William Blair & Company’s ProShares UltraPro S&P 500 UPRO Stock Holding History

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

Bought

Maintained

Sold

Quarter	Market Value	Status	Shares	Change in Stake	Trade Value	Portfolio Weight	Portfolio Position
2026 Q2	$142K	Hold	1,000	–	–	﹤0.01%	1629
2026 Q1	$97K	Sell	1,000 -200	-17%	-$22.6K	﹤0.01%	1593
2025 Q4	$139K	Sell	1,200 -322	-21%	-$36.8K	﹤0.01%	1522
2025 Q3	$170K	Hold	1,522	–	–	﹤0.01%	1490
2025 Q2	$139K	Hold	1,522	–	–	﹤0.01%	1473
2025 Q1	$112K	Hold	1,522	–	–	﹤0.01%	1484
2024 Q4	$135K	Buy	+1,522	New	+$139K	﹤0.01%	1501
2024 Q1	–	Sell	-9	Closed	-$510	–	1852
2023 Q4	$510	Hold	9	–	–	﹤0.01%	1777
2023 Q3	$383	Hold	9	–	–	﹤0.01%	1781
2023 Q2	$440	Sell	9 -9	-50%	-$367	﹤0.01%	1799
2023 Q1	$706	Hold	18	–	–	﹤0.01%	1792
2022 Q4	$600	Hold	18	–	–	﹤0.01%	1804
2022 Q3	$1K	Hold	18	–	–	﹤0.01%	1813
2022 Q2	$1K	Hold	18	–	–	﹤0.01%	1855
2022 Q1	$1K	Buy	+18	New	+$1.12K	﹤0.01%	1903
2021 Q2	–	Sell	-250	Closed	-$11K	–	1934
2021 Q1	$11K	Hold	250	–	–	﹤0.01%	1781
2020 Q4	$10K	Hold	250	–	–	﹤0.01%	1746
2020 Q3	$7K	Hold	250	–	–	﹤0.01%	1653
2020 Q2	$6K	Hold	250	–	–	﹤0.01%	1619
2020 Q1	$3K	Buy	+250	New	+$7.46K	﹤0.01%	1615

Other funds holding UPRO

RAM

Revere Asset Management Dallas, Texas $261M AUM 104.77% 1-Year Est. Return

HRT Financial New York $54.8B AUM 81.03% 1-Year Est. Return

RCM

Ridgepath Capital Management Knoxville, Tennessee $227M AUM 13.85% 1-Year Est. Return

AWM

Axxcess Wealth Management Carlsbad, California $6.28B AUM 24.26% 1-Year Est. Return

SFA

Spectrum Financial Alliance Nicholasville, Kentucky $679M AUM 83.74% 1-Year Est. Return

Millennium Management New York $276B AUM 44.8% 1-Year Est. Return

MSG

Main Street Group Glen Allen, Virginia $429M AUM 34.03% 1-Year Est. Return

Diversified Trust Memphis, Tennessee $6.24B AUM 28.78% 1-Year Est. Return

GTS Securities Miami, Florida $4.75B AUM 41.97% 1-Year Est. Return

PNC Financial Services Group Pittsburgh, Pennsylvania $202B AUM 37.79% 1-Year Est. Return

William Blair & Company's UPRO Position: Q2 2026 in Review

William Blair & Company held its ProShares UltraPro S&P 500 (UPRO) position steady in Q2 2026 at 1,000 shares worth $142K. The position accounts for ﹤0.01% of the portfolio, ranked #1629.

William Blair & Company first reported a position in UPRO in Q1 2020 and has held it in 20 quarters since. The position peaked at $170K in Q3 2025. 140 funds tracked by Wall St. Rank hold UPRO as of Q2 2026.

William Blair & Company held 1,000 shares of ProShares UltraPro S&P 500 worth $142K as of Q2 2026.
William Blair & Company left its ProShares UltraPro S&P 500 share count unchanged in Q2 2026.
ProShares UltraPro S&P 500 made up ﹤0.01% of William Blair & Company's portfolio in Q2 2026, its #1629 holding.
William Blair & Company first reported a position in ProShares UltraPro S&P 500 in Q1 2020 and has held it in 20 quarters since.
William Blair & Company's ProShares UltraPro S&P 500 position peaked at $170K in Q3 2025.
140 funds tracked by Wall St. Rank held ProShares UltraPro S&P 500 as of Q2 2026.

Based on William Blair & Company's 13F filing for Q2 2026, filed 11 Aug 2026.