Ducommun

2 serious warning signs in Ducommun’s filings.

We look for five warning signs: doubt it can keep going, weak checks on its own accounts, a notice that its past accounts can't be relied on, a change of auditor, and one customer bringing in a big share of sales. We don't check lawsuits, investigations or debt yet.

We checked the auditor's report, internal controls, restatement notices, auditor changes and big customers in the 10-K filed 26 Feb 2026, plus the 10-Q filed 6 Aug 2026 and 5 later 8-Ks.

• Weak checks on its own accounts

  Serious

  The company said its checks on its own accounts did not work at the end of its latest quarter. Mistakes could slip into the numbers.

  “Under the supervision and with the participation of our management, including the Chief Executive Officer (“CEO”) and the Chief Financial Officer (“CFO”), we carried out an evaluation of the effectiveness of the design and operation of our disclosure controls and procedures as defined in Rules 13a-15(e) and 15d-15(e) under the Securities Exchange Act of 1934, as amended (“Exchange Act”) and have concluded that as of July 4, 2026 due to the material weakness in our internal control over financial reporting described below, our disclosure controls and procedures were not effective.”

  From the 10-Q filed 6 August 2026, Part I, Item 4. Controls and Procedures. Read it in the filing

• Its past accounts can't be relied on

  Serious

  It told the SEC its earlier accounts should no longer be relied on, usually because they contained errors.

  8-K Item 4.02 filed 1 May 2026: the company said its earlier financial statements should no longer be relied on.

  From an 8-K filed 1 May 2026: Previously issued accounts should no longer be relied on. Open the filing

Cheap for a reason is the question the numbers cannot answer.

Whether the price already reflects the risks is what the deep dive is for.