INTERACTIVE BROKERS GROUP IN

Ticker: IBKR CUSIP: 45841N107 Class: EQTY

HighVista Strategies LLC's Holding History (CIK: 0001335325)

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

Q4 2017

Shares 42,300 Value ($000) $2,505 Avg Close $12.95 Range $10.63 - $14.82

Q1 2016

Shares 86,788 Value ($000) $3,413 Avg Close $8.23 Range $6.87 - $10.05

Q4 2015

Shares 54,829 Value ($000) $2,391 Avg Close $9.71 Range $8.53 - $10.45

Q3 2015

Shares 102,541 Value ($000) $4,047 Avg Close $9.55 Range $8.25 - $10.65

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2017	42,300	$2,505	$12.95	$10.63 - $14.82
Q1 2016	86,788	$3,413	$8.23	$6.87 - $10.05
Q4 2015	54,829	$2,391	$9.71	$8.53 - $10.45
Q3 2015	102,541	$4,047	$9.55	$8.25 - $10.65