JANE STREET GROUP, LLC

CIK

1595888

City

NEW YORK

State / Country

Stock

CCOI — Cogent Communications Holdings, Inc.

Top Portfolio Positions

3,962 positions · $676,020,615,977 total · as of Mar 31, 2026

Ticker	Company	Shares	Value (USD)	% of Portfolio
SPY	Spdr S&P 500 ETF Trust	199,908,899	$130,008,753,375	19.23%
QQQ	Invesco Qqq Trust, Series 1	72,961,946	$42,112,175,991	6.23%
TSLA	Tesla, Inc. Consumer Cyclical	96,307,904	$35,802,463,311	5.30%
NVDA	Nvidia Corp Technology	186,634,816	$32,549,111,909	4.81%
GLD	Spdr Gold Trust	75,600,043	$32,529,942,501	4.81%
META	Meta Platforms, Inc. Communication Services	35,584,342	$20,358,869,587	3.01%
MU	Micron Technology Inc Technology	44,692,337	$15,098,859,131	2.23%
MSFT	Microsoft Corp Technology	39,450,469	$14,603,380,108	2.16%
AMZN	Amazon Com Inc Consumer Cyclical	67,664,445	$14,092,473,959	2.08%
AAPL	Apple Inc. Technology	49,649,392	$12,600,519,193	1.86%

Portfolio Trend

24 quarters · across all stocks

Holdings in CCOI

Compact Export CSV

Shares Held

Position Value (USD)

40 quarters on record

Report Date	Value (USD)	Shares	Change	Type	Discretion	Filed
2026-03-31	$7,641,504	405,600	+46.2%	Call	Defined	2026-05-12
2026-03-31	$5,227,835	277,486	+1450.2%	Shares	Defined	2026-05-12
2026-03-31	$337,236	17,900	+155.7%	Put	Defined	2026-05-12
2025-09-30	$268,450	7,000	-98.4%	Put	Defined	2025-11-14
2025-09-30	$16,677,570	434,878	+4081.5%	Shares	Defined	2025-11-14
2025-09-30	$398,840	10,400	+67.7%	Call	Defined	2025-11-14
2025-06-30	$298,902	6,200	-88.0%	Call	Defined	2025-08-14
2025-06-30	$2,493,998	51,732	-70.4%	Shares	Defined	2025-08-14
2025-03-31	$10,697,490	174,482	+3612.4%	Shares	Defined	2025-05-19
2025-03-31	$288,157	4,700	-76.3%	Call	Defined	2025-05-19
2024-12-31	$1,525,522	19,794	+633.1%	Shares	Defined	2025-02-14
2024-12-31	$208,089	2,700	-96.2%	Put	Defined	2025-02-14
2024-09-30	$5,344,768	70,400	+69.1%	Call	Defined	2024-11-15
2024-09-30	$3,161,308	41,640	-7.1%	Shares	Defined	2024-11-15
2024-09-30	$3,401,216	44,800	-44.0%	Put	Defined	2024-11-15
2024-06-30	$4,511,474	79,934	+158.6%	Shares	Defined	2024-08-15
2024-03-31	$2,019,740	30,916	-59.8%	Shares	Defined	2024-05-16
2023-12-31	$5,856,087	76,993	+102.0%	Shares	Defined	2024-02-15
2023-09-30	$2,359,503	38,118	+279.4%	Shares	Defined	2023-11-15
2023-06-30	$675,994	10,046	+7.4%	Shares	Defined	2023-08-14
2023-03-31	$596,100	9,355	-11.0%	Shares	Defined	2023-05-16
2022-12-31	$600,081	10,513	-31.6%	Shares	Defined	2023-02-15
2022-09-30	$801,177	15,360	+152.8%	Shares	Defined	2022-11-15
2022-06-30	$369,237	6,077	+12.5%	Shares	Defined	2022-08-16
2022-03-31	$358,290	5,400	+3.8%	Call	Defined	2022-05-17
2022-03-31	$345,020	5,200	-11.2%	Put	Defined	2022-05-17
2021-12-31	$428,395	5,854	-19.8%	Shares	Defined	2022-02-15
2021-12-31	$534,214	7,300	-67.7%	Call	Defined	2022-02-15
2021-09-30	$1,600,984	22,600	+222.9%	Call	Defined	2021-11-16
2021-06-30	$538,230	7,000	-68.2%	Put	Defined	2021-08-16
2021-06-30	$1,691,580	22,000	+158.5%	Call	Defined	2021-08-16
2021-06-30	$654,333	8,510	+118.2%	Shares	Defined	2021-08-16
2021-03-31	$268,164	3,900	-76.4%	Put	Defined	2021-05-18
2021-03-31	$1,134,540	16,500	+55.7%	Call	Defined	2021-05-18
2020-12-31	$634,622	10,600	+57.9%	Call	Defined	2021-02-17
2020-12-31	$402,025	6,715	-13.9%	Shares	Defined	2021-02-17
2020-09-30	$468,390	7,800	-2.9%	Put	Defined	2020-11-17
2020-09-30	$482,561	8,036	-9.7%	Shares	Defined	2020-11-17
2020-06-30	$688,504	8,900	+134.2%	Put	Defined	2020-08-17
2020-06-30	$293,968	3,800	—	Call	Defined	2020-08-17
No 13F history on record for this holder in this stock.