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Two Sigma Securities, LLC

CIK:0001450144
Hedge Fund
$60B AUM
1,437 holdings
New York, NY, United States
Founded:2009
500 employees
Latest filing:Jun 30, 2025

Two Sigma Securities, LLC is a quantitative trading firm headquartered in New York, NY. It is a subsidiary of Two Sigma, a renowned quantitative financial services firm founded in 2001. Two Sigma Securities operates as a market maker and liquidity provider, using advanced data science and technology to systematically trade across global markets. The firm is part of the broader Two Sigma group, which employs thousands globally—including over 1,700 staff—serves institutional investors and clients, and is recognized for pioneering scientific and engineering approaches in quantitative trading and market making.

Investment Strategy

Two Sigma Securities specializes in systematic trading and quantitative market making. The firm leverages advanced data science, machine learning, and ultra-low latency technologies to provide liquidity and optimize trading in equities, futures, ETFs, and options markets internationally. Its business is structured in three segments: market making and intraday alpha strategies, options trading via sophisticated forecast models, and client trading through wholesale market making and algorithmic execution. The firm's philosophy centers on making markets more efficient and solving complex problems through rigorous scientific research and innovation.

Top Buys
E
EFAISHARES TR
+$9.1M
B
BNDVANGUARD BD INDEX FDS
+$7.5M
O
ORCLORACLE CORP
+$6.1M
W
WMBWILLIAMS COS INC
+$5.4M
L
LQDISHARES TR
+$5.3M
Top Sells
A
AGGISHARES TR
-$11.0M
S
SPIBSPDR SERIES TRUST
-$10.4M
B
BKNGBOOKING HOLDINGS INC
-$10.0M
N
NVDANVIDIA CORPORATION
-$6.9M
B
BECNBEACON ROOFING SUPPLY INC
-$6.5M

Top Holdings

E
EFAISHARES TR
+1.1%$9.1M
I
IWMISHARES TR
+1.1%$8.8M
S
SPYSPDR S&P 500 ETF TR
+1.0%$8.2M
B
BNDVANGUARD BD INDEX FDS
+0.9%$7.5M
V
VWOVANGUARD INTL EQUITY INDEX F
+0.9%$7.0M

Equity Positions (1,289)

TickerSecurityWeightMarket ValueSharesAvg CostPriceChange (QoQ)
E
EFA
ISHARES TR1.13%$9.1M102,086$89.39$89.39+$9.1M
I
IWM
ISHARES TR1.09%$8.8M40,942$199.44$215.79-$655.1K
S
SPY
SPDR S&P 500 ETF TR1.01%$8.2M13,232$567.12$617.85+$4.8M
B
BND
VANGUARD BD INDEX FDS0.92%$7.5M101,763$73.63$73.63+$7.5M
V
VWO
VANGUARD INTL EQUITY INDEX F0.87%$7.0M141,952$47.60$49.46+$4.2M

Industry Allocation

SERVICES-PREPACKAGED SOFTWARE
+5.5%
PHARMACEUTICAL PREPARATIONS
+2.0%
REAL ESTATE INVESTMENT TRUSTS
+1.8%
COMMODITY CONTRACTS BROKERS & DEALERS
+1.8%
SERVICES-BUSINESS SERVICES, NEC
+1.5%