Aetna Inc, the nation’s third largest health insurer, said on Tuesday that it no longer plans to expand its Obamacare business next year. The insurer, which is losing money on the plans it sells in 15 states to individuals on exchanges created under the Affordable Care Act, said it also was looking at whether it should continue to offer the contracts. Aetna said its exchange-based plans for individuals had a pretax operating loss of $200 million in the second quarter, and it projected the loss from that business would exceed $300 million by year-end. It had initially expected to break even on the plans.

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