DEPT OF DEFENSE NAICS 531 volume spike: +238.9%

Federal procurement posted 4,763 opportunities totaling $3.8B in estimated dollar volume during the week of 2026-10-11 through 2026-10-18. The dominant buyer by dollar volume was DEPT OF DEFENSE at $2.3B, with 3989 solicitations (-3.5% vs. 90-day baseline). Leading NAICS-3 family: 332 with 1025 solicitations totaling $47.6M. 30 notable signals surfaced across the five anomaly categories (2 volume spikes, 0 net-new buyers, 25 large-dollar opportunities, 3 tight-response solicitations, 0 IDIQ task-order concentrations). Average response window across the week: 14.1 days.

Volume spikes (agencies buying more this week)

• DEPT OF DEFENSE NAICS 531: 34 awards this week vs. a 90-day baseline of 10.03/week (+238.9%). Total dollar volume: $0. Anchor: 9c92c06e806249eb85e23f18de87ab38. Historical: $33.1B obligated last 12 months across 2,834 awards (-24.1% YoY). Top vendor: THE BOEING COMPANY (26.0%). (Agency-only FPDS match; no NAICS-specific history found.)
• JUSTICE NAICS 623: 7 awards this week vs. a 90-day baseline of 2.1/week (+233.3%). Total dollar volume: $102.3M. Anchor: 63cecc6984c844b7a5915c12bd7a9efd. Historical: $173.3M obligated last 12 months across 67 awards (-67.8% YoY). Top vendor: PILATUS AIRCRAFT USA LTD. (23.4%). (Agency-only FPDS match; no NAICS-specific history found.)

Large-dollar opportunities ($10M+)

• 35fcff28e3794e55953d2282a561996a: $611.5M -- DEPT OF DEFENSE (NAICS 336411). Historical: $19.1B obligated last 12 months across 124 awards (+7.7% YoY). Top vendor: THE BOEING COMPANY (44.3%).
• fb3dc2bfe38f4cadad0b01ec41e87e68: $552.4M -- INTERNATIONAL BOUNDARY AND WATER COMMISSION: US-MEXICO (NAICS 237110).
• 0c00feb5970446be9d8525a6381c3cc6: $404.4M -- DEPT OF DEFENSE (NAICS 336414). Historical: $19.1B obligated last 12 months across 124 awards (+7.7% YoY). Top vendor: THE BOEING COMPANY (44.3%).
• 3725c76d9dca43d3b0a68ced239fe8d1: $263.9M -- DEPT OF DEFENSE (NAICS 541330). Historical: $4.3B obligated last 12 months across 263 awards (-58.1% YoY). Top vendor: RAYTHEON COMPANY (18.1%).
• 4032e46f98f44f2da8ba5041b239e05b: $199.9M -- VETERANS AFFAIRS (NAICS 541512). Historical: $394.1M obligated last 12 months across 41 awards (-56.3% YoY). Top vendor: BOOZ ALLEN HAMILTON INC (43.4%).
• 5e5760c2a5214c8bbdd5d9b6b8db4a67: $199.9M -- VETERANS AFFAIRS (NAICS 541512). Historical: $394.1M obligated last 12 months across 41 awards (-56.3% YoY). Top vendor: BOOZ ALLEN HAMILTON INC (43.4%).
• a8c7649e72b74649ad83d42e684e047f: $180.0M -- DEPT OF DEFENSE (NAICS ). Historical: $33.1B obligated last 12 months across 2,834 awards (-24.1% YoY). Top vendor: THE BOEING COMPANY (26.0%).
• f81fdb396a4646baab24bde24d15e75e: $136.6M -- HOMELAND SECURITY (NAICS 237990). Historical: $7.5M obligated last 12 months across 1 awards. Top vendor: BRECHAN CONSTRUCTION, LLC (100.0%).

Tight-response solicitations (<14 days, $1M+)

• 9fa5e129d802434fb6667b0cc7c7ae57: $4.0M with a 0-day window. GENERAL SERVICES ADMINISTRATION, NAICS 541611. Deadline: 2026-10-16T11:12:13-05:00.
• aba4d65dfeea4bd49bf00107e80c9481: $4.0M with a 0-day window. GENERAL SERVICES ADMINISTRATION, NAICS 541611. Deadline: 2026-10-16T11:12:13-05:00.
• 79a03443a40c4df88f38ed43490e3b7e: $3.0M with a 0-day window. GENERAL SERVICES ADMINISTRATION, NAICS 561311. Deadline: 2026-10-16T11:12:13-05:00.

About this brief

This brief is a structured factual summary of the prior 7 days of SAM.gov bulk-ingest opportunities. Every number above traces back to either the aggregate buckets in the context.json the aggregator wrote, or a specific notice_id cited inline. The aggregator computes five deterministic anomaly categories (volume spikes, new buyers, large-dollar opportunities, tight-response solicitations, IDIQ task-order concentration). Editorial themes -- the "what this means for vendors" overlay a Cowork-driven Monday session adds on top -- are NOT included in templated briefs. A future Cowork session for the same ISO week may overwrite this brief with analyst prose; the structured signals stay intact across updates.