3-D SYS CORP DEL

Ticker: DDD CUSIP: 88554D205 Class: Stock

Mount Yale Investment Advisors, LLC's Holding History (CIK: 0001744349)

Note: Option positions (PUT/CALL) are excluded.

Q3 2018

Shares 1,501 Value ($000) $20 Avg Close $17.24 Range $12.00 - $21.78

Q2 2018

Shares 1,924 Value ($000) $27 Avg Close $12.39 Range $9.00 - $15.34

Q1 2018

Shares 1,663 Value ($000) $19 Avg Close $10.68 Range $8.60 - $13.70

Period	Shares	Value ($000)	Average Close	Price Range
Q3 2018	1,501	$20	$17.24	$12.00 - $21.78
Q2 2018	1,924	$27	$12.39	$9.00 - $15.34
Q1 2018	1,663	$19	$10.68	$8.60 - $13.70