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CARBO CERAMICS INC
CARBO CERAMICS INC. Institutional holdings reported to the SEC.

Institutional Holders (2015Q4)
Portfolio Summary: 3 Institutional holders with a total value of $2,508,000.
#
Manager Name
Shares
Value ($)
%
Options
Notes
1 GROUP ONE TRADING LLC 78,600 1,352,000 53.91% Put
2 CITADEL ADVISORS LLC 45,200 777,000 30.98% Put
3 SIMPLEX TRADING, LLC 289 379,000 15.11% Put

From 2023-01-03 onward, the SEC requires values to be reported in nearest dollars. Earlier filings reported values in thousands; therefore, positions shown as $0 in older filings may represent actual values between $0–$999.