NATIONAL OILWELL VARCO INC

CUSIP: 637071101 Class: COM

Parallax Volatility Advisers, L.P.'s Holding History (CIK: 0001521001)

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

Q4 2020
Shares 16,712 Value ($000) $229 Avg Close Range
Q3 2020
Shares 38,260 Value ($000) $347 Avg Close Range
Q2 2020
Shares 40,601 Value ($000) $497 Avg Close Range
Q1 2020
Shares 42,055 Value ($000) $413 Avg Close Range
Q4 2019
Shares 23,535 Value ($000) $590 Avg Close Range
Q3 2019
Shares 18,320 Value ($000) $388 Avg Close Range
Q2 2019
Shares 8,459 Value ($000) $188 Avg Close Range
Q1 2019
Shares 18,730 Value ($000) $499 Avg Close Range
Q3 2018
Shares 15 Value ($000) $1 Avg Close Range
Q2 2018
Shares 60 Value ($000) $3 Avg Close Range
Q1 2018
Shares 1,617 Value ($000) $60 Avg Close Range
Q4 2017
Shares 10,283 Value ($000) $370 Avg Close Range
Q3 2017
Shares 1,684 Value ($000) $60 Avg Close Range
Q2 2017
Shares 890 Value ($000) $29 Avg Close Range
Q1 2017
Shares 1,479 Value ($000) $59 Avg Close Range
Q4 2016
Shares 101,792 Value ($000) $3,811 Avg Close Range
Q3 2016
Shares 61,407 Value ($000) $2,256 Avg Close Range
Q2 2016
Shares 44,930 Value ($000) $1,512 Avg Close Range
Q1 2016
Shares 24,893 Value ($000) $774 Avg Close Range
Q4 2015
Shares 35,005 Value ($000) $1,172 Avg Close Range
Q3 2015
Shares 40,826 Value ($000) $1,537 Avg Close Range
Q2 2015
Shares 191,831 Value ($000) $9,262 Avg Close Range
Q1 2015
Shares 53,190 Value ($000) $2,659 Avg Close Range
Q4 2014
Shares 35,140 Value ($000) $2,303 Avg Close Range
Q3 2014
Shares 6,450 Value ($000) $491 Avg Close Range
Q1 2014
Shares 78,671 Value ($000) $6,126 Avg Close Range
Q2 2013
Shares 6,129 Value ($000) $422 Avg Close Range