JANE STREET GROUP, LLC

CIK

1595888

City

NEW YORK

State / Country

Stock

AMKR — Amkor Technology, Inc.

Top Portfolio Positions

3,970 positions · $675,363,467,990 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	19.25%
QQQ	Invesco Qqq Trust, Series 1	72,961,946	$42,112,175,991	6.24%
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	4.82%
GLD	Spdr Gold Trust	75,600,043	$32,529,942,501	4.82%
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	2.24%
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	2.09%
AAPL	Apple Inc. Technology	49,649,392	$12,600,519,193	1.87%

Portfolio Trend

25 quarters · across all stocks

Holdings in AMKR

Compact Export CSV

Shares Held

Position Value (USD)

48 quarters on record

Report Date	Value (USD)	Shares	Change	Type	Discretion	Filed
2026-03-31	$104,911,793	2,329,820	+320.2%	Shares	Defined	2026-05-12
2026-03-31	$24,969,135	554,500	+75.4%	Call	Defined	2026-05-12
2026-03-31	$14,233,983	316,100	-61.4%	Put	Defined	2026-05-12
2025-12-31	$32,298,588	818,100	+1191.5%	Call	Defined	2026-02-12
2025-12-31	$2,500,781	63,343	-95.9%	Shares	Defined	2026-02-12
2025-12-31	$61,355,868	1,554,100	+312.4%	Put	Defined	2026-02-12
2025-09-30	$10,703,448	376,882	+319.7%	Shares	Defined	2025-11-14
2025-09-30	$2,550,320	89,800	-70.7%	Call	Defined	2025-11-14
2025-09-30	$8,707,440	306,600	-77.2%	Put	Defined	2025-11-14
2025-06-30	$28,233,649	1,345,100	+2390.9%	Put	Defined	2025-08-14
2025-06-30	$1,133,460	54,000	-24.7%	Call	Defined	2025-08-14
2025-06-30	$1,504,772	71,690	+20.7%	Shares	Defined	2025-08-14
2025-03-31	$1,072,764	59,400	-97.2%	Call	Defined	2025-05-19
2025-03-31	$37,913,358	2,099,300	+567.6%	Put	Defined	2025-05-19
2025-03-31	$5,679,038	314,454	+315.9%	Shares	Defined	2025-05-19
2024-12-31	$1,942,164	75,600	+12.7%	Call	Defined	2025-02-14
2024-12-31	$1,723,799	67,100	-22.7%	Put	Defined	2025-02-14
2024-09-30	$2,656,080	86,800	-58.9%	Call	Defined	2024-11-15
2024-09-30	$6,459,047	211,080	-59.0%	Shares	Defined	2024-11-15
2024-06-30	$20,580,164	514,247	+143.5%	Shares	Defined	2024-08-15
2024-03-31	$6,809,312	211,207	+19.3%	Shares	Defined	2024-05-16
2023-12-31	$5,890,220	177,043	+1844.2%	Shares	Defined	2024-02-15
2023-09-30	$205,794	9,106	-90.5%	Shares	Defined	2023-11-15
2023-06-30	$2,852,548	95,884	+180.1%	Shares	Defined	2023-08-14
2023-03-31	$890,611	34,228	+26.7%	Shares	Defined	2023-05-16
2022-12-31	$647,651	27,008	+11.3%	Shares	Defined	2023-02-15
2022-09-30	$413,803	24,270	+7.0%	Shares	Defined	2022-11-15
2022-06-30	$384,628	22,692	-65.8%	Shares	Defined	2022-08-16
2022-03-31	$1,440,036	66,300	+13.5%	Call	Defined	2022-05-17
2022-03-31	$1,268,448	58,400	-0.2%	Put	Defined	2022-05-17
2022-03-31	$1,270,923	58,514	+327.1%	Shares	Defined	2022-05-17
2021-12-31	$339,623	13,700	-49.2%	Put	Defined	2022-02-15
2021-12-31	$668,660	26,973	-66.5%	Shares	Defined	2022-02-15
2021-12-31	$1,998,074	80,600	-22.9%	Call	Defined	2022-02-15
2021-09-30	$2,607,275	104,500	+464.9%	Call	Defined	2021-11-16
2021-09-30	$461,575	18,500	-62.9%	Put	Defined	2021-11-16
2021-09-30	$1,242,559	49,802	-56.7%	Shares	Defined	2021-11-16
2021-06-30	$2,719,659	114,899	+76.0%	Shares	Defined	2021-08-16
2021-06-30	$1,545,651	65,300	+78.4%	Call	Defined	2021-08-16
2021-06-30	$866,322	36,600	-31.6%	Put	Defined	2021-08-16
2021-03-31	$1,267,939	53,477	-31.1%	Shares	Defined	2021-05-18
2021-03-31	$1,839,896	77,600	+1.3%	Put	Defined	2021-05-18
2021-03-31	$1,816,186	76,600	+93.9%	Call	Defined	2021-05-18
2020-12-31	$595,660	39,500	+218.5%	Call	Defined	2021-02-17
2020-12-31	$187,022	12,402	-6.8%	Shares	Defined	2021-02-17
2020-09-30	$148,960	13,300	-59.6%	Call	Defined	2020-11-17
2020-09-30	$368,737	32,923	+103.2%	Shares	Defined	2020-11-17
2020-06-30	$199,422	16,200	—	Call	Defined	2020-08-17
No 13F history on record for this holder in this stock.