Parallax Volatility Advisers
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Parallax Volatility Advisers’s Blackrock BLK Stock Holding History

Parallax Volatility Advisers’s Portfolio BLK Stock Details BLK Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q1 		$1.77M Sell
1,700
-6,500
-79% -$6.84M ﹤0.01% 821
2025
Q4 		$8.78M Buy
8,200
+7,400
+925% +$8.09M 0.02% 507
2025
Q3 		$933K Sell
800
-58,200
-99% -$65.1M ﹤0.01% 1125
2025
Q2 		$61.9M Buy
59,000
+50,300
+578% +$47.6M 0.14% 109
2025
Q1 		$8.23M Sell
8,700
-4,500
-34% -$4.41M 0.02% 489
2024
Q4 		$13.5M Sell
13,200
-8,900
-40% -$9.03M 0.03% 467
2024
Q3 		$21M Sell
22,100
-5,800
-21% -$5.02M 0.04% 326
2024
Q2 		$22M Sell
27,900
-5,000
-15% -$3.9M 0.05% 282
2024
Q1 		$27.4M Buy
32,900
+16,300
+98% +$13.1M 0.06% 244
2023
Q4 		$13.5M Buy
16,600
+3,600
+28% +$2.51M 0.03% 507
2023
Q3 		$8.4M Buy
13,000
+5,400
+71% +$3.77M 0.02% 585
2023
Q2 		$5.25M Sell
7,600
-31,900
-81% -$21.4M 0.01% 757
2023
Q1 		$26.4M Sell
39,500
-3,800
-9% -$2.68M 0.05% 316
2022
Q4 		$30.7M Sell
43,300
-24,200
-36% -$16.2M 0.05% 394
2022
Q3 		$37.1M Buy
67,500
+36,100
+115% +$23.6M 0.06% 358
2022
Q2 		$19.1M Sell
31,400
-20,500
-39% -$13.3M 0.02% 498
2022
Q1 		$39.7M Buy
+51,900
New +$40.5M 0.02% 325
2020
Q4 		– Sell
-355,800
Closed -$201M – 2471
2020
Q3 		$201M Buy
355,800
+47,600
+15% +$27.2M 0.15% 115
2020
Q2 		$168M Buy
308,200
+28,200
+10% +$14.2M 0.2% 75
2020
Q1 		$123M Buy
280,000
+244,800
+695% +$121M 0.16% 83
2019
Q4 		$17.7M Buy
35,200
+10,600
+43% +$5.03M 0.02% 459
2019
Q3 		$11M Buy
24,600
+15,500
+170% +$6.9M 0.01% 559
2019
Q2 		$4.27M Buy
9,100
+6,600
+264% +$2.99M ﹤0.01% 788
2019
Q1 		$1.07M Sell
2,500
-9,000
-78% -$3.78M ﹤0.01% 1254
2018
Q4 		$4.52M Buy
11,500
+900
+8% +$369K 0.01% 746
2018
Q3 		$5M Buy
+10,600
New +$5.15M 0.01% 713
2017
Q1 		– Sell
-7,000
Closed -$2.66M – 3565
2016
Q4 		$2.66M Sell
7,000
-2,000
-22% -$733K 0.01% 845
2016
Q3 		$3.26M Sell
9,000
-32,800
-78% -$11.9M 0.01% 836
2016
Q2 		$14.3M Buy
41,800
+39,700
+1,890% +$14M 0.03% 354
2016
Q1 		$714K Sell
2,100
-9,800
-82% -$3.11M ﹤0.01% 1315
2015
Q4 		$4.05M Buy
11,900
+1,800
+18% +$612K 0.01% 758
2015
Q3 		$3M Buy
10,100
+300
+3% +$96.8K 0.01% 844
2015
Q2 		$3.39M Sell
9,800
-2,200
-18% -$802K 0.01% 866
2015
Q1 		$4.39M Buy
12,000
+1,800
+18% +$652K 0.01% 769
2014
Q4 		$3.65M Sell
10,200
-3,500
-26% -$1.2M 0.01% 824
2014
Q3 		$4.5M Sell
13,700
-12,600
-48% -$4.06M 0.01% 761
2014
Q2 		$8.41M Sell
26,300
-54,800
-68% -$16.8M 0.03% 361
2014
Q1 		$25.5M Buy
81,100
+61,000
+303% +$18.6M 0.15% 134
2013
Q4 		$6.36M Buy
20,100
+1,100
+6% +$328K 0.03% 382
2013
Q3 		$5.14M Sell
19,000
-73,200
-79% -$19.9M 0.03% 363
2013
Q2 		$23.7M Buy
+92,200
New +$24.7M 0.11% 154

Other funds holding BLK

BlackRock
BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return
VCM
Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM
State Street
State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return
Temasek Holdings
Temasek Holdings Singapore $30.5B AUM 13.98% 1-Year Est. Return
Bank of America
Bank of America Charlotte, North Carolina $1.37T AUM 24.88% 1-Year Est. Return
Capital Research Global Investors
Capital Research Global Investors Los Angeles, California $645B AUM 30.41% 1-Year Est. Return
Wellington Management Group
Wellington Management Group Boston, Massachusetts $535B AUM 26.23% 1-Year Est. Return
VPM
Vanguard Portfolio Management Malvern, Pennsylvania $1.91T AUM
Morgan Stanley
Morgan Stanley New York $1.66T AUM 25.57% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.61T AUM 30.72% 1-Year Est. Return

Parallax Volatility Advisers's BLK Position: Q1 2026 in Review

Parallax Volatility Advisers sold out of Blackrock (BLK) in Q1 2026, closing a stake of 6,652 shares — an estimated $7M sold.

Parallax Volatility Advisers first reported a position in BLK in Q3 2013 and held it in 35 quarters. The position peaked at $28.1M in Q1 2020. 2,322 funds tracked by Wall St. Rank hold BLK as of Q1 2026.

  • Parallax Volatility Advisers reported no remaining Blackrock position as of Q1 2026 after selling out during the quarter.
  • Parallax Volatility Advisers sold 6,652 Blackrock shares in Q1 2026, an estimated $7M.
  • Parallax Volatility Advisers first reported a position in Blackrock in Q3 2013 and held it in 35 quarters.
  • Parallax Volatility Advisers's Blackrock position peaked at $28.1M in Q1 2020.
  • 2,322 funds tracked by Wall St. Rank held Blackrock as of Q1 2026.

Based on Parallax Volatility Advisers's 13F filing for Q1 2026, filed 15 May 2026.