← All S&P SmallCap 600 additions
KTOS — S&P 600 index addition
Kratos Defense & Security Solutions
Sector
Unknown
Announced
Mar 24, 2025
Effective
Mar 24, 2025
Replaced
Mativ Holdings
1W after inclusion
-8.7%
-7.9% vs S&P 600
1M after inclusion
+1.3%
+5.1% vs S&P 600
3M after inclusion
+32.5%
+29.1% vs S&P 600
6M after inclusion
+148.3%
+135.7% vs S&P 600
1Y after inclusion
+138.2%
+117.2% vs S&P 600
Indexed performance around the effective date (effective close = 100)
Prices last updated: 2026-09-16 06:30 UTC (9h ago)
Run-up in the 30 days into inclusion: +28.6%
Other stocks added to the S&P SmallCap 600
- ADIG — ADI Global Distribution joined on Aug 4, 2026.
- FIVN — Five9 joined on Aug 3, 2026.
- VVX — V2X, Inc. joined on Jul 27, 2026.
- TPC — Tutor Perini joined on Jul 24, 2026.
- ROAD — Construction Partners joined on Jul 22, 2026.
- KRMN — Karman Holdings joined on Jul 17, 2026.
See the full S&P SmallCap 600 additions log or the index review calendar.