NATIONAL OILWELL VARCO INC

CUSIP: 637071101 Class: COM

DRW Securities, LLC's Holding History (CIK: 0001481986)

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

Q4 2013
Shares 18,815 Value ($000) $1,496 Avg Close — Range —
Q3 2013
Shares 17,400 Value ($000) $1,443 Avg Close — Range —
Q2 2013
Shares 33,200 Value ($000) $2,287 Avg Close — Range —