CenterStar Asset Management, LLC

CIK

1722053

Location

CHICAGO, IL

Portfolio Value

Small $421,176,757

Diversification

Diversified

Filing Date

Global Rank

#3,492 / 8,827 ▲ 4576 · as of Jun 2026

Top Industry

Semiconductors 22.3%

Period ended 38 days ago

Filed Oct 9, 2026 · 29d

27 quarters · since Mar 2020

Regulatory profile

From Form ADV, the SEC filer profile, 13D/13G type codes and N-CEN, never from the name.

Holder type

Unknown

Portfolio style

Measured from the filed 13F common-share book for Jun 30, 2026, the newest measured quarter, never from the firm's own description.

Style

Concentrated

The top 10 positions are 79.8% of the book (60%+)

Turnover

High turnover

201.2% over the last four quarters (100%+)

Horizon

Medium horizon

Value-weighted holding period 7.9 quarters (4 to under 12)

Closest benchmark: the Nasdaq-100 as of 2026-06-30, active share 78.5%; sector active share 46.2% against the combined 13F book's sector weights.

Over time 26 measured quarters

How the bands are measured

Style bands measure the filed 13F common-share book each closed quarter, tested in this order. Unknown: under $10,000,000 of valued equity or 5 stocks. Index-like (100+ stocks): active share of 20% or less against the closest benchmark, which is the S&P 500, S&P MidCap 400, S&P SmallCap 600, Russell 1000, Russell 2000, Nasdaq-100 or Dow Jones Industrial Average (weighted by an index-tracking fund's reported holdings or the index's constituents nearest the quarter end, over the names resolved to companies, and only when those are 90%+ of its weight) or every 13F filer's combined book, or index series holding 80%+ of the registered fund assets it advises (N-CEN) and equal to 50%+ of its book. Systematic-like: 500+ stocks, 100%+ annual turnover and a top 10 weight of 25% or less. Concentrated: a top 10 weight of 60%+ or 12 or fewer effective positions. Diversified active: none of these. Turnover is the smaller of buys and sells over average equity value, summed over four quarters: low under 30%, high 100%+. Horizon is the value-weighted number of quarters each position has been held: short under 4, long 12+.

Clone Performance

Build a hypothetical price-return history from this filer's public 13F holdings.

View clone backtest

Portfolio Concentration

118 tracked positions · as of Sep 30, 2026 · Δ vs Jun 30, 2026

Top Position

30.0%

−8.9 pts

Top 5

48.3%

−1.7 pts

Top 10

59.1%

−0.9 pts

HHI

1,051

Diversified−544

Portfolio Trend

27 quarters · across all stocks

Sector Breakdown

As of Sep 30, 2026

Sector	% Portfolio	Value	Positions
Unclassified	40.5%	$170,646,591	16
Technology	34.5%	$145,397,450	43
Consumer Cyclical	8.8%	$37,190,303	11
Communication Services	5.2%	$21,876,307	7
Industrials	3.5%	$14,594,546	11
Financial Services	3.1%	$12,937,884	14
Consumer Defensive	1.7%	$7,110,606	1
Healthcare	1.1%	$4,841,804	6
Basic Materials	0.7%	$2,939,409	4
Utilities	0.4%	$1,738,395	2
Energy	0.4%	$1,565,243	2
Real Estate	0.1%	$338,219	1

Last Quarter's Activity

Export CSV

Sep 30, 2026 vs Jun 30, 2026

Added To

Positions the filer increased

8 positions

Ticker	Company	Δ Shares	Shares	Value
NBIS	Nebius Group N.V.	+11,447	19,147	$4,516,394
NVDA	Nvidia Corp	+9,392	34,698	$7,924,329
PTLO	Portillo's Inc.	+4,982	34,000	$120,020
TSLA	Tesla, Inc.	+4,366	16,694	$5,923,198
BA	Boeing Co	+3,258	7,746	$1,441,143
AAPL	Apple Inc.	+1,088	6,510	$2,167,960
USO	United States Oil Fund, LP	+670	8,370	$1,219,174
GOOGL	Alphabet Inc.	+553	1,199	$412,551
No positions match the current search.

Trimmed

Positions the filer reduced

7 positions

Ticker	Company	Δ Shares	Shares	Value
META	Meta Platforms, Inc.	−6,529	2,358	$1,709,974
TSM	Taiwan Semiconductor Manufacturing Co Ltd	−3,345	2,218	$1,011,829
ROKU	Roku, Inc	−2,300	3,200	$487,296
CIEN	Ciena Corp	−1,690	2,200	$774,004
AMD	Advanced Micro Devices Inc	−893	677	$414,161
AVGO	Broadcom Inc.	−407	1,642	$576,653
PAYO	Payoneer Global Inc.	−396	10,900	$77,826
No positions match the current search.

New Positions

Positions the filer opened this quarter

25 positions

Ticker	Company	Shares	Value
WDC	Western Digital Corp	9,048	$4,111,954
TXN	Texas Instruments Inc	13,781	$3,859,920
STX	Seagate Technology Holdings plc	3,990	$3,680,136
KLAC	Kla Corp	17,955	$3,499,968
DELL	Dell Technologies Inc.	4,500	$2,420,775
HPE	Hewlett Packard Enterprise Co	33,235	$2,123,384
BX	Blackstone Inc.	13,256	$1,485,865
UPS	United Parcel Service Inc	14,594	$1,363,663
CSCO	Cisco Systems, Inc.	10,864	$1,169,292
INTC	Intel Corp	9,385	$1,128,358
QQQ	Invesco Qqq Trust, Series 1	1,281	$947,645
SLV	iShares Silver Trust	16,458	$897,125
EXPE	Expedia Group, Inc.	3,206	$844,332
KKR	KKR & Co. Inc.	8,866	$809,465
PCG	PG&E Corp	62,469	$765,245
MAGS	Roundhill Magnificent Seven ETF	6,552	$469,712
SNDK	Sandisk Corp	242	$421,053
OXY	Occidental Petroleum Corp	6,422	$355,265
XLV	State Street(R) Health Care Select Sector SPDR(R) ETF	1,962	$330,440
ALC	Alcon Inc	4,859	$314,620
SMH	VanEck Semiconductor ETF	478	$291,102
GTLB	Gitlab Inc.	5,900	$278,775
PZZA	Papa Johns International Inc	14,100	$277,911
LRCX	Lam Research Corp	840	$275,948
CB	Chubb Ltd	812	$264,103
No positions match the current search.

Sold Out

Positions the filer fully exited

25 positions

Ticker	Company	Shares	Value
SPY	Spdr S&P 500 ETF Trust	85,734	$64,023,579
RSP	Victory Portfolios II	36,500	$7,766,105
AMZN	Amazon Com Inc	15,712	$3,744,798
GOOG	Alphabet Inc.	9,880	$3,490,900
SMCI	Super Micro Computer, Inc.	107,450	$3,151,508
MSFT	Microsoft Corp	6,919	$2,580,925
AXP	American Express Co	6,789	$2,296,379
NEM	NEWMONT Corp	22,147	$2,068,529
SNOW	Snowflake Inc.	8,000	$2,036,000
SBUX	Starbucks Corp	12,993	$1,327,754
CRM	Salesforce, Inc.	8,355	$1,308,894
SNY	Sanofi	12,562	$535,894
NOW	ServiceNow, Inc.	5,273	$523,503
DIS	Walt Disney Co	4,993	$480,576
MRVL	Marvell Technology, Inc.	1,293	$385,171
ANET	Arista Networks, Inc.	2,050	$348,254
PG	PROCTER & GAMBLE Co	2,235	$327,740
AVAV	AeroVironment Inc	1,945	$321,061
FDX	Fedex Corp	1,003	$314,069
BP	Bp PLC	8,481	$313,372
MGM	MGM Resorts International	6,279	$300,198
AMGN	Amgen Inc	800	$289,696
COP	Conocophillips	2,717	$282,459
IP	International Paper Co	6,997	$266,585
SPCX	Space Exploration Technologies Corp	1,525	$260,561
No positions match the current search.

Portfolio Positions

Compact Export CSV View 13F filing

118 tracked positions · $421,176,757 total · filing declares 216 positions · $425,486,728 · as of Sep 30, 2026

All sectors Basic Materials Communication Services Consumer Cyclical Consumer Defensive Energy Financial Services Healthcare Industrials Real Estate Technology Utilities

Showing 1–50 of 118 positions by value · page 1 of 3

Ticker	Company	Type	Shares	Δ Shares	Value (USD)	% Δ Value	% of Portfolio
QQQ	Invesco Qqq Trust, Series 1 PUT CALL + SHARES	Added	170,981	+142,281	$126,486,614	+498.5%	30.03%
TSLA	Tesla, Inc. PUT CALL + SHARES Consumer Cyclical	Added	75,094	+44,266	$26,644,102	+105.5%	6.33%
SNDK	Sandisk Corp PUT CALL + SHARES Technology	Added	11,142	+10,142	$19,385,854	+752.6%	4.60%
MRVL	Marvell Technology, Inc. PUT CALL Technology	Added	59,000	+49,207	$15,588,390	+434.4%	3.70%
NVDA	Nvidia Corp PUT CALL + SHARES Technology	Reduced	67,198	-2,808	$15,346,679	+9.6%	3.64%
SMH	VanEck Semiconductor ETF PUT CALL + SHARES	Reduced	18,278	-722	$11,131,302	−10.7%	2.64%
USO	United States Oil Fund, LP PUT CALL + SHARES	Added	73,870	+45,070	$10,759,904	+251.0%	2.55%
WDC	Western Digital Corp PUT CALL + SHARES Technology	NEW	17,648	NEW	$8,020,310	NEW	1.90%
STX	Seagate Technology Holdings plc PUT CALL + SHARES Technology	NEW	8,390	NEW	$7,738,432	NEW	1.84%
META	Meta Platforms, Inc. PUT + SHARES Communication Services	Reduced	10,558	-18,129	$7,656,450	−52.6%	1.82%
KR	Kroger Co PUT CALL Consumer Defensive	NEW	121,300	NEW	$7,110,606	NEW	1.69%
SLV	iShares Silver Trust PUT CALL + SHARES	Added	129,958	+51,958	$7,084,010	+69.9%	1.68%
ORCL	Oracle Corp PUT CALL Technology	Added	50,400	+46,400	$6,919,920	+1080.5%	1.64%
NBIS	Nebius Group N.V. PUT CALL + SHARES Communication Services	Added	27,847	+8,147	$6,568,550	+20.7%	1.56%
AAPL	Apple Inc. PUT CALL + SHARES Technology	Reduced	19,710	-28,012	$6,563,824	−52.5%	1.56%
TSM	Taiwan Semiconductor Manufacturing Co Ltd PUT CALL + SHARES Technology	Reduced	14,218	-8,845	$6,486,109	−41.1%	1.54%
ZS	Zscaler, Inc. PUT CALL Technology	NEW	31,000	NEW	$6,182,020	NEW	1.47%
KLAC	Kla Corp PUT CALL + SHARES Technology	Added	25,355	+22,155	$4,942,450	+411.9%	1.17%
DELL	Dell Technologies Inc. PUT + SHARES Technology	NEW	9,000	NEW	$4,841,550	NEW	1.15%
BX	Blackstone Inc. PUT CALL + SHARES Financial Services	NEW	40,756	NEW	$4,568,340	NEW	1.08%
HPE	Hewlett Packard Enterprise Co PUT CALL + SHARES Technology	NEW	71,435	NEW	$4,563,982	NEW	1.08%
EXPE	Expedia Group, Inc. PUT CALL + SHARES Consumer Cyclical	Added	16,406	+14,906	$4,320,684	+1025.7%	1.03%
UPS	United Parcel Service Inc PUT CALL + SHARES Industrials	Added	45,994	+20,194	$4,297,679	+55.0%	1.02%
TXN	Texas Instruments Inc Technology	Added	13,781	+1,081	$3,859,920	+2.0%	0.92%
AMD	Advanced Micro Devices Inc PUT CALL + SHARES Technology	Added	6,177	+807	$3,778,841	+21.1%	0.90%
GOOG	Alphabet Inc. PUT CALL Communication Services	Reduced	11,000	-8,680	$3,748,140	−46.1%	0.89%
AVGO	Broadcom Inc. PUT CALL + SHARES Technology	Reduced	10,142	-4,107	$3,561,768	−33.8%	0.85%
SPY	Spdr S&P 500 ETF Trust PUT CALL	Reduced	4,200	-302,834	$3,203,046	−98.6%	0.76%
BA	Boeing Co PUT + SHARES Industrials	Reduced	16,646	-12,642	$3,096,988	−51.2%	0.74%
INTC	Intel Corp PUT CALL + SHARES Technology	NEW	22,385	NEW	$2,691,348	NEW	0.64%
XLK	State Street(R) Technology Select Sector SPDR(R) ETF PUT CALL	NEW	13,700	NEW	$2,681,775	NEW	0.64%
MSFT	Microsoft Corp PUT CALL Technology	Reduced	5,200	-11,919	$2,667,080	−58.2%	0.63%
MU	Micron Technology Inc CALL Technology	Reduced	2,200	-4,500	$2,343,242	−69.7%	0.56%
CHWY	Chewy, Inc. PUT CALL + SHARES Consumer Cyclical	NEW	116,300	NEW	$2,116,660	NEW	0.50%
XLV	State Street(R) Health Care Select Sector SPDR(R) ETF PUT CALL + SHARES	NEW	12,362	NEW	$2,082,008	NEW	0.49%
ROKU	Roku, Inc PUT + SHARES Communication Services	Reduced	13,200	-22,900	$2,010,096	−59.7%	0.48%
IGV	iShares Expanded Tech-Software Sector ETF PUT CALL	NEW	18,500	NEW	$1,969,880	NEW	0.47%
SHOP	Shopify Inc. PUT CALL Technology	NEW	13,200	NEW	$1,957,560	NEW	0.46%
LRCX	Lam Research Corp PUT CALL + SHARES Technology	NEW	5,540	NEW	$1,819,945	NEW	0.43%
KKR	KKR & Co. Inc. PUT + SHARES Financial Services	NEW	19,866	NEW	$1,813,765	NEW	0.43%
ETN	Eaton Corp plc PUT CALL + SHARES Industrials	NEW	4,180	NEW	$1,796,187	NEW	0.43%
IWM	iShares Russell 2000 ETF CALL	Held	6,000	0	$1,667,340	−7.5%	0.40%
MRNA	Moderna, Inc. CALL Healthcare	NEW	8,400	NEW	$1,617,588	NEW	0.38%
GLW	Corning Inc PUT CALL Technology	Reduced	10,500	-3,100	$1,614,480	−53.5%	0.38%
CIEN	Ciena Corp PUT + SHARES Technology	Reduced	4,400	-1,690	$1,548,008	−48.2%	0.37%
PCG	PG&E Corp PUT + SHARES Utilities	NEW	124,969	NEW	$1,530,870	NEW	0.36%
U	Unity Software Inc. PUT CALL Technology	NEW	35,000	NEW	$1,432,550	NEW	0.34%
MAGS	Roundhill Magnificent Seven ETF PUT + SHARES	Added	19,552	+6,552	$1,401,682	+67.7%	0.33%
PZZA	Papa Johns International Inc PUT CALL + SHARES Consumer Cyclical	NEW	65,400	NEW	$1,289,034	NEW	0.31%
AMAT	Applied Materials Inc PUT CALL Technology	Reduced	2,500	-500	$1,278,450	−41.1%	0.30%

Showing the top 50 of 118 positions. Create a free account to see every position, past quarters, search, filters and CSV export.

Covers the securities this platform tracks: U.S.-listed common stock and the put/call positions reported on it. A 13F can also report security types outside that coverage — preferred shares, bonds, warrants, untracked share classes — so the filing's own declared total can exceed the figures above. The source filing is linked at the top of this table.