f/emdax-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

3.6 KiB

Raw Blame History

1	Date	Dividends
2	2016-02-29	0.025000
3	2021-05-28	0.021000
4	2023-04-28	0.019000
5	2024-02-29	0.019000
6	2025-09-30	0.025000
7	2011-05-31	0.051000
8	2012-07-31	0.042000
9	2012-09-28	0.042000
10	2018-09-28	0.022000
11	2019-11-29	0.027000
12	2020-02-28	0.023000
13	2025-04-30	0.021000
14	2025-10-31	0.025000
15	2011-07-29	0.050000
16	2013-01-31	0.042000
17	2016-05-31	0.030000
18	2017-06-30	0.035000
19	2018-03-29	0.031000
20	2023-03-31	0.020000
21	2023-09-29	0.019000
22	2024-06-28	0.020000
23	2012-11-30	0.045000
24	2014-08-29	0.046000
25	2014-11-28	0.037000
26	2014-12-31	0.037000
27	2017-05-31	0.035000
28	2021-01-29	0.024000
29	2023-05-31	0.019000
30	2023-12-29	0.022000
31	2013-08-30	0.049000
32	2013-12-31	0.048000
33	2014-06-30	0.045000
34	2019-01-31	0.031000
35	2019-05-31	0.027000
36	2020-11-30	0.021000
37	2022-03-31	0.011000
38	2024-10-31	0.022000
39	2019-03-29	0.028000
40	2021-09-30	0.020000
41	2022-12-30	0.021000
42	2023-11-30	0.021000
43	2011-08-31	0.053000
44	2015-02-27	0.038000
45	2017-02-28	0.027000
46	2012-06-29	0.041000
47	2013-07-31	0.044000
48	2017-01-31	0.027000
49	2018-08-31	0.032000
50	2024-12-31	0.019000
51	2025-11-28	0.024000
52	2025-12-31	0.025000
53	2011-12-30	0.046000
54	2012-12-26	0.049000
55	2013-10-31	0.058000
56	2014-10-31	0.042000
57	2015-07-31	0.036000
58	2018-05-31	0.030000
59	2025-02-28	0.018000
60	2014-09-30	0.045000
61	2021-11-30	0.019000
62	2022-07-29	0.017000
63	2024-05-31	0.020000
64	2025-06-30	0.023000
65	2025-07-31	0.023000
66	2014-07-31	0.046000
67	2016-11-30	0.028000
68	2017-10-31	0.033000
69	2020-04-30	0.019000
70	2015-08-31	0.033000
71	2019-07-31	0.028000
72	2019-10-31	0.027000
73	2020-07-31	0.022000
74	2020-08-31	0.021000
75	2020-12-31	0.022000
76	2021-10-29	0.021000
77	2023-02-28	0.017000
78	2025-08-29	0.025000
79	2015-01-30	0.036000
80	2017-03-31	0.032000
81	2018-02-28	0.029000
82	2018-10-31	0.025000
83	2022-04-29	0.017000
84	2026-01-30	0.025000
85	2026-07-31	0.026000
86	2014-05-30	0.046000
87	2015-04-30	0.032000
88	2015-11-30	0.028000
89	2021-04-30	0.021000
90	2012-03-30	0.041000
91	2013-06-28	0.046000
92	2016-12-30	0.029000
93	2016-06-30	0.031000
94	2017-08-31	0.035000
95	2018-04-30	0.030000
96	2022-06-30	0.020000
97	2022-08-31	0.020000
98	2023-06-30	0.019000
99	2024-03-28	0.019000
100	2024-09-30	0.020000
101	2014-01-31	0.042000
102	2019-02-28	0.027000
103	2021-02-26	0.021000
104	2021-07-30	0.020000
105	2023-07-31	0.023000
106	2025-01-31	0.020000
107	2011-10-31	0.040000
108	2012-08-31	0.043000
109	2014-02-28	0.039000
110	2016-08-31	0.032000
111	2019-04-30	0.025000
112	2022-10-31	0.019000
113	2024-08-30	0.023000
114	2011-06-30	0.055000
115	2011-11-30	0.047000
116	2015-03-31	0.031000
117	2015-06-30	0.035000
118	2016-03-31	0.029000
119	2024-01-31	0.023000
120	2013-03-28	0.047000
121	2018-12-31	0.026000
122	2020-05-29	0.020000
123	2020-09-30	0.021000
124	2021-12-31	0.019000
125	2022-05-31	0.016000
126	2023-08-31	0.022000
127	2026-02-27	0.022000
128	2012-01-31	0.046000
129	2012-05-31	0.042000
130	2012-12-31	0.047000
131	2013-02-28	0.041000
132	2015-05-29	0.032000
133	2017-04-28	0.028000
134	2018-01-31	0.033000
135	2018-11-30	0.028000
136	2023-01-31	0.020000
137	2024-11-29	0.020000
138	2014-03-31	0.046000
139	2019-06-28	0.025000
140	2022-02-28	0.015000
141	2022-09-30	0.017000
142	2011-09-30	0.042000
143	2012-04-30	0.041000
144	2013-09-30	0.048000
145	2017-09-29	0.035000
146	2023-10-31	0.021000
147	2025-03-31	0.022000
148	2026-03-31	0.025000
149	2014-04-30	0.045000
150	2017-07-31	0.030000
151	2020-03-31	0.022000
152	2026-04-30	0.025000
153	2026-06-30	0.026000
154	2013-04-30	0.044000
155	2015-10-30	0.032000
156	2016-04-29	0.031000
157	2018-06-29	0.029000
158	2021-06-30	0.021000
159	2021-08-31	0.021000
160	2022-01-31	0.019000
161	2024-07-31	0.023000
162	2012-12-21	0.048000
163	2013-05-31	0.043000
164	2016-01-29	0.029000
165	2016-07-29	0.031000
166	2024-04-30	0.019000
167	2025-05-30	0.022000
168	2015-12-31	0.031000
169	2016-10-31	0.031000
170	2019-12-31	0.027000
171	2020-01-31	0.027000
172	2021-03-31	0.018000
173	2017-11-30	0.032000
174	2017-12-29	0.034000
175	2018-07-31	0.028000
176	2022-11-30	0.019000
177	2012-02-29	0.043000
178	2015-09-30	0.028000
179	2016-09-30	0.033000
180	2012-10-31	0.045000
181	2013-11-29	0.046000
182	2019-08-30	0.028000
183	2019-09-30	0.023000
184	2020-06-30	0.021000
185	2020-10-30	0.022000
186	2023-12-21	0.054000
187	2026-05-29	0.026000

3.6 KiB Raw Blame History

3.6 KiB

Raw Blame History