-10-29	0.023000
91	2021-11-30	0.022000
92	2022-12-30	0.026000
93	2008-03-31	0.032000
94	2016-06-30	0.026000
95	2017-11-30	0.025000
96	2018-01-31	0.026000
97	2004-01-30	0.032000
98	2014-11-28	0.029000
99	2017-06-30	0.025000
100	2023-09-29	0.025000
101	2004-05-28	0.032000
102	2004-09-30	0.032000
103	2009-03-31	0.030000
104	2021-12-31	0.023000
105	2013-04-30	0.028000
106	2014-03-31	0.031000
107	2020-05-29	0.024000
108	2018-06-29	0.025000
109	2021-09-30	0.022000
110	2024-02-29	0.025000
111	2009-11-30	0.028000
112	2018-09-28	0.026000
113	2023-10-31	0.026000
114	2024-01-31	0.027000
115	2014-01-31	0.031000
116	2015-08-31	0.029000
117	2020-03-31	0.024000
118	2022-06-30	0.023000
119	2010-11-30	0.030000
120	2008-08-29	0.032000
121	2018-07-31	0.026000
122	2020-08-31	0.023000
123	2020-12-02	0.046000
124	2023-11-30	0.025000
125	2024-04-30	0.026000
126	2003-06-30	0.032000
127	2003-07-31	0.032000
128	2012-02-29	0.027000
129	2018-11-30	0.030000
130	2024-10-31	0.025000
131	2026-07-31	0.026000
132	2009-06-30	0.030000
133	2013-08-30	0.029000
134	2019-11-29	0.024000
135	2022-11-30	0.025000
136	2012-09-28	0.029000
137	2015-06-30	0.028000
138	2022-01-31	0.023000
139	2026-03-31	0.026000
140	2005-12-16	0.015000
141	2006-02-28	0.033000
142	2009-08-31	0.030000
143	2011-05-31	0.031000
144	2005-01-31	0.032000
145	2005-06-30	0.032000
146	2014-02-28	0.028000
147	2018-12-31	0.027000
148	2012-05-31	0.030000
149	2014-06-30	0.029000
150	2016-02-29	0.025000
151	2024-12-31	0.026000
152	2003-01-31	0.032000
153	2006-05-31	0.032000
154	2008-04-30	0.032000
155	2009-01-30	0.031000
156	2013-09-30	0.028000
157	2013-10-31	0.030000
158	2019-12-31	0.025000
159	2020-09-30	0.022000
160	2003-09-30	0.032000
161	2006-08-31	0.032000
162	2012-10-31	0.029000
163	2013-03-28	0.029000
164	2019-08-30	0.026000
165	2021-03-31	0.024000
166	2008-01-31	0.032000
167	2008-10-31	0.032000
168	2012-11-30	0.027000
169	2013-06-28	0.028000
170	2023-12-29	0.027000
171	2017-08-31	0.026000
172	2020-11-30	0.023000
173	2021-12-03	0.025000
174	2022-10-31	0.025000
175	2025-10-31	0.026000
176	2009-05-29	0.030000
177	2018-04-30	0.026000
178	2022-03-31	0.024000
179	2024-03-28	0.027000
180	2013-05-31	0.029000
181	2015-03-31	0.029000
182	2018-10-31	0.027000
183	2019-07-31	0.026000
184	2005-03-31	0.033000
185	2005-07-29	0.031000
186	2013-07-31	0.029000
187	2016-07-29	0.027000
188	2023-05-31	0.026000
189	2004-12-17	0.073000
190	2012-03-30	0.029000
191	2012-08-31	0.029000
192	2015-10-30	0.029000
193	2026-02-27	0.023000
194	2023-04-28	0.025000
195	2025-06-30	0.025000
196	2007-07-31	0.032000
197	2008-12-31	0.032000
198	2011-01-31	0.030000
199	2019-12-03	0.042000
200	2004-11-30	0.032000
201	2005-11-30	0.032000
202	2010-02-26	0.031000
203	2024-09-30	0.025000
204	2011-06-30	0.031000
205	2022-08-31	0.025000
206	2025-08-29	0.026000
207	2003-12-31	0.034000
208	2007-04-30	0.032000
209	2011-03-31	0.030000
210	2011-09-30	0.031000
211	2004-10-29	0.031000
212	2025-05-30	0.026000
213	2016-04-29	0.026000
214	2016-12-30	0.028000
215	2017-07-31	0.027000
216	2017-10-31	0.026000
217	2007-06-29	0.032000
218	2009-10-30	0.029000
219	2012-01-31	0.030000
220	2015-01-30	0.030000
221	2025-03-31	0.026000
222	2007-01-31	0.032000
223	2021-08-31	0.022000
224	2023-02-28	0.023000
225	2003-05-30	0.032000
226	2006-01-31	0.032000
227	2006-03-31	0.032000
228	2009-07-31	0.030000
229	2015-05-29	0.029000
230	2017-09-29	0.025000
231	2003-08-29	0.032000
232	2004-03-31	0.032000
233	2014-04-30	0.030000
234	2014-05-30	0.030000
235	2007-11-30	0.032000
236	2020-10-30	0.023000
237	2021-07-30	0.024000
238	2025-02-28	0.023000
239	2003-04-30	0.033000
240	2009-04-30	0.031000
241	2014-09-30	0.029000
242	2015-02-27	0.027000
243	2005-09-30	0.032000
244	2010-01-29	0.030000
245	2010-12-31	0.031000
246	2019-05-31	0.027000
247	2017-04-28	0.026000
248	2019-02-28	0.024000
249	2020-04-30	0.023000
250	2023-08-31	0.025000
251	2007-09-28	0.032000
252	2009-09-30	0.031000
253	2016-05-31	0.027000
254	2016-11-30	0.026000
255	2004-08-31	0.032000
256	2019-09-30	0.024000
257	2010-03-31	0.030000
258	2012-04-30	0.029000
259	2026-01-30	0.026000
260	2007-02-28	0.032000
261	2017-12-29	0.026000
262	2020-02-28	0.022000
263	2023-01-31	0.026000
264	2003-03-31	0.032000
265	2004-04-30	0.032000
266	2025-07-31	0.026000
267	2020-06-30	0.023000
268	2025-04-30	0.025000
269	2006-04-28	0.032000
270	2011-02-28	0.031000
271	2011-04-29	0.030000
272	2015-12-31	0.028000
273	2013-11-29	0.029000
274	2021-05-28	0.024000
275	2023-03-31	0.026000
276	2023-06-30	0.025000
277	2017-05-31	0.026000
278	2021-01-29	0.024000
279	2022-02-28	0.020000
280	2024-08-30	0.025000
281	2005-04-29	0.033000
282	2008-09-30	0.032000
283	2008-11-28	0.032000
284	2014-12-31	0.028000
285	2026-06-30	0.026000
286	2005-10-31	0.032000
287	2005-12-30	0.032000
288	2015-04-30	0.028000
289	2024-11-29	0.025000

5.6 KiB Raw Blame History

5.6 KiB

Raw Blame History