f/earrx-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

2.2 KiB

Raw Blame History

1	Date	Dividends
2	2015-09-30	0.015000
3	2014-10-31	0.008000
4	2014-12-31	0.024000
5	2015-07-31	0.015000
6	2025-03-28	0.098000
7	2014-05-30	0.039000
8	2016-08-31	0.020000
9	2016-12-30	0.014000
10	2021-06-29	0.116000
11	2017-12-28	0.060000
12	2022-06-29	0.147000
13	2024-09-27	0.081000
14	2010-07-30	0.016000
15	2014-08-29	0.014000
16	2016-06-30	0.026000
17	2013-06-28	0.001000
18	2011-10-31	0.023000
19	2019-09-27	0.070000
20	2010-11-30	0.011000
21	2011-09-30	0.011000
22	2014-07-31	0.018000
23	2024-12-30	0.062000
24	2010-12-31	0.015000
25	2013-09-30	0.011000
26	2020-06-29	0.016000
27	2010-12-22	0.076000
28	2015-06-30	0.013000
29	2016-03-31	0.013000
30	2023-12-28	0.120000
31	2026-03-30	0.048000
32	2012-05-31	0.043000
33	2013-10-31	0.015000
34	2020-03-30	0.051000
35	2021-12-30	0.068000
36	2010-08-31	0.006000
37	2010-10-29	0.016000
38	2013-05-31	0.017000
39	2015-12-31	0.061000
40	2014-03-31	0.028000
41	2016-10-31	0.016000
42	2025-06-27	0.127000
43	2011-07-29	0.031000
44	2011-06-30	0.040000
45	2017-06-30	0.016000
46	2017-09-28	0.032000
47	2023-09-28	0.100000
48	2011-05-31	0.056000
49	2012-11-30	0.027000
50	2011-01-31	0.010000
51	2013-04-30	0.028000
52	2019-06-27	0.080000
53	2019-12-30	0.082000
54	2020-12-30	0.077000
55	2011-08-31	0.001000
56	2014-02-28	0.008000
57	2015-11-30	0.021000
58	2017-04-28	0.016000
59	2023-06-29	0.139000
60	2010-06-30	0.024000
61	2016-07-29	0.022000
62	2023-03-30	0.058000
63	2010-09-30	0.010000
64	2011-11-30	0.015000
65	2011-12-21	0.104000
66	2011-12-30	0.001000
67	2024-03-27	0.059000
68	2012-04-30	0.027000
69	2011-04-29	0.030000
70	2012-03-30	0.009000
71	2012-07-31	0.001000
72	2018-12-28	0.063000
73	2013-07-31	0.017000
74	2013-11-29	0.016000
75	2013-12-31	0.002000
76	2014-09-30	0.010000
77	2016-05-31	0.033000
78	2016-11-30	0.018000
79	2021-09-29	0.127000
80	2022-12-29	0.066000
81	2015-01-30	0.001000
82	2020-09-29	0.060000
83	2022-09-29	0.175000
84	2025-12-30	0.104000
85	2015-10-30	0.021000
86	2016-09-30	0.018000
87	2017-05-31	0.018000
88	2019-03-28	0.009000
89	2011-02-28	0.013000
90	2017-02-28	0.007000
91	2013-12-30	0.007000
92	2015-08-31	0.017000
93	2024-06-27	0.179000
94	2025-09-29	0.110000
95	2011-03-31	0.030000
96	2014-11-28	0.009000
97	2016-04-29	0.016000
98	2018-09-27	0.070000
99	2012-06-29	0.021000
100	2012-10-31	0.014000
101	2018-03-28	0.047000
102	2022-03-30	0.078000
103	2014-06-30	0.017000
104	2021-03-30	0.037000
105	2017-03-31	0.036000
106	2012-12-13	0.130000
107	2018-06-28	0.074000
108	2026-06-29	0.235000
109	2014-04-30	0.026000
110	2012-12-31	0.002000
111	2013-08-30	0.018000

2.2 KiB Raw Blame History

2.2 KiB

Raw Blame History