Oil Prices Plunge Over 7% in a Single Day as U.S. Treasury Yields Extend Monthly Decline
nashnova research
WTI crude futures fell as much as 7.5% on Monday as Middle East negotiation hopes squeezed geopolitical risk premium; the oil sell-off eased inflation fears, pushing the 10-year Treasury yield below 4.88% and extending the bond market's strongest monthly rally in over two years.
Why did oil prices plunge?
The trigger was diplomatic: markets priced in renewed hope for Middle East war negotiations, compressing the geopolitical risk premium — the extra "insurance cost" baked into oil for war uncertainty.
WTI futures dropped as much as 7.5%; benchmark crude fell over 7% on the day.
This means → the market is marking down the probability of a Middle East escalation, and the portion of oil prices propped up by "war premium" is being squeezed out.
Oil fell — why did Treasuries rally?
The logic chain: oil down → inflation pressure eases → bonds gain value. Oil is a key inflation input; when it drops, the market's inflation anxiety loosens with it.
The 10-year Treasury yield fell as much as 5 basis points, dipping below 4.88% — the lowest since September 10.
The 30-year yield fell even more, by 4 to 6 basis points. In plain terms = longer-dated bonds are more sensitive to inflation expectations, so when oil drops, the long end reacts hardest.
What else is driving the bond rally?
Deutsche Bank rates strategist Steven Zeng noted that over the past month, the historic negative correlation between bonds and equities appears to have returned — investors are buying Treasuries to hedge equity downside.
This means → this Treasury rally is not just "oil fell so bonds rose." It also reflects safe-haven capital rotating out of stocks and into bonds.
Why did the short end lag the long end?
HSBC U.S. rates strategist Dhiraj Narula attributed the muted short-end rally to a continuation of the yield-curve steepening — the widening gap between short- and long-term rates — that followed last week's Fed meeting.
In plain terms = the Fed held rates steady last week, anchoring the short end; the long end is driven more by market expectations, so it moved further.
Narula added that the long-end decline also reflects market bets that the Treasury Department may cut long-dated bond supply — less expected supply pushes prices up and yields down.
What comes next from the Fed?
The Fed restarted rate hikes in September, precisely because rising oil prices had accelerated inflation.
Markets still price in at least two more hikes by the end of next year, but over the past month expectations for cumulative tightening have edged lower.
This means → if oil prices stay depressed, the case for further hikes weakens — but it is too early to call the turn. Wednesday's Treasury quarterly borrowing strategy statement is the next key signal.
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