f/htd-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

5.2 KiB

Raw Blame History

1	Date	Dividends
2	2013-09-11	0.099000
3	2015-06-09	0.121000
4	2021-07-09	0.138000
5	2017-02-09	0.138000
6	2017-08-09	0.138000
7	2023-02-10	0.138000
8	2005-02-22	0.097000
9	2007-04-10	0.097000
10	2009-09-09	0.091000
11	2009-11-10	0.091000
12	2014-10-09	0.121000
13	2021-08-11	0.138000
14	2022-07-08	0.138000
15	2017-05-09	0.138000
16	2019-12-11	0.138000
17	2021-04-09	0.138000
18	2026-05-11	0.158000
19	2006-12-07	0.629000
20	2008-02-08	0.125000
21	2008-12-11	0.140000
22	2016-07-07	0.121000
23	2015-02-10	0.121000
24	2016-09-08	0.121000
25	2022-09-09	0.138000
26	2026-04-13	0.158000
27	2009-12-09	0.091000
28	2015-07-09	0.121000
29	2018-10-10	0.138000
30	2022-03-10	0.138000
31	2005-08-09	0.097000
32	2013-10-09	0.099000
33	2017-07-11	0.138000
34	2004-06-22	0.097000
35	2005-03-22	0.097000
36	2010-05-11	0.091000
37	2021-06-10	0.138000
38	2011-04-07	0.091000
39	2018-12-28	0.138000
40	2008-04-10	0.125000
41	2014-12-24	0.121000
42	2018-02-09	0.138000
43	2014-11-10	0.121000
44	2021-02-10	0.138000
45	2025-10-14	0.158000
46	2023-06-09	0.138000
47	2004-10-19	0.097000
48	2005-06-09	0.097000
49	2012-01-11	0.099000
50	2014-03-11	0.110000
51	2006-02-09	0.097000
52	2010-07-08	0.091000
53	2006-04-11	0.097000
54	2012-04-10	0.099000
55	2023-11-10	0.138000
56	2025-01-13	0.138000
57	2016-04-07	0.121000
58	2022-11-10	0.138000
59	2024-03-08	0.138000
60	2024-06-13	0.138000
61	2005-12-08	0.096000
62	2008-03-10	0.125000
63	2012-03-08	0.099000
64	2015-10-08	0.121000
65	2016-10-11	0.138000
66	2021-12-10	0.138000
67	2024-09-13	0.138000
68	2007-09-12	0.097000
69	2012-02-09	0.099000
70	2013-03-07	0.099000
71	2016-06-09	0.121000
72	2012-09-12	0.099000
73	2015-08-11	0.121000
74	2007-01-10	0.097000
75	2015-12-28	0.121000
76	2018-04-11	0.138000
77	2024-05-10	0.138000
78	2006-06-08	0.097000
79	2023-05-10	0.138000
80	2019-07-10	0.138000
81	2023-10-11	0.138000
82	2024-11-12	0.138000
83	2025-02-13	0.138000
84	2004-07-20	0.097000
85	2005-04-19	0.097000
86	2006-10-10	0.097000
87	2009-01-08	0.140000
88	2025-09-12	0.158000
89	2017-06-08	0.138000
90	2017-10-11	0.138000
91	2019-03-08	0.138000
92	2024-07-11	0.138000
93	2018-11-09	0.138000
94	2020-02-12	0.138000
95	2026-01-12	0.158000
96	2007-05-09	0.097000
97	2007-07-10	0.097000
98	2012-08-09	0.099000
99	2011-08-09	0.099000
100	2013-04-09	0.099000
101	2022-06-10	0.138000
102	2024-10-11	0.138000
103	2022-08-10	0.138000
104	2006-01-11	0.097000
105	2013-07-09	0.099000
106	2019-05-10	0.138000
107	2020-10-09	0.138000
108	2023-03-10	0.138000
109	2025-04-11	0.138000
110	2016-05-10	0.121000
111	2007-12-11	0.714000
112	2009-06-09	0.091000
113	2011-01-11	0.091000
114	2013-05-09	0.099000
115	2004-09-21	0.097000
116	2007-02-08	0.097000
117	2009-05-07	0.091000
118	2022-05-11	0.138000
119	2025-11-13	0.158000
120	2026-08-13	0.158000
121	2006-07-11	0.097000
122	2008-05-09	0.125000
123	2018-06-08	0.138000
124	2019-09-12	0.138000
125	2018-12-12	0.543000
126	2020-11-10	0.138000
127	2021-09-10	0.138000
128	2005-11-09	0.097000
129	2011-05-10	0.091000
130	2011-11-09	0.099000
131	2013-12-10	0.110000
132	2011-02-09	0.091000
133	2015-09-09	0.121000
134	2016-03-09	0.121000
135	2018-08-10	0.138000
136	2013-11-07	0.099000
137	2014-06-10	0.110000
138	2017-11-10	0.138000
139	2004-11-16	0.097000
140	2005-05-17	0.097000
141	2005-09-08	0.097000
142	2012-07-10	0.099000
143	2019-11-08	0.138000
144	2020-05-08	0.138000
145	2015-04-09	0.121000
146	2014-09-10	0.121000
147	2025-12-11	0.158000
148	2005-01-18	0.097000
149	2005-10-11	0.097000
150	2010-12-09	0.091000
151	2011-12-08	0.099000
152	2014-05-08	0.110000
153	2021-05-12	0.138000
154	2022-02-10	0.138000
155	2023-09-08	0.138000
156	2009-08-11	0.091000
157	2017-12-28	0.138000
158	2019-12-27	0.138000
159	2023-08-10	0.138000
160	2004-12-21	0.097000
161	2011-03-09	0.091000
162	2012-05-09	0.099000
163	2017-09-08	0.138000
164	2014-08-07	0.121000
165	2024-08-12	0.138000
166	2012-10-09	0.099000
167	2008-01-10	0.125000
168	2008-06-09	0.125000
169	2010-03-09	0.091000
170	2011-10-11	0.099000
171	2020-08-12	0.138000
172	2006-11-09	0.097000
173	2007-11-07	0.097000
174	2010-02-09	0.091000
175	2014-12-09	0.121000
176	2020-03-11	0.138000
177	2022-01-12	0.138000
178	2010-08-10	0.091000
179	2010-11-09	0.091000
180	2015-03-10	0.121000
181	2018-09-13	0.138000
182	2016-08-09	0.121000
183	2018-07-11	0.138000
184	2006-03-09	0.097000
185	2006-05-09	0.097000
186	2006-09-07	0.097000
187	2015-11-09	0.121000
188	2020-12-10	0.159000
189	2021-03-10	0.138000
190	2018-03-09	0.138000
191	2019-04-10	0.138000
192	2009-02-10	0.140000
193	2010-01-12	0.091000
194	2014-07-09	0.121000
195	2017-04-11	0.138000
196	2008-07-11	0.125000
197	2025-03-13	0.138000
198	2025-06-12	0.138000
199	2019-08-09	0.138000
200	2010-10-07	0.091000
201	2012-06-07	0.099000
202	2013-02-07	0.099000
203	2015-12-09	0.121000
204	2009-04-08	0.091000
205	2011-06-09	0.091000
206	2021-11-10	0.138000
207	2023-07-12	0.138000
208	2007-08-09	0.097000
209	2020-07-10	0.138000
210	2023-04-12	0.138000
211	2024-12-12	0.138000
212	2026-03-12	0.158000
213	2009-03-10	0.140000
214	2011-09-08	0.099000
215	2012-12-11	0.099000
216	2013-01-10	0.099000
217	2020-12-30	0.138000
218	2022-12-09	0.165000
219	2007-03-08	0.097000
220	2009-07-09	0.091000
221	2011-07-07	0.099000
222	2014-04-09	0.110000
223	2026-07-13	0.158000
224	2008-09-12	0.140000
225	2010-04-08	0.091000
226	2016-11-09	0.138000
227	2024-02-09	0.138000
228	2025-05-12	0.138000
229	2013-12-26	0.110000
230	2014-02-11	0.110000
231	2016-12-08	0.302000
232	2017-03-09	0.138000
233	2010-06-09	0.091000
234	2016-12-28	0.138000
235	2019-10-10	0.138000
236	2022-04-08	0.138000
237	2020-04-09	0.138000
238	2023-01-12	0.138000
239	2023-12-08	0.138000
240	2025-07-11	0.158000
241	2004-05-18	0.097000
242	2006-08-09	0.097000
243	2012-11-08	0.099000
244	2015-05-07	0.121000
245	2007-10-09	0.097000
246	2017-12-08	0.665000
247	2020-06-10	0.138000
248	2026-02-12	0.158000
249	2022-10-12	0.138000
250	2008-08-11	0.140000
251	2013-08-08	0.099000
252	2019-02-08	0.138000
253	2021-10-08	0.138000
254	2025-08-11	0.158000
255	2026-06-11	0.158000
256	2004-04-20	0.097000
257	2004-08-17	0.097000
258	2008-10-09	0.140000
259	2019-06-12	0.138000
260	2018-05-10	0.138000
261	2008-11-10	0.140000
262	2016-02-09	0.121000
263	2020-09-10	0.138000
264	2024-04-10	0.138000
265	2024-01-11	0.138000
266	2007-06-07	0.097000
267	2009-10-08	0.091000
268	2010-09-09	0.091000
269	2013-06-11	0.099000

5.2 KiB Raw Blame History

5.2 KiB

Raw Blame History