Largest & Smallest Market Cap AIM Companies

UPDATED JANUARY, 2019

Largest & Smallest Market Cap AIM Companies

As depicted by the extreme variation in size below, AIM offers investors a huge variety of investment opportunities (updated 7th April, 2019). 

25 Largest AIM Companies By Market Cap

  • Burford Capital Ltd (BUR) – £3.76bn
  • Fevertree Drinks PLC (FEVR) – £3.4bn
  • Hutchinson China Meditech Ltd (HCM) – £3.13bn
  • ASOS PLC (ASC) – £2.64bn
  • Abcam PLC (ABC) £2.39bn
  • boohoo.com PLC (BOO) – £2.29bn
  • RWS Holdings PLC (RWS) – £1.43bn
  • Secure Income REIT PLC (SIR) – £1.32bn
  • Clinigen Group PLC (CLIN) – £1.29bn
  • Globalworth Real Estate Investments Ltd (GWI) – £1.25bn
  • Blue Prism Group PLC (PRSM) – £1.22bn
  • Dart Group PLC (DTG) – £1.2bn
  • Breedon Group PLC (BREE) – £1.15bn
  • GB Group PLC (GBG) – £997.04m
  • James Halstead PLC (JHD) – £995.22m
  • Gamma Communications PLC (GAMA) – £958.77m
  • Hurricane Energy PLC (HUR) – £880.23m
  • Plus500 Ltd (PLUS) – £865.82m
  • Keywords Studios PLC (KWS) – £845.32m
  • Young & Co’s Brewery PLC (YNGA) – £812.82m
  • First Derivatives PLC (FDP) – £771.29m
  • Craneware PLC (CRW) – £744.9m
  • Globaldata PLC (DATA) – £703.9m
  • EMIS Group PLC (EMIS) – £702.76
  • Advanced Medical Solutions Group PLC (AMS) – £689.54

25 Smallest AIM Companies By Market Cap

  • Andalas Energy and Power PLC (ADL) – £1.03m
  • Tertiary Minerals PLC (TYM) – £0.996m
  • Karelian Diamonds Resources PLC (KDR) – £0.982m
  • Slingsby (H.C) PLC (SLNG) – £0.975m
  • Port Erin Biopharma Investments Ltd (PEBI) – £0.951m
  • Bezant Resources PLC (BZT) – £0.948m
  • Gunsynd PLC (GUN) – £0.927m
  • PhotonStar LED Group PLC (PSL) – £0.906m
  • Origo Partners PLC (OPP) – £0.807m
  • Sabien Technology Group PLC (SNT) – £0.737m
  • Regency Mines PLC (RGM) – £0.712m
  • Abal Group PLC (ABAL) – £0.707m
  • Cellcast PLC (CLTV) – £0.658m
  • Amphion Innovations PLC (AMP) – £0.629m
  • PCG Entertainment PLC (PCGE) – £0.622m
  • Zibao Metals Recycling Holdings PLC (ZBO) – £0.610m
  • MBL Group PLC (MUBL) – £0.605m
  • Marechale Capital PLC (MAC) – £0.562m
  • Spitfire Oil Ltd (SRO) – £0.556m
  • Richland Resources Ltd (RLD) – £0.539m
  • Edenville Energy PLC (EDL) – £0.412m
  • Tiger Resources PLC (TIR) – £0.368m
  • Inspirit Energy Holdings PLC (INSP) – £0.308m
  • Mobile Streams PLC (MOS) – £0.232m
  • Eight Capital Partners (ECP) – £0.190m

*The illiquidity in the trading of the shares above means you should proceed with the upmost caution when considering investing in the real lower-end of the FTSE AIM market. To add to this, several of the smallest AIM companies listed above currently have their shares suspended or are looking towards potentially delisting from the market.

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