Jane Street’s Rubicon Technology, Inc. RBCN Stock Holding History

Jane Street’s Portfolio RBCN Stock Details RBCN Fund Activity

Bought

Maintained

Sold

Quarter	Market Value	Status	Shares	Change in Stake	Trade Value	Portfolio Weight	Portfolio Position
2015 Q3	–	Sell	-1,013	Closed	-$25K	–	4310
2015 Q2	$25K	Buy	+1,013	New	+$33.1K	﹤0.01%	3550
2014 Q1	–	Sell	-2,277	Closed	-$227K	–	3168
2013 Q4	$227K	Buy	2,277 +759	+50%	+$73.6K	﹤0.01%	1922
2013 Q3	$184K	Sell	1,518 -1,894	-56%	-$192K	﹤0.01%	2443
2013 Q2	$272K	Buy	+3,412	New	+$249K	﹤0.01%	1973

Other funds holding RBCN

Ariel Investments Chicago, Illinois $8.93B AUM 29.58% 1-Year Est. Return

Fidelity Investments Boston, Massachusetts $1.9T AUM 41.92% 1-Year Est. Return

CWAM

Columbia Wanger Asset Management Chicago, Illinois $6.69B AUM 31.14% 1-Year Est. Return

Ecofin Advisors London, United Kingdom $239M AUM 45.14% 1-Year Est. Return

Royce & Associates New York $10.1B AUM 42.88% 1-Year Est. Return

Aegis Financial Mc Lean, Virginia $580M AUM 105.74% 1-Year Est. Return

Vanguard Group Malvern, Pennsylvania $6.9T AUM 27.45% 1-Year Est. Return

BIT

BlackRock Institutional Trust San Francisco, California $675B AUM 16.07% 1-Year Est. Return

New York State Common Retirement Fund Albany, New York $71.6B AUM 29.66% 1-Year Est. Return

Dimensional Fund Advisors Austin, Texas $481B AUM 30.42% 1-Year Est. Return

Jane Street's RBCN Position: Q3 2015 in Review

Jane Street sold out of Rubicon Technology, Inc. (RBCN) in Q3 2015, closing a stake of 1,013 shares — an estimated $25K sold.

Jane Street first reported a position in RBCN in Q2 2013 and held it in 4 quarters. The position peaked at $272K in Q2 2013. 56 funds tracked by Wall St. Rank hold RBCN as of Q3 2015.

Jane Street reported no remaining Rubicon Technology, Inc. position as of Q3 2015 after selling out during the quarter.
Jane Street sold 1,013 Rubicon Technology, Inc. shares in Q3 2015, an estimated $25K.
Jane Street first reported a position in Rubicon Technology, Inc. in Q2 2013 and held it in 4 quarters.
Jane Street's Rubicon Technology, Inc. position peaked at $272K in Q2 2013.
56 funds tracked by Wall St. Rank held Rubicon Technology, Inc. as of Q3 2015.

Based on Jane Street's 13F filing for Q3 2015, filed 16 Nov 2015.