NATIONAL OILWELL VARCO INC

CUSIP: 637071101 Class: COM

LEUTHOLD GROUP, LLC's Holding History (CIK: 0001170152)

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

Q3 2013
Shares 16,550 Value ($000) $1,293 Avg Close — Range —
Q2 2013
Shares 18,543 Value ($000) $1,278 Avg Close — Range —