EXPONENT INC

Ticker: EXPO CUSIP: 30214U102 Class: Common Stock

Parallax Volatility Advisers, L.P.'s Holding History (CIK: 0001521001)

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

Q1 2019

Shares 3,600 Value ($000) $208 Avg Close $50.06 Range $43.61 - $54.25

Q2 2018

Shares 2 Value ($000) $0 Avg Close $42.16 Range $35.08 - $48.38

Q4 2017

Shares 3,948 Value ($000) $281 Avg Close $33.56 Range $31.78 - $35.23

Q2 2014

Shares 57 Value ($000) $4 Avg Close $15.58 Range $14.11 - $16.64

Period	Shares	Value ($000)	Average Close	Price Range
Q1 2019	3,600	$208	$50.06	$43.61 - $54.25
Q2 2018	2	$0	$42.16	$35.08 - $48.38
Q4 2017	3,948	$281	$33.56	$31.78 - $35.23
Q2 2014	57	$4	$15.58	$14.11 - $16.64