← All S&P SmallCap 600 additions
PI — S&P 600 index addition
Impinj
Sector
Unknown
Announced
Sep 23, 2024
Effective
Sep 23, 2024
Replaced
B. Riley Financial
1W after inclusion
+4.0%
+3.4% vs S&P 600
1M after inclusion
+6.9%
+6.9% vs S&P 600
3M after inclusion
-28.0%
-32.2% vs S&P 600
6M after inclusion
-56.6%
-50.3% vs S&P 600
1Y after inclusion
-11.1%
-16.5% 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: +27.2%
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.