Notice: The Short Interest Tracker is based on data sourced wholly from the FCA's daily short positions report. The information on this website is provided for information only. We don't provide any warranty as to the accuracy of the information on this site and it should not be relied upon in any way.

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We have changed the way we show data on this page. It now shows the date that short positions were changed rather than the date on which they were disclosed to the FCA.

Positions changed on Friday 15 May

Company Fund % short Change Date changed
AGGREKO PLC BlackRock Investment Management (UK) Limited 0.87% -0.03% 15 May 2015
AGGREKO PLC WorldQuant LLC 0.49% -0.01% 15 May 2015
AMLIN PLC Echo Street Capital Management LLC 0.62% 0.0% 15 May 2015
BWIN.PARTY DIGITAL ENTERTAIN JPMorgan Asset Management (UK) Ltd 1.14% -0.36% 15 May 2015
DRAX GROUP PLC Marshall Wace LLP 0.52% 0.0% 15 May 2015
GW PHARMACEUTICALS PLC HealthCor Management, L.P. 0.47% -0.11% 15 May 2015
IMMUNODIAGNOSTIC SYSTEMS HLD Jupiter Investment Management Limited 0.24% -0.43% 15 May 2015
J. Sainsbury PLC Eton Park International LLP 0.69% -0.01% 15 May 2015
Ladbrokes Coral Group PLC BlackRock Institutional Trust Company, National Association 0.61% 0.04% 15 May 2015
Ladbrokes Coral Group PLC BlackRock Investment Management (UK) Limited 1.04% 0.13% 15 May 2015
LANCASHIRE HOLDINGS LTD ODEY ASSET MANAGEMENT LLP 6.39% 0.25% 15 May 2015
MONITISE PLC Marshall Wace LLP 0.59% -0.09% 15 May 2015
PERSIMMON PLC GLG Partners LP 0.45% -0.07% 15 May 2015
PERSIMMON PLC Janus Henderson Investors UK Limited 0.49% -0.09% 15 May 2015
QUINDELL PORTFOLIO PLC Roble S.L. 1.69% -0.20% 15 May 2015
RS Group Plc BlackRock Investment Management (UK) Limited 1.22% 0.11% 15 May 2015
TUNGSTEN CORP PLC Marshall Wace LLP 0.58% -0.11% 15 May 2015
WILLIAM HILL Millennium International Management LP 0.56% -0.05% 15 May 2015
Wm Morrison Supermarkets PLC BlackRock Investment Management (UK) Limited 0.71% 0.02% 15 May 2015