Portfolio managers boosted their bullish bets on Europe’s benchmark natural gas price to the highest level in six months, expecting continued volatility as Europe is now beginning to stockpile supplies for the next winter. In the latest reporting week to April 26, the net long position – the difference between bullish and bearish bets – rose to the highest level since October 2023, just ahead of the 2023/2024 heating season, according to Intercontinental Exchange data cited by Bloomberg on Wednesday. The week to April…