SIMPLEX TRADING, LLC - GRIDSUM HLDG INC ownership

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GRIDSUM HLDG INC's ticker is and the CUSIP is 398132900. A total of 2 filers reported holding GRIDSUM HLDG INC in Q2 2019. The put-call ratio across all filers is - and the average weighting 0.0%.

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Filings
Quarter-by-quarter ownership
SIMPLEX TRADING, LLC ownership history of GRIDSUM HLDG INC
ValueSharesWeighting
Q1 2019$19,000
+11.8%
65
+140.7%
0.00%–
Q3 2018$17,000
-46.9%
27
-42.6%
0.00%–
Q2 2018$32,000–47
-41.2%
0.00%–
Q1 2018$0–80–0.00%–
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Other shareholders
GRIDSUM HLDG INC shareholders Q2 2019
NameSharesValueWeighting ↓
CONCOURSE FINANCIAL GROUP SECURITIES, INC. 0$00.00%
GROUP ONE TRADING, L.P. 7,800$22,0000.00%
View complete list of GRIDSUM HLDG INC shareholders