Summary

• The Russell 1,000 is down more than 3% since its June 2nd high, but several of its biggest losers have lost more than a fifth of their value.
• In just a week, Ciena has tumbled almost 30%, making it the biggest loser in the index after a 168% upswing on the year before the 6/2 close.
• Enphase Energy, AST SpaceMobile, MP Materials, Guidewire Software, SailPoint, QuantumScape, Aurora Innovation, and Lumentum are the other eight names that have fallen at least 20% over the past week.

The Russell 1,000 is down more than 3% since its June 2nd high, but several of its biggest losers have lost more than a fifth of their value. In just a week, Ciena (CIEN) has tumbled