RIO ALTO MNG LTD NEW

CUSIP: 76689T104 Class: COM

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

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

Q1 2015
Shares 2,800 Value ($000) $7 Avg Close — Range —
Q2 2014
Shares 1,900 Value ($000) $4 Avg Close — Range —