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 Buy
+51,200
New +$5.6M ﹤0.01% 897
2020
Q4 		– Sell
-328,400
Closed -$33.8M – 2824
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 $5.72T AUM 30.48% 1-Year Est. Return
VCM
Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM
VPM
Vanguard Portfolio Management Malvern, Pennsylvania $1.91T AUM
State Street
State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return
Baillie Gifford & Co
Baillie Gifford & Co Edinburgh, United Kingdom $97.9B AUM 20.73% 1-Year Est. Return
Invesco
Invesco Atlanta, Georgia $1.02T AUM 30.18% 1-Year Est. Return
AllianceBernstein
AllianceBernstein Nashville, Tennessee $309B AUM 23.92% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.61T AUM 30.72% 1-Year Est. Return
UBS AM
UBS AM Chicago, Illinois $481B AUM 26.39% 1-Year Est. Return
Wellington Management Group
Wellington Management Group Boston, Massachusetts $535B AUM 26.23% 1-Year Est. Return

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

Parallax Volatility Advisers increased its DexCom (DXCM) stake by 360% in Q1 2026, buying an estimated $480K and bringing the position to 8,802 shares worth $551K. The position accounts for ﹤0.01% of the portfolio, ranked #1046.

Parallax Volatility Advisers first reported a position in DXCM in Q1 2017 and has held it in 21 quarters since. The position peaked at $12M in Q3 2020. 957 funds tracked by Wall St. Rank hold DXCM as of Q1 2026.

  • Parallax Volatility Advisers held 8,802 shares of DexCom worth $551K as of Q1 2026.
  • Parallax Volatility Advisers bought 6,888 DexCom shares in Q1 2026, an estimated $480K.
  • DexCom made up ﹤0.01% of Parallax Volatility Advisers's portfolio in Q1 2026, its #1046 holding.
  • Parallax Volatility Advisers first reported a position in DexCom in Q1 2017 and has held it in 21 quarters since.
  • Parallax Volatility Advisers's DexCom position peaked at $12M in Q3 2020.
  • 957 funds tracked by Wall St. Rank held DexCom as of Q1 2026.

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