ACORN ENERGY INC

CUSIP: 4848107 Class: CS

GROUP ONE TRADING, L.P.'s Holding History (CIK: 0000932540)

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

Q3 2014
Shares 1,400 Value ($000) $2 Avg Close — Range —
Q2 2014
Shares 1,400 Value ($000) $3 Avg Close — Range —
Q1 2014
Shares 11,047 Value ($000) $37 Avg Close — Range —
Q4 2013
Shares 10,447 Value ($000) $43 Avg Close — Range —
Q3 2013
Shares 80 Value ($000) $0 Avg Close — Range —