f/nuw-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

4.1 KiB

Raw Blame History

1	Date	Dividends
2	2009-06-11	0.075000
3	2010-11-10	0.075000
4	2017-01-11	0.060000
5	2017-03-13	0.060000
6	2018-11-14	0.056000
7	2026-04-15	0.049000
8	2015-12-11	0.080000
9	2019-06-13	0.056000
10	2022-05-12	0.039000
11	2026-08-14	0.049000
12	2013-04-11	0.067000
13	2016-10-12	0.060000
14	2025-12-15	0.049000
15	2011-12-13	0.071000
16	2015-02-11	0.065000
17	2020-07-14	0.039000
18	2021-05-13	0.039000
19	2023-09-14	0.041000
20	2014-12-11	0.070000
21	2016-03-11	0.065000
22	2012-12-12	0.009000
23	2014-09-11	0.067000
24	2015-10-13	0.065000
25	2019-05-14	0.056000
26	2012-01-11	0.071000
27	2015-09-11	0.065000
28	2017-10-12	0.060000
29	2018-01-11	0.060000
30	2018-05-14	0.060000
31	2019-10-11	0.047000
32	2020-12-14	0.039000
33	2024-03-14	0.043000
34	2025-01-15	0.049000
35	2009-04-13	0.075000
36	2011-08-11	0.075000
37	2013-07-11	0.067000
38	2015-07-13	0.065000
39	2019-12-12	0.039000
40	2020-03-12	0.039000
41	2020-09-14	0.039000
42	2015-01-13	0.065000
43	2016-02-10	0.065000
44	2017-07-12	0.060000
45	2020-11-12	0.039000
46	2022-09-14	0.039000
47	2024-10-15	0.047000
48	2010-08-11	0.075000
49	2023-04-13	0.041000
50	2018-04-12	0.060000
51	2022-01-13	0.039000
52	2013-02-13	0.067000
53	2013-08-13	0.067000
54	2016-09-13	0.060000
55	2026-07-15	0.049000
56	2018-02-14	0.060000
57	2023-03-14	0.039000
58	2012-04-11	0.067000
59	2024-02-14	0.043000
60	2025-10-15	0.049000
61	2010-01-13	0.075000
62	2011-02-11	0.075000
63	2014-07-11	0.067000
64	2023-06-14	0.041000
65	2025-05-15	0.049000
66	2011-10-12	0.075000
67	2012-05-11	0.067000
68	2015-04-13	0.065000
69	2016-01-13	0.065000
70	2017-09-14	0.060000
71	2023-01-12	0.039000
72	2024-01-11	0.043000
73	2011-11-10	0.075000
74	2014-04-11	0.067000
75	2014-08-13	0.067000
76	2017-04-11	0.060000
77	2017-12-14	0.261000
78	2019-01-14	0.056000
79	2022-07-14	0.039000
80	2013-01-11	0.067000
81	2025-03-14	0.049000
82	2010-03-11	0.075000
83	2014-03-12	0.067000
84	2024-06-14	0.043000
85	2009-05-13	0.075000
86	2012-07-11	0.067000
87	2019-03-14	0.056000
88	2023-02-14	0.039000
89	2023-05-12	0.041000
90	2012-09-12	0.067000
91	2013-03-13	0.067000
92	2020-04-14	0.039000
93	2021-02-11	0.039000
94	2021-03-04	0.003000
95	2023-10-12	0.043000
96	2025-11-14	0.049000
97	2011-04-13	0.075000
98	2026-06-15	0.049000
99	2013-10-10	0.067000
100	2021-06-14	0.039000
101	2011-06-13	0.075000
102	2015-06-11	0.065000
103	2025-08-15	0.049000
104	2011-01-12	0.075000
105	2017-11-14	0.060000
106	2010-02-10	0.075000
107	2012-11-13	0.067000
108	2020-10-14	0.039000
109	2012-10-11	0.067000
110	2014-10-10	0.067000
111	2026-03-13	0.049000
112	2013-05-13	0.067000
113	2021-07-14	0.039000
114	2022-02-14	0.039000
115	2013-06-12	0.067000
116	2017-06-13	0.060000
117	2019-09-12	0.047000
118	2012-06-13	0.067000
119	2016-11-10	0.060000
120	2016-05-11	0.065000
121	2023-11-14	0.043000
122	2010-09-13	0.075000
123	2022-03-14	0.039000
124	2022-04-13	0.039000
125	2022-08-12	0.039000
126	2024-12-13	0.049000
127	2025-07-15	0.049000
128	2026-01-15	0.049000
129	2012-02-13	0.071000
130	2021-08-12	0.039000
131	2022-11-14	0.039000
132	2011-09-13	0.075000
133	2026-05-15	0.049000
134	2011-03-11	0.075000
135	2017-08-11	0.060000
136	2018-03-14	0.060000
137	2018-09-13	0.056000
138	2020-08-13	0.039000
139	2016-12-13	0.060000
140	2021-10-14	0.039000
141	2010-10-13	0.075000
142	2015-08-12	0.065000
143	2016-07-13	0.065000
144	2018-12-13	0.153000
145	2021-03-17	0.036000
146	2022-12-14	0.039000
147	2012-08-13	0.067000
148	2015-05-13	0.065000
149	2024-11-15	0.047000
150	2026-02-13	0.049000
151	2010-06-11	0.075000
152	2016-04-13	0.065000
153	2016-06-13	0.065000
154	2021-04-14	0.039000
155	2009-11-10	0.075000
156	2024-07-15	0.043000
157	2019-04-12	0.056000
158	2021-12-14	0.231000
159	2025-04-15	0.049000
160	2014-11-12	0.067000
161	2016-08-11	0.065000
162	2019-08-14	0.056000
163	2020-06-12	0.039000
164	2022-06-14	0.039000
165	2025-02-14	0.049000
166	2010-04-13	0.075000
167	2014-02-12	0.067000
168	2020-05-14	0.039000
169	2023-12-14	0.043000
170	2014-05-13	0.067000
171	2013-11-13	0.067000
172	2025-06-13	0.049000
173	2014-06-11	0.067000
174	2015-03-11	0.065000
175	2015-11-10	0.065000
176	2018-07-12	0.056000
177	2022-10-13	0.039000
178	2025-09-15	0.049000
179	2009-09-11	0.075000
180	2011-05-11	0.075000
181	2021-01-14	0.039000
182	2024-04-12	0.043000
183	2024-05-14	0.043000
184	2010-05-12	0.075000
185	2010-12-13	0.097000
186	2011-07-13	0.075000
187	2012-03-13	0.067000
188	2019-02-14	0.056000
189	2019-11-14	0.047000
190	2009-08-12	0.075000
191	2009-10-13	0.075000
192	2009-12-11	0.085000
193	2018-10-12	0.056000
194	2020-02-13	0.039000
195	2010-07-13	0.075000
196	2019-07-12	0.056000
197	2014-01-13	0.067000
198	2017-02-13	0.060000
199	2021-11-12	0.039000
200	2013-09-11	0.067000
201	2017-05-11	0.060000
202	2023-08-14	0.041000
203	2009-07-13	0.075000
204	2018-06-14	0.056000
205	2018-08-14	0.056000
206	2020-01-14	0.039000
207	2021-09-14	0.039000
208	2023-07-13	0.041000
209	2013-12-11	0.159000
210	2024-08-15	0.043000
211	2024-09-13	0.047000

4.1 KiB Raw Blame History

4.1 KiB

Raw Blame History