FINALLY......Signs of a meaningful Correction?

NDX100 Daily Chart @ Close 06/27/2017

Long time between updates as the Small Caps basically trade sideways (Time based Correction); the NDX100 has beeen 'where it's at' for 2017 & perhaps finally a 'crack' of sorts (Daily Close below Up- Trend Line > Dec16) basis Tuesday's Close @ 5671 amid further heavy losses?
A simple yet 'hefty' 38.2% retrace sees 5450 as the potential 1st Stop on this move lower; beyond that & matters get interesting ......interesting enough for the much mentioned (THEWEEKLY) sub 1.90% Gap in the US10yr Note to finally get a Fill of its own?). Time will tell.