---
schema_version: "secwatch.filing_event.v1"
accession: "0001193125-21-308612"
form_type: "8-K"
ticker: "TER"
cik: "0000097210"
company_name: "TERADYNE, INC"
filed_at: "2021-10-27T23:59:59+00:00"
generated_at: "2026-06-28T17:48:30.089396+00:00"
event_type: "earnings"
sentiment: "positive"
materiality_score: 0.75
calibrated_materiality_score: 0.75
confidence: "high"
source: SEC EDGAR
---

# Teradyne Q3 revenue $951M (+16% YoY); GAAP EPS $1.41, non-GAAP $1.59

## Summary
- Semiconductor Test revenue $688M; Industrial Automation $91M (+32% YoY) amid supply constraints.
- GAAP gross margin 60%, up from 56% in Q3 2020; revenue 16% YoY growth.
- Q4 2021 guidance: revenue $820M-$900M, GAAP EPS $1.08-$1.33, non-GAAP $1.14-$1.40.
- Full-year 2021 sales expected to grow 18% YoY at guidance midpoint.
- CEO cites eighth consecutive quarter of double-digit YoY revenue and profit growth.

## SEC filing metadata
- accession: 0001193125-21-308612
- form_type: 8-K
- ticker: TER
- cik: 0000097210
- company_name: TERADYNE, INC
- filed_at: 2021-10-27T23:59:59+00:00
- event_type: earnings
- sentiment: positive
- materiality_score: 0.75
- calibrated_materiality_score: 0.75
- confidence: high
- sec_items: 2.02, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/97210/000119312521308612/0001193125-21-308612-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/97210/000119312521308612/d229058d8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001193125-21-308612
- JSON: https://secwatch.observer/filing/0001193125-21-308612.json
- Plain text: https://secwatch.observer/filing/0001193125-21-308612.txt

This AI-assisted summary is a reading aid. Review the linked SEC EDGAR filing before relying on any specific claim.