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Parallax Volatility Advisers, L.P.

CIK:0001521001
Hedge Fund
$1B AUM
1,527 holdings
San Francisco, CA, USA
Founded:1996
40 employees
Latest filing:Jun 30, 2025

Parallax Volatility Advisers, L.P. is an asset management firm headquartered in San Francisco, California, operating primarily as a hedge fund. The firm was founded in 1996 and specializes in volatility trading strategies. It has fewer than 50 employees and manages investment portfolios for institutional clients, such as pension funds, foundations, and high-net-worth individuals.

Investment Strategy

Parallax Volatility Advisers, L.P. employs options-based, volatility-oriented trading strategies, seeking to generate risk-adjusted returns by capitalizing on inefficiencies in global equity and options markets. The approach integrates quantitative analysis, proprietary models, and active risk management. The firm focuses on option arbitrage, volatility trading, and relative value strategies, aiming to achieve returns while controlling exposure to broader market risks.

Top Buys
A
ARMARM HOLDINGS PLC
+$70.3M
N
NFLXNETFLIX INC
+$58.1M
G
GEGE AEROSPACE
+$44.5M
T
TLTISHARES TR
+$40.4M
N
NETCLOUDFLARE INC
+$39.8M
Top Sells
T
TSMTAIWAN SEMICONDUCTOR MFG LTD
-$135.2M
T
TSLATESLA INC
-$88.3M
A
AAPLAPPLE INC
-$70.0M
T
TMUST-MOBILE US INC
-$53.1M
V
VVISA INC
-$51.3M

Top Holdings

N
NVDANVIDIA CORPORATION
+0.4%$193.6M
A
ARMARM HOLDINGS PLC
+0.2%$96.0M
N
NFLXNETFLIX INC
+0.2%$92.4M
N
NETCLOUDFLARE INC
+0.2%$68.9M
G
GEVGE VERNOVA INC
+0.1%$59.1M

Equity Positions (398)

TickerSecurityWeightMarket ValueSharesAvg CostPriceChange (QoQ)
N
NVDA
NVIDIA CORPORATION0.44%$193.6M1,237,449$70.94$157.99+$21.6M
A
ARM
ARM HOLDINGS PLC0.22%$96.0M593,626$146.19$161.74+$70.3M
N
NFLX
NETFLIX INC0.21%$92.4M68,984$1104.83$1339.13+$58.1M
N
NET
CLOUDFLARE INC0.16%$68.9M360,365$130.70$195.83+$39.8M
G
GEV
GE VERNOVA INC0.13%$59.1M111,761$259.51$529.15+$15.0M

Options Positions (10)

TickerSecurityActionTypeNotional ValueContractsUnderlying PricePremium PaidChange (Contracts)Change (Value)
S
SPY
SPDR S&P 500 ETF TRBought
Put
$8.39B135,757$617.85$555.85+67,753+$4.58B
Q
QQQ
INVESCO QQQ TRBought
Put
$3.41B61,877$551.64$392.25+3,253+$664.4M
Q
QQQ
INVESCO QQQ TRSold
Call
$1.29B23,374$551.64$338.48-2,016+$98.8M
I
IWM
ISHARES TRSold
Put
$1.11B51,507$215.79$193.00-1,936+$45.3M
S
SPY
SPDR S&P 500 ETF TRBought
Call
$1.07B17,276$617.85$559.73+4,607+$358.7M

Industry Allocation

SEMICONDUCTORS & RELATED DEVICES
+7.8%
SERVICES-COMPUTER PROGRAMMING, DATA PROCESSING, ETC.
+5.3%
SERVICES-PREPACKAGED SOFTWARE
+4.7%
SERVICES-BUSINESS SERVICES, NEC
+2.7%
NATIONAL COMMERCIAL BANKS
+2.6%