f/lldyx-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

5.1 KiB

Raw Blame History

1	Date	Dividends
2	2020-06-30	0.011000
3	2011-02-28	0.017000
4	2015-01-30	0.015000
5	2021-06-30	0.009000
6	2008-07-02	0.034000
7	2020-08-31	0.010000
8	2024-01-31	0.017000
9	2011-10-31	0.018000
10	2022-08-31	0.012000
11	2010-11-30	0.017000
12	2015-04-30	0.015000
13	2016-03-31	0.015000
14	2009-12-03	0.018000
15	2006-11-02	0.014000
16	2013-06-28	0.015000
17	2013-12-31	0.014000
18	2014-03-31	0.014000
19	2014-07-31	0.015000
20	2024-03-28	0.017000
21	2006-09-05	0.016000
22	2019-06-28	0.014000
23	2021-01-29	0.009000
24	2021-03-31	0.009000
25	2025-01-31	0.016000
26	2016-05-31	0.015000
27	2023-10-31	0.016000
28	2025-02-28	0.016000
29	2025-06-30	0.018000
30	2019-11-29	0.012000
31	2008-11-03	0.019000
32	2018-09-28	0.015000
33	2022-03-31	0.009000
34	2024-12-31	0.017000
35	2005-07-05	0.016000
36	2020-07-31	0.010000
37	2026-04-30	0.016000
38	2018-12-31	0.014000
39	2011-05-31	0.017000
40	2018-06-29	0.015000
41	2019-03-29	0.014000
42	2009-02-02	0.018000
43	2014-08-29	0.015000
44	2016-11-30	0.015000
45	2021-08-31	0.009000
46	2021-11-30	0.008000
47	2009-06-04	0.018000
48	2009-05-04	0.020000
49	2010-07-30	0.017000
50	2012-02-29	0.018000
51	2019-07-31	0.014000
52	2006-05-04	0.016000
53	2014-05-30	0.015000
54	2015-07-31	0.015000
55	2022-02-28	0.009000
56	2006-07-05	0.015000
57	2011-03-31	0.017000
58	2019-04-30	0.014000
59	2005-03-03	0.015000
60	2008-10-02	0.017000
61	2018-05-31	0.014000
62	2025-09-30	0.017000
63	2015-11-30	0.015000
64	2007-05-03	0.015000
65	2011-09-30	0.018000
66	2015-02-27	0.015000
67	2020-12-31	0.010000
68	2022-07-29	0.011000
69	2024-06-28	0.017000
70	2025-11-28	0.016000
71	2007-01-04	0.016000
72	2022-10-31	0.013000
73	2023-02-28	0.013000
74	2012-12-18	0.001000
75	2013-01-31	0.015000
76	2015-08-31	0.015000
77	2016-04-29	0.015000
78	2017-01-31	0.014000
79	2017-11-30	0.014000
80	2018-02-28	0.014000
81	2006-04-03	0.016000
82	2010-08-31	0.017000
83	2010-12-31	0.017000
84	2013-03-28	0.015000
85	2014-10-31	0.015000
86	2020-01-31	0.012000
87	2023-11-30	0.016000
88	2024-08-30	0.017000
89	2008-04-03	0.017000
90	2026-07-31	0.016000
91	2007-04-04	0.015000
92	2013-05-31	0.015000
93	2005-11-03	0.014000
94	2019-08-30	0.013000
95	2021-02-26	0.009000
96	2006-10-05	0.015000
97	2011-06-30	0.018000
98	2014-04-30	0.015000
99	2014-11-28	0.015000
100	2021-10-29	0.008000
101	2009-03-04	0.021000
102	2015-06-30	0.015000
103	2008-08-04	0.019000
104	2012-03-30	0.017000
105	2026-02-27	0.016000
106	2007-02-05	0.016000
107	2005-06-02	0.014000
108	2009-07-06	0.019000
109	2016-06-30	0.015000
110	2018-10-31	0.014000
111	2004-12-02	0.013000
112	2008-01-03	0.016000
113	2010-12-17	0.025000
114	2025-08-29	0.017000
115	2025-12-31	0.016000
116	2005-05-04	0.014000
117	2017-07-31	0.013000
118	2018-01-31	0.014000
119	2026-05-29	0.016000
120	2005-08-04	0.014000
121	2018-11-30	0.014000
122	2016-07-29	0.014000
123	2014-06-30	0.015000
124	2018-07-31	0.014000
125	2022-05-31	0.010000
126	2023-04-28	0.015000
127	2011-04-29	0.017000
128	2006-03-02	0.015000
129	2015-05-29	0.015000
130	2016-02-29	0.015000
131	2023-06-30	0.015000
132	2006-01-04	0.015000
133	2025-05-30	0.018000
134	2025-10-31	0.017000
135	2022-09-30	0.012000
136	2007-03-05	0.015000
137	2007-10-04	0.016000
138	2008-05-05	0.019000
139	2012-07-31	0.016000
140	2013-08-30	0.015000
141	2020-10-30	0.009000
142	2022-06-30	0.010000
143	2005-01-03	0.015000
144	2011-12-30	0.018000
145	2020-02-28	0.011000
146	2024-11-29	0.017000
147	2011-11-30	0.018000
148	2019-12-31	0.012000
149	2020-04-30	0.012000
150	2007-09-04	0.015000
151	2009-08-04	0.017000
152	2009-10-05	0.021000
153	2012-06-29	0.016000
154	2012-11-30	0.015000
155	2023-07-31	0.015000
156	2005-09-06	0.015000
157	2007-12-04	0.015000
158	2009-11-04	0.018000
159	2017-10-31	0.013000
160	2019-05-31	0.014000
161	2024-07-31	0.017000
162	2006-08-03	0.014000
163	2009-04-02	0.018000
164	2012-08-31	0.016000
165	2013-12-18	0.006000
166	2023-05-31	0.015000
167	2024-10-31	0.017000
168	2008-09-04	0.019000
169	2011-01-31	0.017000
170	2017-05-31	0.014000
171	2018-03-29	0.014000
172	2019-10-31	0.012000
173	2024-04-30	0.016000
174	2007-07-05	0.016000
175	2005-12-05	0.016000
176	2011-07-29	0.018000
177	2012-10-31	0.016000
178	2016-01-29	0.015000
179	2016-09-30	0.015000
180	2021-09-30	0.008000
181	2025-04-30	0.017000
182	2007-06-04	0.017000
183	2016-10-31	0.015000
184	2017-06-30	0.014000
185	2022-04-29	0.010000
186	2023-09-29	0.016000
187	2024-05-31	0.017000
188	2014-12-31	0.015000
189	2013-04-30	0.015000
190	2013-10-31	0.014000
191	2017-12-29	0.013000
192	2025-03-31	0.017000
193	2026-03-31	0.016000
194	2007-11-05	0.017000
195	2015-09-30	0.015000
196	2017-02-28	0.014000
197	2023-03-31	0.015000
198	2025-07-31	0.017000
199	2008-03-05	0.018000
200	2014-02-28	0.015000
201	2017-03-31	0.014000
202	2020-05-29	0.011000
203	2008-02-04	0.018000
204	2005-10-04	0.014000
205	2012-04-30	0.017000
206	2015-12-31	0.015000
207	2022-12-30	0.014000
208	2026-01-30	0.016000
209	2005-04-04	0.015000
210	2018-08-31	0.015000
211	2019-02-28	0.014000
212	2019-09-30	0.013000
213	2012-05-31	0.016000
214	2013-07-31	0.015000
215	2018-04-30	0.015000
216	2021-04-30	0.009000
217	2009-09-03	0.018000
218	2016-12-30	0.014000
219	2020-11-30	0.010000
220	2023-12-29	0.016000
221	2007-08-06	0.017000
222	2009-01-05	0.020000
223	2017-04-28	0.014000
224	2022-11-30	0.013000
225	2006-02-02	0.014000
226	2014-09-30	0.015000
227	2008-06-04	0.017000
228	2023-01-31	0.014000
229	2005-02-02	0.014000
230	2014-01-31	0.015000
231	2021-07-30	0.009000
232	2010-09-30	0.017000
233	2008-12-04	0.020000
234	2022-01-31	0.009000
235	2004-11-03	0.007000
236	2012-12-31	0.015000
237	2015-03-31	0.015000
238	2021-12-31	0.008000
239	2012-09-28	0.016000
240	2023-08-31	0.016000
241	2024-02-29	0.015000
242	2024-09-30	0.017000
243	2020-03-31	0.012000
244	2013-02-28	0.015000
245	2017-08-31	0.014000
246	2020-09-30	0.010000
247	2012-01-31	0.018000
248	2006-12-04	0.016000
249	2015-10-30	0.014000
250	2021-05-28	0.009000
251	2006-06-05	0.016000
252	2016-08-31	0.015000
253	2019-01-31	0.014000
254	2011-08-31	0.018000
255	2013-11-29	0.014000
256	2026-06-30	0.016000
257	2009-12-31	0.016000
258	2013-09-30	0.015000
259	2017-09-29	0.014000
260	2010-10-29	0.018000

5.1 KiB Raw Blame History

5.1 KiB

Raw Blame History