---
schema_version: "secwatch.filing_event.v1"
accession: "0001171843-26-002510"
form_type: "8-K"
ticker: "GSBC"
cik: "0000854560"
company_name: "GREAT SOUTHERN BANCORP, INC."
filed_at: "2026-04-16T23:59:59+00:00"
generated_at: "2026-05-15T05:58:15.787422+00:00"
event_type: "earnings"
sentiment: "positive"
materiality_score: 0.75
calibrated_materiality_score: 0.75
confidence: "high"
source: SEC EDGAR
---

# Great Southern Bancorp Q1 earnings $1.58 EPS, up from $1.47; net interest margin expands to 3.71%

## Summary
- Q1 2026 net income $17.5M ($1.58 diluted EPS) vs $17.2M ($1.47) a year ago, up 7.5%.
- Net interest margin improved to 3.71% from 3.57% YoY; net interest income $48.3M, down 2%.
- Non-performing assets rose to $10.1M (0.18% of assets) from $8.1M; loan portfolio grew 2.3% to $4.46B.
- Repurchased 269k shares at avg $62.55; declared $0.43/share dividend; book value $58.27.
- Capital ratios well above well-capitalized; tangible common equity 11.0% of tangible assets.

## SEC filing metadata
- accession: 0001171843-26-002510
- form_type: 8-K
- ticker: GSBC
- cik: 0000854560
- company_name: GREAT SOUTHERN BANCORP, INC.
- filed_at: 2026-04-16T23:59:59+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/854560/000117184326002510/0001171843-26-002510-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/854560/000117184326002510/f8k_041526.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001171843-26-002510
- JSON: https://secwatch.observer/filing/0001171843-26-002510.json
- Plain text: https://secwatch.observer/filing/0001171843-26-002510.txt

## Key facts
- Earnings Releases
  GREAT SOUTHERN BANCORP, INC. reported the quarter ended March 31, 2026 results: net income $17.5 million, EPS $1.58 per diluted common share.
  - Period: the quarter ended March 31, 2026
  - Net income: $17.5 million
  - EPS: $1.58 per diluted common share
  - Result: preliminary results
  source text: preliminary earnings for the three months ended March 31, 2026, were $1.58 per diluted common share ($17.5 million net income)
  evidence_url: https://www.sec.gov/Archives/edgar/data/854560/000117184326002510/0001171843-26-002510-index.htm

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