GROUP ONE TRADING, L.P.

Q4 2013 13F-HR Holdings

Location
Chicago, IL
Holdings as of
12/31/2013
Date filed
1/31/2014
Form type
13F-HR
Num holdings
5,213
Total value ($000)
$6,624,863
Net value change ($000)
New positions
1468
Sold out positions
0
Turnover %
100.0%
Sector allocation + QoQ delta (equities-only)

Snapshot: Change Analysis

Compared to previous filing: —
Methodology: sector metrics are equities-only; instrument mix chart is ex-options; options exposure is shown separately. Why this matters.
Top Adds (Value $000, Stocks/ETFs)
Jive Software, Inc. 24,388
Time Warner Cable 18,839
COBALT INTERNATIONAL 15,202
Old COPPER Company, Inc. 13,295
ACAD 11,785
LBTYA 11,556
NEW RITE AID, LLC 11,247
VOD 10,798
GRPN 10,782
BB 10,253
Top Reduces (Value $000, Stocks/ETFs)
Instrument mix + QoQ Δ (ex-options)
Derivatives reported exposure ($000): 5,689,841 (85.9% of total reported value)
How this table is calculated: SEC VALUE ($000) is used as reported. For derivatives (PUT/CALL/WARRANT/RIGHT), SEC value represents reported underlying exposure, not premium cash paid/received. Column % is bucket-based: non-options share is calculated inside non-option total, options share is calculated inside options total. Details.
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Instrument:
Issuer Name Ticker Sector Industry Class History Value ($000) % Shares Shares Δ Shares Δ% Value Δ ($000) Value Δ% Principal Option Type