NAS100 appears to be forming a large bearish cup-and-handle structure on the higher timeframe. The rounded recovery phase (cup) has completed, while the current consolidation may represent the handle portion of the pattern.
A breakdown below handle support would confirm the setup and project a measured move toward the 22,000 region. This target is derived by measuring the depth of the cup and applying it from the neckline breakdown point.
Bears will be looking for increasing downside momentum and a decisive close beneath support, while bulls need to reclaim recent highs to invalidate the pattern.
Key levels:

Resistance: Handle high
Confirmation: Neckline breakdown
Target: 22,000
Invalidation: Sustained move above handle resistance

As always, wait for confirmation before treating the pattern as active.