SPOK HLDGS INC

Ticker: SPOK CUSIP: 84863T106 Class: COM

ProShare Advisors LLC's Holding History (CIK: 0001357955)

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

Q1 2017

Shares 12,166 Value ($000) $231 Avg Close $19.40 Range $17.40 - $22.60

Q4 2016

Shares 16,526 Value ($000) $343 Avg Close $18.57 Range $16.05 - $21.85

Q2 2015

Shares 11,207 Value ($000) $189 Avg Close $18.28 Range $15.93 - $21.73

Q1 2015

Shares 13,601 Value ($000) $261 Avg Close $18.36 Range $16.27 - $20.45

Q4 2014

Shares 17,983 Value ($000) $312 Avg Close $15.59 Range $12.93 - $17.95

Q3 2014

Shares 14,344 Value ($000) $187 Avg Close $14.87 Range $13.00 - $18.30

Period	Shares	Value ($000)	Average Close	Price Range
Q1 2017	12,166	$231	$19.40	$17.40 - $22.60
Q4 2016	16,526	$343	$18.57	$16.05 - $21.85
Q2 2015	11,207	$189	$18.28	$15.93 - $21.73
Q1 2015	13,601	$261	$18.36	$16.27 - $20.45
Q4 2014	17,983	$312	$15.59	$12.93 - $17.95
Q3 2014	14,344	$187	$14.87	$13.00 - $18.30