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 Thursday 18 May

Company Fund % short Change Date changed
Acacia Mining PLC Marshall Wace LLP 0.48% -0.11% 18 May 2017
AGGREKO PLC Millennium International Management LP 0.47% -0.03% 18 May 2017
AMEC PLC KGH LTD. 0.68% -0.06% 18 May 2017
ASHTEAD GROUP PLC GLG Partners LP 0.48% -0.11% 18 May 2017
BALFOUR BEATTY PLC BlackRock Investment Management (UK) Limited 0.50% 0.02% 18 May 2017
Barratt Redrow plc Janus Henderson Investors UK Limited 1.03% 0.06% 18 May 2017
Boohoo Group WorldQuant LLC 0.60% 0.07% 18 May 2017
BUNZL PLC BlackRock Investment Management (UK) Limited 0.60% 0.08% 18 May 2017
Cairn Homes PLC Numeric Investors LLC 0.87% -0.11% 18 May 2017
Cairn Homes PLC Oceanwood Capital Management LLP 0.47% -0.03% 18 May 2017
Capricorn Energy Plc Canada Pension Plan Investment Board 0.50% 0.03% 18 May 2017
CARILLION PLC Gladstone Capital Management LLP 0.98% 0.11% 18 May 2017
Debenhams PLC ODEY ASSET MANAGEMENT LLP 3.80% 0.29% 18 May 2017
EASYJET PLC WorldQuant LLC 0.61% 0.02% 18 May 2017
ESSENTRA PLC JPMorgan Asset Management (UK) Ltd 1.01% -0.15% 18 May 2017
G4S BlackRock Investment Management (UK) Limited 0.70% 0.09% 18 May 2017
Greene King PLC WorldQuant LLC 0.79% -0.10% 18 May 2017
GREGGS PLC Jupiter Investment Management Limited 0.54% -0.24% 18 May 2017
HAMMERSON PLC Millennium International Management LP 0.62% 0.07% 18 May 2017
HOCHSCHILD MINING PLC Millennium International Management LP 0.47% -0.03% 18 May 2017
IMAGINATION TECH GROUP PLC GSA Capital Partners LLP 1.35% 0.10% 18 May 2017
IMAGINATION TECH GROUP PLC WorldQuant LLC 0.81% -0.18% 18 May 2017
KAZ Minerals PLC Oxford Asset Management 0.51% 0.01% 18 May 2017
KAZ Minerals PLC WorldQuant LLC 0.66% -0.11% 18 May 2017
KIER GROUP PLC WorldQuant LLC 0.48% -0.02% 18 May 2017
LAIRD PLC GSA Capital Partners LLP 0.70% 0.09% 18 May 2017
LIVANOVA PLC Millennium International Management LP 3.06% -0.06% 18 May 2017
MARKS & SPENCER GROUP PLC Jupiter Investment Management Limited 0.83% 0.06% 18 May 2017
MARKS & SPENCER GROUP PLC Lone Pine Capital LLC 1.61% 0.11% 18 May 2017
MARSTON'S PLC Janus Henderson Investors UK Limited 0.09% -0.88% 18 May 2017
Naked Wine WorldQuant LLC 0.49% -0.01% 18 May 2017
Nanoco Group Plc JPMorgan Asset Management (UK) Ltd 0.83% 0.21% 18 May 2017
NCC GROUP PLC WorldQuant LLC 1.06% -0.04% 18 May 2017
OCADO GROUP PLC Marshall Wace LLP 1.68% -0.03% 18 May 2017
PAYSAFE GROUP PLC AEK (UK) Limited 1.59% -0.14% 18 May 2017
PETROFAC LTD AKO Capital LLP 1.22% -0.26% 18 May 2017
PETROFAC LTD Marshall Wace LLP 0.47% -0.21% 18 May 2017
PLAYTECH PLC CQS (UK) LLP 1.51% 0.07% 18 May 2017
SIRIUS MINERALS PLC Highbridge Capital Management LLC 1.55% 0.14% 18 May 2017
SSE PLC Marshall Wace LLP 0.57% -0.03% 18 May 2017
TESCO PLC Alpine Associates Management Inc. 0.57% 0.08% 18 May 2017
TESCO PLC Davidson Kempner European Partners LLP 0.52% 0.0% 18 May 2017
TULLOW OIL PLC Millennium International Management LP 0.71% 0.02% 18 May 2017
TULLOW OIL PLC ODEY ASSET MANAGEMENT LLP 2.00% 0.07% 18 May 2017
TULLOW OIL PLC WorldQuant LLC 0.65% -0.12% 18 May 2017
VICTREX PLC GLG Partners LP 1.27% -0.06% 18 May 2017
Wm Morrison Supermarkets PLC Discovery Capital Management, LLC 2.18% -0.04% 18 May 2017
Wm Morrison Supermarkets PLC Marshall Wace LLP 1.43% -0.12% 18 May 2017
Wm Morrison Supermarkets PLC Millennium International Management LP 1.00% 0.10% 18 May 2017
WOOD GROUP (JOHN) PLC AHL Partners LLP 0.59% -0.01% 18 May 2017
WOOD GROUP (JOHN) PLC Pine River Capital Management L.P. 1.02% 0.12% 18 May 2017