Skip to main content

Parallax Volatility Advisers, L.P.

Position in CMCSA — Comcast Corp

CIK 1521001 San Francisco, CA

Position in CMCSA

as of Jun 30, 2026 · filed Aug 14, 2026
Position Value
$2,209
-$284,749 QoQ
Shares Held
90
-99.1% QoQ
Ownership
0.000%
of shares outstanding
% of Portfolio
0.00%
of 13F equity value
Holder Rank
#1,834
of 1,877 holders
Holding Since
Mar 2020
23 quarters on record
Voting authority Sole 100% Shared 0% None 0%

Common Shares in CMCSA Over Time

Shares Held

Position Value (USD)

Derivatives in CMCSA

reported options exposure · as of Jun 30, 2026
CallValue
$8,224,250
CallShares
335,000
PutValue
$14,730,000
PutShares
600,000

Notional value of option positions as reported on Form 13F. Calls and puts are disclosed separately and do not net against the common-share stake above.

Position in Telecom Services

Communication Services · as of Jun 30, 2026

Parallax Volatility Advisers, L.P. holds $1,020,422 across 3 Telecom Services names. CMCSA ranks #3 (0.2% of the industry book) .

# Ticker Company Shares Value (USD) Open
3 CMCSA
Comcast Corp
This page
90 $2,209

All Filings in CMCSA

Export CSV
50 filing rows on record
Report Date Value (USD) Shares
2026-06-30 $8,224,250 335,000
2026-06-30 $14,730,000 600,000
2026-06-30 $2,209 90
2025-09-30 $157,099 5,000
2025-09-30 $286,958 9,133
2025-03-31 $184,499 5,000
2025-03-31 $36,346 985
2025-03-31 $7,298,810 197,800
2024-12-31 $10,403,320 277,200
2024-12-31 $1,088 29
2024-12-31 $6,571,506 175,100
2024-09-30 $2,715,047 65,000
2024-09-30 $641,837 15,366
2024-09-30 $6,511,936 155,900
2024-06-30 $12,253,153 312,900
2024-06-30 $6,148,271 157,004
2024-06-30 $10,549,695 269,400
2024-03-31 $1,988,116 45,862
2024-03-31 $8,743,688 201,700
2024-03-31 $26,902,990 620,600
2023-12-31 $26,735,323 609,700
2023-12-31 $19,114,199 435,900
2023-09-30 $13,967,112 315,000
2023-09-30 $282,002 6,360
2023-09-30 $22,600,117 509,700
2023-06-30 $13,794,615 332,000
2023-06-30 $4,919,525 118,400
2023-03-31 $26,072,055 687,736
2023-03-31 $14,746,980 389,000
2023-03-31 $28,622,032 755,000
2022-12-31 $17,387,066 497,200
2022-12-31 $46,502,849 1,329,794
2022-12-31 $41,810,089 1,195,600
2022-09-30 $19,357 660
2022-09-30 $16,498,134 562,500
2022-09-30 $8,555,565 291,700
2022-06-30 $9,833,541 250,600
2022-06-30 $10,002,273 254,900
2022-03-31 $33,494,999 715,400
2022-03-31 $80,226,001 1,713,500
2021-12-31 $43,439,777 863,100
2021-12-31 $128,532,648 2,553,800
2021-09-30 $197,365,798 3,528,800
2021-09-30 $1,964,261 35,120
2021-09-30 $36,516,698 652,900
2021-06-30 $38,277,443 671,300
2021-06-30 $131,636,212 2,308,600
2021-06-30 $12,888,959 226,043
2021-03-31 $130,930,014 2,419,700
2021-03-31 $50,820,123 939,200