A takeover of Anglo American would need to be pitched at more than £30 ($37.6) a share, a higher price than BHP Group offered last week, according to analysts and traders surveyed by Bloomberg. Anglo American shares are trading above the value of BHP’s rebuffed $39-billion takeover proposal, a sign traders are also expecting a higher bid. The premium has increased since Bloomberg News reported over the weekend that BHP is considering making an improved proposal.