Parallax Volatility Advisers’s Antero Midstream AM Stock Holding History

Parallax Volatility Advisers’s Portfolio AM Stock Details AM Fund Activity

Bought

Maintained

Sold

Quarter	Market Value	Status	Shares	Change in Stake	Trade Value	Portfolio Weight	Portfolio Position
2026 Q2	$424K	Buy	18,634 +2,557	+16%	+$55.5K	﹤0.01%	1144
2026 Q1	$331K	Buy	+16,077	New	+$332K	﹤0.01%	1111
2019 Q3	–	Sell	-39,728	Closed	-$455K	–	2280
2019 Q2	$455K	Buy	+39,728	New	+$509K	﹤0.01%	1536
2019 Q1	–	Sell	-1,159	Closed	-$13K	–	2722
2018 Q4	$13K	Buy	+1,159	New	+$17.7K	﹤0.01%	2462
2018 Q2	–	Sell	-31	Closed	-$550	–	2062
2018 Q1	$0	Sell	31 -17,864	-100%	-$346K	﹤0.01%	2192
2017 Q4	$353K	Buy	+17,895	New	+$333K	﹤0.01%	1798

Other funds holding AM

BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return

Invesco Atlanta, Georgia $1.26T AUM 61.52% 1-Year Est. Return

Vanguard Portfolio Management Malvern, Pennsylvania $2.22T AUM

Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM

State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return

Geode Capital Management Boston, Massachusetts $1.88T AUM 44.46% 1-Year Est. Return

TCA

Tortoise Capital Advisors Overland Park, Kansas $9.84B AUM 26.47% 1-Year Est. Return

Dimensional Fund Advisors Austin, Texas $552B AUM 44.19% 1-Year Est. Return

Neuberger Berman Group New York $150B AUM 40.08% 1-Year Est. Return

Bank of New York Mellon New York $609B AUM 40.19% 1-Year Est. Return

Parallax Volatility Advisers's AM Position: Q2 2026 in Review

Parallax Volatility Advisers increased its Antero Midstream (AM) stake by 16% in Q2 2026, buying an estimated $55.5K and bringing the position to 18,634 shares worth $424K. The position accounts for ﹤0.01% of the portfolio, ranked #1144.

Parallax Volatility Advisers first reported a position in AM in Q4 2017 and has held it in 6 quarters since. The position peaked at $455K in Q2 2019. 533 funds tracked by Wall St. Rank hold AM as of Q2 2026.

Parallax Volatility Advisers held 18,634 shares of Antero Midstream worth $424K as of Q2 2026.
Parallax Volatility Advisers bought 2,557 Antero Midstream shares in Q2 2026, an estimated $55.5K.
Antero Midstream made up ﹤0.01% of Parallax Volatility Advisers's portfolio in Q2 2026, its #1144 holding.
Parallax Volatility Advisers first reported a position in Antero Midstream in Q4 2017 and has held it in 6 quarters since.
Parallax Volatility Advisers's Antero Midstream position peaked at $455K in Q2 2019.
533 funds tracked by Wall St. Rank held Antero Midstream as of Q2 2026.

Based on Parallax Volatility Advisers's 13F filing for Q2 2026, filed 14 Aug 2026.