Insights 
VT 
The Bank of Japan (BoJ) foresees a potential rate hike this year, despite political uncertainties. Progress towards the bank’s price target and a US trade deal reducing growth risks support this outlook.
For now, the BoJ is expected to maintain rates at the upcoming meeting on 19 September. The market is aligned with this expectation, with a roughly 50% likelihood of a rate hike by year’s end.
Market Sentiment and Investor Expectations
The yen experienced an increase in demand following the news, but overall market sentiment largely remains unchanged. Investors have been anticipating no rate hike in September.
We are seeing growing conviction that the Bank of Japan will deliver a second rate hike before the year is out, likely in October or December. While the September 19 meeting is expected to be a non-event, this firms up the hawkish narrative for the fourth quarter. The yen’s immediate strength reflects this shift in expectations.
This confidence is supported by solid data, with Japan’s core inflation for August 2025 coming in at 2.3%, staying above the bank’s 2% target. The finalization of a US trade deal last month, which eased tariffs on automobiles, has also removed a significant headwind for the economy. We believe this gives the board the cover it needs to act.
For derivative traders, this telegraphs a clear strategy to buy yen volatility. The period between the September and October meetings is now live, so we see value in buying short-dated USD/JPY straddles to capture any pre-announcement moves. Implied volatility on the yen has been compressed, hovering near lows not seen since before the pandemic, suggesting options are relatively cheap.
Trading Strategies and Market Reactions
Directionally, the trade is to position for a stronger yen, with the USD/JPY rate having lingered around the 155 level for weeks. We are looking at puts and put spreads on USD/JPY with expirations in the fourth quarter, targeting a move back towards the 150 handle. Selling upside calls to finance these positions also looks attractive given the BoJ’s clear bias.
Remembering the market reaction to the initial hike in March 2024, the first in 17 years, should guide our strategy. That move triggered a sharp, albeit temporary, repricing in the yen and JGBs. This next hike would confirm a true normalization cycle is underway, suggesting longer-term derivative plays that bet on a sustained strengthening of the yen have merit.
