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Longduoduo Co Ltd (LDDD) red flags

CIK 0001892316 路 Hohhot 路 SIC 8000 路 All EDGAR filings

1 verified red-flag event(s) since 2025-04-01 and 17 earlier one(s) from our 2015-2025 history. Red flag score: 10 how it's calculated

1Longduoduo Co Ltd (LDDD) Filing-delay notice, annual report filed within extension (NT 10-K)nano2026-09-28
report filed within the extension on 2026-09-30 路 company history

Earlier red flags (2015 to Apr 2025)

FiledFlag (links to the SEC filing)SeverityWhy
2024-10-15Going-concern doubt5in auditor's report; also within 90 days: Auditor change
2024-09-30Filing-delay notice, annual report filed within extension (NT 10-K)1report filed within the extension on 2024-10-15
2024-08-16Auditor change4also within 90 days: Going-concern doubt
2024-02-07Going-concern doubt (10-Q)3quarterly (unaudited) disclosure
2023-11-20Going-concern doubt (10-Q)4quarterly (unaudited) disclosure; also within 90 days: Auditor change, Filing-delay notice, annual report (NT 10-K)
2023-11-14Going-concern doubt5in auditor's report; also within 90 days: Auditor change, Filing-delay notice, annual report (NT 10-K)
2023-11-14Filing-delay notice, quarterly report filed within extension (NT 10-Q)1report filed within the extension on 2023-11-20
2023-10-06Auditor change4also within 90 days: Going-concern doubt, Filing-delay notice, annual report (NT 10-K)
2023-09-28Late annual report (NT 10-K)5filed late on 2023-11-14; also within 90 days: Auditor change, Going-concern doubt
2023-06-30Auditor change4also within 90 days: Going-concern doubt, Filing-delay notice, annual report (NT 10-K)
2023-05-22Going-concern doubt (10-Q)4quarterly (unaudited) disclosure; also within 90 days: Auditor change
2023-05-15Filing-delay notice, quarterly report filed within extension (NT 10-Q)1report filed within the extension on 2023-05-22
2023-02-14Going-concern doubt (10-Q)3quarterly (unaudited) disclosure
2022-11-30Going-concern doubt (10-Q)4quarterly (unaudited) disclosure; also within 90 days: Filing-delay notice, quarterly report (NT 10-Q)
2022-11-14Late quarterly report (NT 10-Q)4filed late on 2022-11-30; also within 90 days: Going-concern doubt
2022-10-13Going-concern doubt5in auditor's report; also within 90 days: Filing-delay notice, quarterly report (NT 10-Q)
2022-09-28Filing-delay notice, annual report filed within extension (NT 10-K)1report filed within the extension on 2022-10-13

From our 10-year history, classified with the same rules as current flags. Older flags have no page of their own; see the research study for how flagged stocks did afterwards.

Red flag score: 10 / 100 · low

Computed only from the verified red flags below: each flag earns points for its severity, loses half its weight every 180 days, and companies with several different flag types in the past year get a bonus. Total points 5.5 → score = 100 × (1 − e−points/50) = 10. Full method

FlagFiledSeverityPointsAgeDecayCounts
Filing-delay notice, annual report filed within extension (NT 10-K)2026-09-281/51.220 d×0.931.1
Going-concern doubt (history)2024-10-155/530.0733 d×0.061.8
Filing-delay notice, annual report filed within extension (NT 10-K) (history)2024-09-301/51.2748 d×0.060.1
Auditor change (history)2024-08-163/514.0793 d×0.050.7
Going-concern doubt (history)2024-02-073/514.0984 d×0.020.3
Going-concern doubt (history)2023-11-203/50.0 (same batch)1063 d×0.020.0
Going-concern doubt (history)2023-11-145/530.01069 d×0.020.5
Filing-delay notice, quarterly report filed within extension (NT 10-Q) (history)2023-11-141/51.21069 d×0.020.0
Auditor change (history)2023-10-063/514.01108 d×0.010.2
Late annual report (NT 10-K) (history)2023-09-284/519.81116 d×0.010.3
Auditor change (history)2023-06-303/514.01206 d×0.010.1
Going-concern doubt (history)2023-05-223/514.01245 d×0.010.1
Filing-delay notice, quarterly report filed within extension (NT 10-Q) (history)2023-05-151/51.21252 d×0.010.0
Going-concern doubt (history)2023-02-143/514.01342 d×0.010.1
Going-concern doubt (history)2022-11-303/514.01418 d×0.000.1
Late quarterly report (NT 10-Q) (history)2022-11-143/59.81434 d×0.000.0
Going-concern doubt (history)2022-10-135/530.01466 d×0.000.1
Filing-delay notice, annual report filed within extension (NT 10-K) (history)2022-09-281/51.21481 d×0.000.0

The red flag score summarizes how many, how serious and how recent a company's verified SEC red-flag filings are. It describes filing events only. It is not a fraud score, credit rating or prediction, and not investment advice.

What happened next

FlagDateCap at flag30d90d180d1y
Filing-delay notice, annual report filed within extension (NT 10-K)2026-09-28$15.3Mpendingpendingpendingpending
Going-concern doubt2024-10-15$164.7M-3.6%-8.4%-9.3%-83.0%
Filing-delay notice, annual report filed within extension (NT 10-K)2024-09-30$150.0M+2.0%+3.7%-8.7%-79.6%
Auditor change2024-08-16$157.5M+0.2%+1.0%-5.3%-5.0%
Going-concern doubt2024-02-07$159.6M-6.5%-7.9%-1.6%-8.8%
Going-concern doubt2023-11-20$192.3M+1.1%-23.9%-16.4%-24.7%
Going-concern doubt2023-11-14$201.9M+4.2%-18.8%-23.0%-18.5%
Filing-delay notice, quarterly report filed within extension (NT 10-Q)2023-11-14$201.9M+4.2%-18.8%-23.0%-18.5%
Auditor change2023-10-06$60.3M+133.1%+84.5%+106.4%+99.2%
Late annual report (NT 10-K)2023-09-28$252.0M-93.6%-93.9%-95.2%-95.1%
Auditor change2023-06-30$1.92B+3.0%-86.2%-89.1%-91.4%
Going-concern doubt2023-05-22n/a-39.5%-20.8%-92.6%-93.9%
Filing-delay notice, quarterly report filed within extension (NT 10-Q)2023-05-15n/a-23.5%-15.2%-92.1%-93.8%
Going-concern doubt2023-02-14$1.82B+47.2%+45.1%+22.4%-91.0%
Going-concern doubt2022-11-30n/an/an/an/an/a
Late quarterly report (NT 10-Q)2022-11-14n/an/an/an/an/a
Going-concern doubt2022-10-13n/an/an/an/an/a
Filing-delay notice, annual report filed within extension (NT 10-K)2022-09-28n/an/an/an/an/a

Stock return after each flag; pending = window not yet elapsed; n/a = no price data (for older flags often because the stock no longer trades).

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