ARKANSAS BEST CORP DEL

CUSIP: 040790107 Class: COM

Aperio Group, LLC's Holding History (CIK: 0001364615)

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

Q1 2014
Shares 6,156 Value ($000) $227 Avg Close — Range —
Q4 2013
Shares 6,074 Value ($000) $205 Avg Close — Range —