Sanmina Set for MidCap 400 Inclusion, Exits SmallCap 600 on June 22
SANM•Sanmina will join the S&P MidCap 400 and exit the S&P SmallCap 600 effective June 22, 2026, reflecting its market capitalization growth past small-cap thresholds. The change is likely to attract new passive inflows from funds tracking the MidCap 400, boosting demand for Sanmina shares.
1. Index Rebalance Details
Before trading on June 22, 2026, Sanmina will be added to the S&P MidCap 400 and removed from the S&P SmallCap 600 as part of the quarterly reconstitution, reflecting its market capitalization growth into the mid-cap range.
2. Implications for Sanmina Shares
Inclusion in the MidCap 400 typically triggers purchases by passive funds tracking the index, potentially boosting trading volume and share demand, while removal from the SmallCap 600 may prompt outflows from small-cap ETFs.




