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- The cost of protecting against a stock-market sell-off hasn't been this low since 2008, per Bank of America.
- High interest rates and low equity volatility are driving down the price of S&P 500 put options.
- "Since our data began in 2008, it has never cost less to protect against an S&P drawdown in the next 12 months," the bank said.
Investors looking to hedge against US stock-market weakness are in for a bargain.
Put options on the S&P 500 — which are used to hedge losses in the index over the coming 12 months — haven't been this cheap since 2008, according to Bank of America.