Brent Topped $100, Yields Hit Their Highest Since 2023, and Treasury’s Bigger Buyback Announcement Failed to Calm the Bond Market.

The pressure kept building from every direction. Stocks fell for a third straight session Wednesday as Brent crude topped $100 for the first time since July and Treasury yields climbed to their highest since November 2023. The striking part: yields rose after the Treasury announced it would buy up to $6 billion of long-dated debt — triple the size of its last long-dated operation — the opposite of what the same policy produced three weeks ago. The Dow shed 405.41 points (-0.77%) to 52,380.66, the S&P fell 0.48% to 7,636.36, the Nasdaq dropped 0.64% to 26,253.34, and the Russell 2000 sank 1.32% to 2,921.23 — small caps taking the worst of it. PPI lands today, CPI Friday.

Here’s what mattered:

🛢 Brent back over $100 — the first time since July

• Brent jumped about 3.4% to roughly $101, breaking $100 for the first time since July, after fresh escalation in the Middle East conflict further stifled flows through the Strait of Hormuz; WTI finished near $96
• The fuel picture underneath is tighter than the headline: EIA projections point to US diesel stockpiles falling below 100 million barrels in September — the lowest since 2003 — as the economy’s “workhorse fuel” faces a price crunch, with retail and wholesale diesel already at all-time highs
• Gasoline prices are the highest ever recorded for this time of year
• Bloomberg reported an Iranian official saying the country is ready for a more intense war and won’t relent

📈 The buyback announcement that didn’t land

• Treasury said it will purchase up to $6 billion of 10-to-20-year Treasuries in Thursday’s operation — triple the size of its last long-dated buyback
• Yields rose anyway: the 10-year climbed to nearly 4.86%, its highest since November 2023
• The contrast with August is stark. On Aug 19, Treasury announced it would double long-duration buybacks from $2bn to at least $4bn; long-dated yields fell as much as 10bp and all three indexes closed higher. This time, a larger operation drew the opposite reaction
• The reaction suggests the pressure extends beyond technical liquidity — though part of Wednesday’s selloff reflected disappointment that $6 billion wasn’t even larger, with some Wall Street estimates running toward $8–10 billion
• Energy and utilities were the only sectors higher; industrials and consumer cyclicals fell most

🤖 The AI financing machine keeps spinning

• Goldman Sachs credit analyst Spencer Rogers wrote in a Wednesday client note that $135 billion of convertible bonds have been issued year-to-date, with just under half of that supply coming from the AI industry — 2026 convertible supply has already surpassed any previous full-year total
• Dell is seeking to raise $4 billion from a bond sale to refinance debt
• The pattern we’ve tracked since July continues: the AI buildout is increasingly debt-financed, and that financing is now a visible share of the corporate credit market
• Meta gained after markets responded positively to its new AI agent, Muse

📊 Wednesday Snapshot (Sept 9)

• Dow: -0.77% → 52,380.66 (-405.41) · S&P 500: -0.48% → 7,636.36 (-37.16) · Nasdaq: -0.64% → 26,253.34 (-168.07) · Russell 2000: -1.32% → 2,921.23
• Third straight decline for all three
• Brent ~+3.4% to roughly $101 (first above $100 since July) · WTI near $96
• 10-yr yield near 4.86% — highest since Nov 2023 — despite Treasury announcing a $6B buyback for Thursday
• Energy/utilities only sectors up · Meta higher on Muse · AI ~half of a record $135B convertible issuance (Goldman)

📅 On deck — the Fed’s last look

All times GMT, scheduled:

• TODAY (Thu Sept 10, 12:30) ⚡: August PPI · Treasury’s $6B buyback operation runs
• FRI (Sept 11, 12:30) ⚡: August CPI + Real Earnings
• WED (Sept 16): FOMC decision (meeting Sept 15–16) — futures price roughly a 60% chance of a hike, while 65 of 93 economists in a Reuters poll still expect a hold

🧠 Bottom line

Three days down, and the market is squeezed from both ends of the same problem. Oil above $100 is the inflation input; a 10-year near 4.86% is the market pricing that risk into rates. What makes Wednesday genuinely unsettling is the bond market’s reaction to Treasury: when Bessent doubled buybacks in August, long-dated yields fell as much as 10bp and stocks rallied; when Treasury announced a $6 billion operation this week — triple the previous long-dated buyback — yields instead climbed to their highest since November 2023. The reaction suggests the pressure extends beyond technical liquidity, although part of the selloff reflected disappointment that the operation wasn’t even larger.

But the timing matters, and it cuts against the panic. Today’s PPI and Friday’s CPI measure August prices — they will not contain this week’s move above $100, the latest gasoline surge, or the September diesel squeeze. Those are forward-looking risks the Fed must weigh, not data it’s about to receive.

That’s the real tension into next week. The August inflation data may look more comfortable than the conditions policymakers actually face when they meet — and the split shows in expectations: futures lean toward a hike at roughly 60%, while 65 of 93 economists surveyed by Reuters still expect a hold.

Brent topped $100, yields reached their highest since late 2023, and Treasury’s bigger buyback announcement failed to calm the bond market. Now PPI and CPI arrive — measuring a month that already feels like the past.