PDF SOLUTIONS INC

Ticker: PDFS CUSIP: 693282105 Class: Common Stock

Cambridge Investment Research Advisors, Inc.'s Holding History (CIK: 0001419186)

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

Q3 2013

Shares 26,840 Value ($000) $570 Avg Close $20.57 Range $18.09 - $22.20

Q2 2013

Shares 27,531 Value ($000) $507 Avg Close $17.41 Range $14.95 - $19.03

Period	Shares	Value ($000)	Average Close	Price Range
Q3 2013	26,840	$570	$20.57	$18.09 - $22.20
Q2 2013	27,531	$507	$17.41	$14.95 - $19.03