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Japan’s Stock Investors Hedge Against More Drops as War Persists

Published on 26/03/2026 04:56 AM

Investors in Japanese equities are hedging against more downside as the war in the Middle East drags on.

The Topix index has shed more than 7% since the US-Israeli attack on Iran, making it one of the worst hit markets in the world. Since the start of the war in late February, Japan’s stock market has been on a roller coaster, lurching between sharp gains and losses. Stocks surged again on Wednesday, closing 2.6% higher, after signs the US was trying to de-escalate the conflict. 

Amid the volatility, investors have been using short selling and options to position for sharp drops. Here are three charts showing bearish signs in the market.

Short-Selling Ratio

The ratio of short-selling to overall daily trading has increased noticeably with the 20-day moving average rising to around 40%, the highest in almost a year. 

Hiroki Takei, a strategist at Resona Holdings, said short covering usually creates future buying pressure, but with the level of uncertainty remaining high, he thinks it is unlikely it will “drive a significant rally in Japanese equities.”

Put Demand

Demand has jumped for index put options — contracts that get more valuable when prices fall. Particularly those deep out-of-the-money have seen a lot of demand, suggesting that investors are positioning for sharp falls. Implied volatility for one-month, five-delta Nikkei 225 index put options has surged to around 60%, up from around 40% before the Iran attack.

Margin Sell 

Margin selling positions have increased two weeks in a row as of March 19, according to data released by the TSE on Tuesday. That suggests retail investors are starting to turn bearish as the war continues. 

©2026 Bloomberg L.P.

This article was generated from an automated news agency feed without modifications to text.

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