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

Institutional Holders (2016Q1)
Portfolio Summary: 3 Institutional holders with a total value of $1,990,000.
#
Manager Name
Shares
Value ($)
%
Options
Notes
1 GROUP ONE TRADING LLC 81,000 1,150,000 57.79% Put
2 SIMPLEX TRADING, LLC 512 437,000 21.96% Put
3 CITADEL ADVISORS LLC 28,400 403,000 20.25% 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.