New Federal Reserve Chair Warsh's hawkish signals have triggered significant volatility in the bond market. Traders have swiftly repriced the interest rate hike path, leading to record-breaking trading volumes in US Treasury futures.

According to the latest data released by the Chicago Mercantile Exchange (CME) on Thursday, over 500,000 contracts changed hands in a single day, approximately four times the 20-day average, setting a new historical record. Traders have rushed to establish positions betting on a rate hike at the Fed's next meeting in July. Concurrently, the market-implied probability of a July hike has surged from near zero to around 50%, a remarkably swift reversal in expectations.

This trading frenzy directly reflects the market's reassessment of the monetary policy outlook. Christophe Boucher, Chief Investment Officer at ABN AMRO Investment Solutions, noted, "Warsh barely mentioned employment, placing price stability at the core of his narrative framework. The start of his tenure suggests the Federal Reserve will focus more intently on inflation."

The Treasury market has also digested this shift—the yield on the 10-year US Treasury note dipped by up to 4 basis points to 4.45% on Thursday, partially recovering from its post-Fed-decision decline on Wednesday.

Warsh's Debut Signals Hawkish Stance, Rate Hike Expectations Surge

Warsh made his official debut as Federal Reserve Chair on Wednesday, delivering a notably hawkish speech that emphasized his primary commitment to price stability and his dedication to returning inflation to the 2% target. This statement quickly reshaped market expectations for the future policy path.

Prior to this, swap market pricing indicated the probability of a July hike was close to zero. Following Warsh's remarks, that probability jumped sharply to around 50%, equivalent to a coin-toss scenario. The market has thus shifted from almost entirely ruling out a hike to holding a high degree of uncertainty regarding the outcome of the July 28-29 meeting.

August Federal Funds Futures Become Central Battleground

CME data shows that since Wednesday, open interest for August federal funds futures has increased by approximately 67,000 contracts, accounting for about 15% of the total open interest for that contract, a significant single-day rise.

As the August federal funds futures contract expires before the September 16 policy meeting, its heightened activity directly signals that traders are positioning for the Fed to potentially raise rates as early as July. Participants include hedge funds and asset management firms, using these contracts both to hedge interest rate risk and for directional bets on policy moves. Since such trades are typically conducted anonymously, it is difficult for outsiders to track the specific institutions or ultimate beneficiaries of the derivatives.

It is worth noting that total open interest for federal funds futures stands at about 1.8 million contracts, still below the one-year average of 2.2 million contracts. Data from the US Commodity Futures Trading Commission (CFTC) indicates that overall market positioning is not yet saturated.

Simultaneously, a directional reversal is occurring in the Secured Overnight Financing Rate (SOFR) futures market, which is highly sensitive to Fed policy—long positions previously betting on rate cuts are being rapidly unwound. Data shows that open interest for the June 2026 SOFR futures contract decreased by about 90,000 contracts in a single day, indicating a systematic dismantling of the previously prevalent dovish rate-cut bets in the market.

This movement aligns with the buildup of short positions in August federal funds futures, together sketching a picture of a broader shift in market sentiment: traders are moving from pricing in rate cuts to pricing in rate hikes.

Institutional Analysis: July Outcome Remains Uncertain, Risks Skew Toward Earlier Action

Major institutions are rapidly evolving their judgments regarding the upcoming rate hike path. BNP Paribas maintains its baseline forecast that the hiking cycle will commence in December, but it has explicitly stated that risks are tilting toward earlier action.

"Policymakers' stance appears to be shifting rapidly, and we highlight that the risk of earlier action is rising, with every meeting—including July's—being a live one," wrote BNP Paribas economists James Egelhof and Guneet Dhingra in a research note.

This language signifies that the market's previous consensus expectation for rate cuts within the year has effectively dissolved. Investors now need to reassess their risk exposures across the entire interest rate curve.