INTERACTIVE BROKERS GROUP IN

Ticker: IBKR CUSIP: 45841N107 Class: EQTY

Gruss & Co., LLC's Holding History (CIK: 0001103738)

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

Q4 2020

Shares 15,000 Value ($000) $914 Avg Close $12.87 Range $11.33 - $15.30

Q3 2020

Shares 15,000 Value ($000) $725 Avg Close $12.09 Range $9.98 - $13.03

Q2 2020

Shares 15,000 Value ($000) $627 Avg Close $10.11 Range $8.76 - $11.44

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2020	15,000	$914	$12.87	$11.33 - $15.30
Q3 2020	15,000	$725	$12.09	$9.98 - $13.03
Q2 2020	15,000	$627	$10.11	$8.76 - $11.44