Source: Sharecast
Defence firms Babcock and BAE Systems were among the top performers on the index after the UK government pledged to build up to 12 attack submarines as part of AUKUS programme.
Russ Mould, investment director at AJ Bell, said investors were targeting "an industry with a clear earnings tailwind".
Precious metals miner Fresnillo shone as gold prices rose amid geopolitical tensions.
On the downside, Anglo American was the biggest loser after it officially completed the demerger of its Valterra Platinum business following the approval of shareholders, allowing the company to focus on its copper, iron ore and crop nutrients operations.
Valterra, which is already listed in Johannesburg, began trading in a secondary listing in London on Monday, with Anglo retaining a 19.9% interest in the platinum producer.
Anglo’s chief executive Duncan Wanblad said the deal was a "major step in our plan to unlock the inherent value in our portfolio".
FTSE 100 - Risers
Babcock International Group (BAB) 1,014.00p 8.33%
Fresnillo (FRES) 1,218.00p 4.73%
International Consolidated Airlines Group SA (CDI) (IAG) 332.50p 1.96%
BAE Systems (BA.) 1,937.50p 1.89%
Schroders (SDR) 361.00p 1.58%
Antofagasta (ANTO) 1,797.50p 1.52%
Shell (SHEL) 2,484.50p 1.43%
BP (BP.) 364.85p 1.42%
Hiscox Limited (DI) (HSX) 1,276.00p 1.19%
GSK (GSK) 1,522.50p 1.03%
FTSE 100 - Fallers
Anglo American (AAL) 2,221.00p -11.29%
Flutter Entertainment (DI) (FLTR) 17,895.00p -4.53%
WPP (WPP) 585.40p -2.34%
Ashtead Group (AHT) 4,262.00p -1.68%
JD Sports Fashion (JD.) 82.78p -1.59%
SEGRO (SGRO) 686.00p -1.58%
Diploma (DPLM) 4,614.00p -1.54%
AstraZeneca (AZN) 10,570.00p -1.40%
Melrose Industries (MRO) 461.60p -1.39%
Taylor Wimpey (TW.) 118.15p -1.17%