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 		$21.6M Buy
20,700
+20,600
+20,600% +$21.7M 0.06% 231
2025
Q4 		$107K Sell
100
-100
-50% -$109K ﹤0.01% 1437
2025
Q3 		$233K Sell
200
-15,200
-99% -$17M ﹤0.01% 1353
2025
Q2 		$16.2M Buy
15,400
+14,800
+2,467% +$14M 0.04% 314
2025
Q1 		$568K Sell
600
-5,500
-90% -$5.39M ﹤0.01% 1160
2024
Q4 		$6.25M Sell
6,100
-24,000
-80% -$24.4M 0.01% 745
2024
Q3 		$28.6M Buy
30,100
+7,600
+34% +$6.58M 0.05% 256
2024
Q2 		$17.7M Buy
22,500
+3,800
+20% +$2.96M 0.04% 320
2024
Q1 		$15.6M Buy
18,700
+7,000
+60% +$5.62M 0.03% 375
2023
Q4 		$9.5M Buy
11,700
+600
+5% +$419K 0.02% 602
2023
Q3 		$7.18M Buy
11,100
+2,700
+32% +$1.89M 0.02% 637
2023
Q2 		$5.81M Sell
8,400
-3,800
-31% -$2.55M 0.01% 723
2023
Q1 		$8.16M Sell
12,200
-52,200
-81% -$36.8M 0.02% 657
2022
Q4 		$45.6M Sell
64,400
-2,900
-4% -$1.94M 0.07% 290
2022
Q3 		$37M Buy
67,300
+56,300
+512% +$36.9M 0.06% 361
2022
Q2 		$6.71M Sell
11,000
-9,300
-46% -$6.06M 0.01% 863
2022
Q1 		$15.5M Buy
+20,300
New +$15.9M 0.01% 602
2020
Q4 		– Sell
-125,400
Closed -$70.7M – 2469
2020
Q3 		$70.7M Buy
125,400
+70,400
+128% +$40.2M 0.05% 308
2020
Q2 		$29.9M Buy
55,000
+24,100
+78% +$12.2M 0.04% 392
2020
Q1 		$13.6M Buy
30,900
+22,800
+281% +$11.2M 0.02% 504
2019
Q4 		$4.07M Buy
8,100
+1,400
+21% +$664K ﹤0.01% 983
2019
Q3 		$2.99M Sell
6,700
-4,700
-41% -$2.09M ﹤0.01% 992
2019
Q2 		$5.35M Buy
11,400
+6,400
+128% +$2.9M 0.01% 706
2019
Q1 		$2.13M Buy
5,000
+200
+4% +$83.9K ﹤0.01% 975
2018
Q4 		$1.89M Buy
4,800
+3,300
+220% +$1.35M ﹤0.01% 1081
2018
Q3 		$706K Buy
+1,500
New +$729K ﹤0.01% 1365
2016
Q4 		– Sell
-2,000
Closed -$725K – 3066
2016
Q3 		$725K Sell
2,000
-11,100
-85% -$4.04M ﹤0.01% 1364
2016
Q2 		$4.49M Buy
13,100
+9,100
+228% +$3.2M 0.01% 660
2016
Q1 		$1.36M Sell
4,000
-8,100
-67% -$2.57M ﹤0.01% 1059
2015
Q4 		$4.12M Buy
12,100
+1,600
+15% +$544K 0.01% 751
2015
Q3 		$3.12M Buy
10,500
+100
+1% +$32.3K 0.01% 829
2015
Q2 		$3.6M Buy
10,400
+10,000
+2,500% +$3.65M 0.01% 840
2015
Q1 		$147K Buy
400
+300
+300% +$109K ﹤0.01% 2270
2014
Q4 		$36K Sell
100
-2,700
-96% -$923K ﹤0.01% 4153
2014
Q3 		$919K Sell
2,800
-4,900
-64% -$1.58M ﹤0.01% 1516
2014
Q2 		$2.46M Sell
7,700
-50,800
-87% -$15.6M 0.01% 703
2014
Q1 		$18.4M Buy
58,500
+52,700
+909% +$16.1M 0.11% 163
2013
Q4 		$1.83M Buy
5,800
+4,900
+544% +$1.46M 0.01% 676
2013
Q3 		$243K Sell
900
-33,500
-97% -$9.1M ﹤0.01% 1031
2013
Q2 		$8.84M Buy
+34,400
New +$9.22M 0.04% 301

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.