CITADEL ADVISORS LLC

CIK

1423053

City

MIAMI

State / Country

Stock

NPKI — NPK International Inc.

Top Portfolio Positions

4,277 positions · $548,325,010,314 total · as of Mar 31, 2026

Ticker	Company	Shares	Value (USD)	% of Portfolio
SPY	Spdr S&P 500 ETF Trust	64,565,975	$41,989,836,181	7.66%
QQQ	Invesco Qqq Trust, Series 1	55,171,964	$31,844,154,181	5.81%
NVDA	Nvidia Corp Technology	137,243,161	$23,935,207,278	4.37%
TSLA	Tesla, Inc. Consumer Cyclical	63,922,509	$23,763,192,720	4.33%
GLD	Spdr Gold Trust	34,441,722	$14,819,928,559	2.70%
AAPL	Apple Inc. Technology	55,393,070	$14,058,207,235	2.56%
META	Meta Platforms, Inc. Communication Services	23,967,037	$13,712,260,878	2.50%
MSFT	Microsoft Corp Technology	32,176,424	$11,910,746,871	2.17%
AMZN	Amazon Com Inc Consumer Cyclical	51,582,437	$10,743,074,153	1.96%
MU	Micron Technology Inc Technology	31,629,772	$10,685,802,171	1.95%

Portfolio Trend

25 quarters · across all stocks

Holdings in NPKI

Compact Export CSV

Shares Held

Position Value (USD)

50 quarters on record

Report Date	Value (USD)	Shares	Change	Type	Discretion	Filed
2026-03-31	$864,893	59,689	-75.3%	Shares	Defined	2026-05-15
2025-12-31	$2,880,348	241,640	+1864.6%	Shares	Defined	2026-02-17
2025-12-31	$146,616	12,300	-5.4%	Call	Defined	2026-02-17
2025-09-30	$147,030	13,000	-97.5%	Call	Defined	2025-11-14
2025-09-30	$5,922,808	523,679	-24.3%	Shares	Defined	2025-11-14
2025-06-30	$5,887,634	691,849	+115208.2%	Shares	Defined	2025-08-14
2025-03-31	$3,486	600	-99.9%	Call	Defined	2025-05-15
2025-03-31	$2,722,635	468,612	+3177.0%	Shares	Defined	2025-05-15
2024-12-31	$109,681	14,300	-95.9%	Call	Defined	2025-02-14
2024-12-31	$2,703,698	352,503	+43962.9%	Shares	Defined	2025-02-14
2024-12-31	$6,136	800	-68.0%	Put	Defined	2025-02-14
2024-09-30	$17,325	2,500	-98.6%	Call	Defined	2024-11-14
2024-09-30	$1,196,221	172,615	+2331.2%	Shares	Defined	2024-11-14
2024-09-30	$49,203	7,100	-84.1%	Put	Defined	2024-11-14
2024-06-30	$371,731	44,733	+351.8%	Shares	Defined	2024-08-14
2024-06-30	$82,269	9,900	+9800.0%	Call	Defined	2024-08-14
2024-06-30	$831	100	-98.4%	Put	Defined	2024-08-14
2024-03-31	$44,764	6,200	+226.3%	Put	Defined	2024-05-15
2024-03-31	$13,718	1,900	-99.0%	Call	Defined	2024-05-15
2024-03-31	$1,359,886	188,350	+503.7%	Shares	Defined	2024-05-15
2023-12-31	$207,168	31,200	-93.2%	Put	Defined	2024-02-14
2023-12-31	$3,049,446	459,254	+8565.2%	Shares	Defined	2024-02-14
2023-12-31	$35,192	5,300	-98.5%	Call	Defined	2024-02-14
2023-09-30	$2,456,345	355,477	+22117.3%	Shares	Defined	2023-11-14
2023-09-30	$11,056	1,600	-96.8%	Put	Defined	2023-11-14
2023-09-30	$347,573	50,300	-39.8%	Call	Defined	2023-11-14
2023-06-30	$436,678	83,495	+3.1%	Shares	Defined	2023-08-14
2023-06-30	$423,630	81,000	+20150.0%	Call	Defined	2023-08-14
2023-06-30	$2,092	400	-98.8%	Put	Defined	2023-08-14
2023-03-31	$124,355	32,300	-42.3%	Call	Defined	2023-05-15
2023-03-31	$215,414	55,952	-90.5%	Shares	Defined	2023-05-15
2022-12-31	$2,439,706	587,881	+5663.5%	Shares	Defined	2023-02-14
2022-12-31	$42,330	10,200	-42.3%	Call	Defined	2023-02-14
2022-09-30	$44,581	17,691	-54.7%	Shares	Defined	2022-11-14
2022-06-30	$120,754	39,079	+14.6%	Shares	Defined	2022-08-15
2022-06-30	$105,369	34,100	+6.2%	Call	Defined	2022-08-15
2022-03-31	$117,540	32,115	-0.3%	Shares	Defined	2022-05-16
2022-03-31	$117,852	32,200	-14.6%	Call	Defined	2022-05-16
2021-12-31	$110,838	37,700	-28.0%	Put	Defined	2022-02-14
2021-12-31	$153,900	52,347	+40.3%	Shares	Defined	2022-02-14
2021-12-31	$109,662	37,300	+1.1%	Call	Defined	2022-02-14
2021-09-30	$121,770	36,900	-28.8%	Call	Defined	2021-11-15
2021-09-30	$170,940	51,800	-39.7%	Put	Defined	2021-11-15
2021-09-30	$283,687	85,966	+267.4%	Shares	Defined	2021-11-15
2021-06-30	$80,964	23,400	-54.6%	Put	Defined	2021-08-16
2021-06-30	$178,442	51,573	+20.8%	Shares	Defined	2021-08-16
2021-06-30	$147,742	42,700	+97.7%	Call	Defined	2021-08-16
2020-12-31	$41,472	21,600	-47.6%	Put	Defined	2021-02-16
2020-12-31	$79,104	41,200	+38.5%	Call	Defined	2021-02-16
2020-12-31	$57,118	29,749	—	Shares	Defined	2021-02-16
No 13F history on record for this holder in this stock.