Parallax Volatility Advisers
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Parallax Volatility Advisers’s DexCom DXCM Stock Holding History

Parallax Volatility Advisers’s Portfolio DXCM Stock Details DXCM Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q1 		– Sell
-42,500
Closed -$2.82M – 1580
2025
Q4 		$2.82M Buy
+42,500
New +$2.75M 0.01% 846
2025
Q1 		– Sell
-69,200
Closed -$5.38M – 1714
2024
Q4 		$5.38M Buy
69,200
+69,100
+69,100% +$5.12M 0.01% 798
2024
Q3 		$6.7K Buy
+100
New +$8.21K ﹤0.01% 1942
2024
Q2 		– Sell
-1,500
Closed -$208K – 2067
2024
Q1 		$208K Sell
1,500
-33,600
-96% -$4.22M ﹤0.01% 1550
2023
Q4 		$4.36M Buy
35,100
+16,300
+87% +$1.67M 0.01% 874
2023
Q3 		$1.75M Sell
18,800
-30,900
-62% -$3.48M ﹤0.01% 1139
2023
Q2 		$6.39M Sell
49,700
-395,600
-89% -$47.8M 0.01% 682
2023
Q1 		$51.7M Buy
445,300
+320,800
+258% +$35.9M 0.11% 185
2022
Q4 		$14.1M Buy
124,500
+42,300
+51% +$4.64M 0.02% 657
2022
Q3 		$6.62M Sell
82,200
-191,400
-70% -$16.2M 0.01% 903
2022
Q2 		$20.4M Buy
273,600
+222,400
+434% +$20.3M 0.02% 481
2022
Q1 		$6.55M Sell
51,200
-24,000
-32% -$2.63M ﹤0.01% 897
2021
Q4 		$10.1M Sell
75,200
-4,400
-6% -$632K 0.01% 886
2021
Q3 		$10.9M Buy
79,600
+44,000
+124% +$5.55M 0.01% 910
2021
Q2 		$3.8M Sell
35,600
-64,800
-65% -$6.22M ﹤0.01% 1360
2021
Q1 		$9.03M Sell
100,400
-100,800
-50% -$9.46M 0.01% 996
2020
Q4 		$18.6M Sell
201,200
-127,200
-39% -$11.4M 0.01% 792
2020
Q3 		$33.8M Buy
328,400
+172,800
+111% +$18.1M 0.03% 533
2020
Q2 		$15.8M Buy
155,600
+136,000
+694% +$12.2M 0.02% 600
2020
Q1 		$1.32M Buy
+19,600
New +$1.22M ﹤0.01% 1383
2016
Q2 		– Sell
-124,800
Closed -$2.12M – 2671
2016
Q1 		$2.12M Buy
+124,800
New +$2.08M ﹤0.01% 888

Other funds holding DXCM

BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
Vanguard Capital Management
Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM
Vanguard Portfolio Management
Vanguard Portfolio Management Malvern, Pennsylvania $2.22T AUM
State Street
State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return
Invesco
Invesco Atlanta, Georgia $1.26T AUM 61.52% 1-Year Est. Return
Baillie Gifford & Co
Baillie Gifford & Co Edinburgh, United Kingdom $110B AUM 4.8% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.88T AUM 44.46% 1-Year Est. Return
UBS AM
UBS AM Chicago, Illinois $550B AUM 43.33% 1-Year Est. Return
AllianceBernstein
AllianceBernstein Nashville, Tennessee $302B AUM 26.44% 1-Year Est. Return
Wellington Management Group
Wellington Management Group Boston, Massachusetts $580B AUM 38.23% 1-Year Est. Return

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

Parallax Volatility Advisers reduced its DexCom (DXCM) stake by 61% in Q2 2026, selling an estimated $358K and leaving 3,435 shares worth $231K. The position accounts for ﹤0.01% of the portfolio, ranked #1219.

Parallax Volatility Advisers first reported a position in DXCM in Q1 2017 and has held it in 27 quarters since. The position peaked at $29.8M in Q1 2021. 974 funds tracked by Wall St. Rank hold DXCM as of Q2 2026.

  • Parallax Volatility Advisers held 3,435 shares of DexCom worth $231K as of Q2 2026.
  • Parallax Volatility Advisers sold 5,367 DexCom shares in Q2 2026, an estimated $358K.
  • DexCom made up ﹤0.01% of Parallax Volatility Advisers's portfolio in Q2 2026, its #1219 holding.
  • Parallax Volatility Advisers first reported a position in DexCom in Q1 2017 and has held it in 27 quarters since.
  • Parallax Volatility Advisers's DexCom position peaked at $29.8M in Q1 2021.
  • 974 funds tracked by Wall St. Rank held DexCom as of Q2 2026.

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