8-K - Castellum, Inc. (0001877939) (Filer)
Published . Updated .
Filed: 2026-10-13 AccNo: 0001877939-26-000089 Size: 186 KB Item 8.01: Other Events Item 9.01: Financial Statements and Exhibits
Directly affected
- CTM Castellum
Named in this report.
Indirectly affected
- SPY SPDR S&P 500
The broad U.S. stock market
- TLT iShares 20+ Year Treasury Bond
Long-term U.S. government bonds
- QQQ Invesco QQQ
Large technology stocks
- GLD SPDR Gold Shares
Gold can move with the broad market
Price reaction, T-5 to T+3
Filed: 2026-10-13 AccNo: 0001877939-26-000089 Size: 186 KB Item 8.01: Other Events Item 9.01: Financial Statements and Exhibits
Source: sec-edgar
Castellum (CTM) since this story, compared with the market
Since the first closing price after “8-K - Castellum, Inc. (0001877939) (Filer),” Castellum (CTM) is -1.02%. The S&P 500 fund (SPY) is -0.40% over the same days, a -0.63% difference versus the market.
| Company | When | Move | Status |
|---|---|---|---|
| Castellum (CTM) | that day | -1.86% | final price |
| Castellum (CTM) | the next day | -0.68% | final price |
| Castellum (CTM) | two days later | -1.86% | final price |
| Castellum (CTM) | three days later | -3.42% | final price |
| Castellum (CTM) | three days earlier | +5.59% | final price |
| Castellum (CTM) | five days earlier | +6.95% | final price |
| GLD | that day | -1.49% | final price |
| GLD | the next day | +0.27% | final price |
| GLD | two days later | +0.10% | final price |
| GLD | three days later | -0.52% | final price |
| GLD | three days earlier | +0.77% | final price |
| GLD | five days earlier | -1.52% | final price |
| QQQ | that day | -1.97% | final price |
| QQQ | the next day | -2.08% | final price |
| QQQ | two days later | -4.55% | final price |
| QQQ | three days later | -3.41% | final price |
| QQQ | three days earlier | +1.02% | final price |
| QQQ | five days earlier | +1.90% | final price |
| SPY | that day | -1.08% | final price |
| SPY | the next day | -0.80% | final price |
| SPY | two days later | -1.89% | final price |
| SPY | three days later | -1.47% | final price |
| SPY | three days earlier | +0.06% | final price |
| SPY | five days earlier | -0.11% | final price |
| TLT | that day | +0.68% | final price |
| TLT | the next day | +2.09% | final price |
| TLT | two days later | +2.15% | final price |
| TLT | three days later | +1.42% | final price |
| TLT | three days earlier | -0.50% | final price |
| TLT | five days earlier | -1.52% | final price |
Who gains and who loses around Castellum (CTM)
Companies mentioned with this story
- CTM Castellum
For “8-K - Castellum, Inc. (0001877939) (Filer),” Castellum (CTM) is linked, with no stored direction, high confidence. Reason on file: SEC 8-K filing -> direct issuer disclosure -> CTM
How “8-K - Castellum, Inc. (0001877939) (Filer)” reaches Castellum (CTM)
“8-K - Castellum, Inc. (0001877939) (Filer)” (13 Oct 2026) reaches Castellum (CTM) through this story.
What ties Castellum (CTM) to the headline is this: SEC 8-K filing -> direct issuer disclosure -> CTM
The price range for Castellum (CTM), and the dates in the story
CTM traded between 0.56 and 0.64 across 14 sessions. The latest close on file is 0.57.
How strong the case is around Castellum (CTM)
10 out of 100
“8-K - Castellum, Inc. (0001877939) (Filer)” scores 10 out of 100. The score uses 1 sources, a +0.12% difference versus the S&P 500 (SPY), and 1 linked companies.