---
schema_version: "secwatch.filing_event.v1"
accession: "0001396440-26-000086"
form_type: "8-K"
ticker: "MAIN"
cik: "0001396440"
company_name: "Main Street Capital CORP"
filed_at: "2026-07-16T13:15:53+00:00"
generated_at: "2026-07-16T13:17:09.539329+00:00"
event_type: "earnings"
sentiment: "positive"
materiality_score: 0.8
calibrated_materiality_score: 0.8
confidence: "high"
source: SEC EDGAR
---

# Main Street Capital preliminary Q2 2026 NII $0.95-$0.99/share; NAV per share up 1.2%-1.5% sequentially

## Summary
- Preliminary NII per share $0.95-$0.99; DNII before taxes $1.06-$1.10 per share.
- NAV per share estimated $33.88-$33.96, up from $33.46 at March 31, 2026 (sixteenth consecutive quarterly increase).
- Estimated annualized ROE over 18% for Q2 2026.
- Non-accrual investments at 1.1% of portfolio at fair value, 4.0% at cost as of June 30, 2026.
- LMM portfolio net decrease of $30.6M; private loan portfolio net increase of $60.2M in cost basis.

## SEC filing metadata
- accession: 0001396440-26-000086
- form_type: 8-K
- ticker: MAIN
- cik: 0001396440
- company_name: Main Street Capital CORP
- filed_at: 2026-07-16T13:15:53+00:00
- event_type: earnings
- sentiment: positive
- materiality_score: 0.8
- calibrated_materiality_score: 0.8
- confidence: high
- sec_items: 2.02, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1396440/000139644026000086/0001396440-26-000086-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1396440/000139644026000086/main-20260716.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001396440-26-000086
- JSON: https://secwatch.observer/filing/0001396440-26-000086.json
- Plain text: https://secwatch.observer/filing/0001396440-26-000086.txt

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