William Blair & Company’s ProShares UltraShort QQQ QID Stock Holding History

William Blair & Company’s Portfolio QID Stock Details QID Fund Activity

Bought

Maintained

Sold

Quarter	Market Value	Status	Shares	Change in Stake	Trade Value	Portfolio Weight	Portfolio Position
2021 Q1	–	Hold	0	–	–	–	1895
2020 Q4	–	Hold	0	–	–	–	1851
2020 Q3	–	Hold	0	–	–	–	1759
2020 Q2	–	Hold	0	–	–	–	1734
2020 Q1	–	Sell	-1	Closed	–	–	1745
2019 Q4	$0	Hold	1	–	–	﹤0.01%	1785
2019 Q3	$1K	Hold	1	–	–	﹤0.01%	1682
2019 Q2	$1K	Hold	1	–	–	﹤0.01%	1718
2019 Q1	$1K	Hold	1	–	–	﹤0.01%	1694
2018 Q4	$1K	Buy	+1	New	+$851	﹤0.01%	1645
2018 Q2	–	Sell	-1	Closed	-$1K	–	1629
2018 Q1	$1K	Buy	+1	New	+$942	﹤0.01%	1504

Other funds holding QID

SFS

Sowell Financial Services North Little Rock, Arkansas $2.7B AUM 22.62% 1-Year Est. Return

IMC Chicago Chicago, Illinois $278B AUM 44.93% 1-Year Est. Return

TRCT

Tower Research Capital (TRC) New York $3.85B AUM 32.11% 1-Year Est. Return

Susquehanna International Group Bala Cynwyd, Pennsylvania $893B AUM 36.07% 1-Year Est. Return

Citadel Advisors Miami, Florida $618B AUM 30.34% 1-Year Est. Return

ACM

Arlington Capital Management Arlington Heights, Illinois $177M AUM 44.15% 1-Year Est. Return

Jane Street New York $777B AUM 61.18% 1-Year Est. Return

Wolverine Trading Chicago, Illinois $139B AUM 31.83% 1-Year Est. Return

TFA

Toth Financial Advisory Leesburg, Virginia $1.02B AUM 28.36% 1-Year Est. Return

CreativeOne Wealth Overland Park, Kansas $4.31B AUM 19.42% 1-Year Est. Return

William Blair & Company's QID Position: Q1 2021 in Review

William Blair & Company held its ProShares UltraShort QQQ (QID) position steady in Q1 2021 at 0 shares worth $0. The position accounts for ﹤0.01% of the portfolio, ranked #1895.

William Blair & Company first reported a position in QID in Q1 2018 and has held it in 6 quarters since. The position peaked at $1K in Q3 2019. 34 funds tracked by Wall St. Rank hold QID as of Q1 2021.

William Blair & Company held 0 shares of ProShares UltraShort QQQ worth $0 as of Q1 2021.
William Blair & Company left its ProShares UltraShort QQQ share count unchanged in Q1 2021.
ProShares UltraShort QQQ made up ﹤0.01% of William Blair & Company's portfolio in Q1 2021, its #1895 holding.
William Blair & Company first reported a position in ProShares UltraShort QQQ in Q1 2018 and has held it in 6 quarters since.
William Blair & Company's ProShares UltraShort QQQ position peaked at $1K in Q3 2019.
34 funds tracked by Wall St. Rank held ProShares UltraShort QQQ as of Q1 2021.

Based on William Blair & Company's 13F filing for Q1 2021, filed 13 May 2021.