The FTSE 100 was up 0.5% at 7,260.51 in afternoon trade on Tuesday, as London sweltered in what felt like 10 million degrees Celsius.
Informa rallied as it backed its full-year expectations, hailed strong first-half revenues and announced the acquisition of US-based Industry Dive for $389m.
Banks were also on the front foot, with Standard Charted, Lloyds, Barclays and NatWest all higher.
Miners were under the cosh as metals prices fell, with Anglo American, Glencore, Antofagasta and Rio Tinto all lower.
FTSE 100 – Risers
Informa (INF) 561.20p 4.51%
Harbour Energy (HBR) 352.50p 4.20%
B&M European Value Retail S.A. (DI) (BME) 407.80p 3.50%
Burberry Group (BRBY) 1,687.00p 2.65%
Unilever (ULVR) 3,965.00p 2.59%
JD Sports Fashion (JD.) 135.20p 2.42%
Standard Chartered (STAN) 578.80p 2.26%
Lloyds Banking Group (LLOY) 43.69p 2.13%
Barclays (BARC) 157.40p 2.06%
NATWEST GROUP PLC ORD 100P (NWG) 225.40p 1.99%
FTSE 100 – Fallers
GSK (GSK) 1,774.60p -18.28%
Aveva Group (AVV) 2,231.00p -2.79%
Flutter Entertainment (CDI) (FLTR) 7,718.00p -1.96%
Anglo American (AAL) 2,590.50p -1.78%
Glencore (GLEN) 415.00p -1.14%
Antofagasta (ANTO) 1,028.50p -0.82%
Sage Group (SGE) 674.40p -0.77%
Prudential (PRU) 1,003.00p -0.74%
Rio Tinto (RIO) 4,677.50p -0.71%
London Stock Exchange Group (LSEG) 7,598.00p -0.68%
