NATIONAL INSTRS CORP

CUSIP: 636518102 Class: Common Stock

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

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

Q3 2023
Shares 11,400 Value ($000) $680 Avg Close — Range —
Q2 2022
Shares 7,980 Value ($000) $249 Avg Close — Range —
Q3 2021
Shares 2,600 Value ($000) $102 Avg Close — Range —
Q2 2021
Shares 900 Value ($000) $38 Avg Close — Range —
Q3 2020
Shares 480 Value ($000) $17 Avg Close — Range —
Q1 2020
Shares 615 Value ($000) $20 Avg Close — Range —
Q1 2019
Shares 2,568 Value ($000) $114 Avg Close — Range —
Q4 2018
Shares 4,117 Value ($000) $187 Avg Close — Range —
Q3 2018
Shares 405 Value ($000) $20 Avg Close — Range —
Q2 2018
Shares 4,894 Value ($000) $205 Avg Close — Range —
Q4 2017
Shares 1,293 Value ($000) $54 Avg Close — Range —
Q1 2017
Shares 914 Value ($000) $30 Avg Close — Range —