GROUP ONE TRADING, L.P. - SPS COMM INC ownership

SPS COMM INC's ticker is and the CUSIP is 78463M957. A total of 1 filers reported holding SPS COMM INC in Q4 2013. The put-call ratio across all filers is - and the average weighting 0.0%.

Quarter-by-quarter ownership
GROUP ONE TRADING, L.P. ownership history of SPS COMM INC
ValueSharesWeighting
Q4 2013$20,0003000.00%
Other shareholders
SPS COMM INC shareholders Q4 2013
NameSharesValueWeighting ↓
CONCOURSE FINANCIAL GROUP SECURITIES, INC. 0$00.00%
SIMPLEX TRADING, LLC 8$60,0000.00%
View complete list of SPS COMM INC shareholders