〔Day Digest〕Core CPI's +0.3% m/m Surge Sends Reported December Hike Odds to 88-100%, but 25bp vs. 50bp Is the Fault Line

0. Weekly Arc

• **[ESCALATED] Direction is no longer the debate:** October core CPI rose +0.3% m/m, above expectations, while the three-month annualized core rate accelerated to 3.7% from 1.6% through July; reported December hike odds reached 88% in one snapshot and 100% in another ^[1][2][3][4].
• **[NEW] Source note:** The packet mixes headline-only Google News and Google News aggregation with fuller reports, so the detailed official statements and figures below rely on the fuller items ^[1][2][5]. The odds snapshots also differ in attribution: 88% is tied to CME FedWatch, while the 100% headline provides no comparable instrument detail, so 88-100% is treated as a band rather than a point ^[3][4].

1. Inflation Trigger

• **[NEW] Core CPI:** October core CPI rose +0.3% m/m, above market expectations; its three-month annualized rate reached 3.7%, up from 1.6% in the three months through July ^[1][2].
• **[ESCALATED] Sticky zone:** Philadelphia Fed President Anna Paulson said price pressure remained “still very real” and core inflation was “stuck” between 2.5% and 3%, citing tariffs, higher energy costs and the data-center construction boom as continuing price pressures ^[2].
• **[NEW] Policy problem:** Royal Bank of Canada economists said supply-driven inflation may not respond to further rate hikes; they pointed to energy spillovers, high freight costs supporting goods prices and accelerating services inflation ^[6].
• **[NEW] Political tension:** White House National Economic Council Director Hassett called the CPI report “disappointing” even as the data strengthened rate-hike expectations ^[5].

2. Policy Reaction Function

• **[ONGOING] Starting point:** The Fed held the target range at 3.75%-4% by a 10-2 vote last month, after a unanimous 25bp increase in September ^[2].
• **[ESCALATED] Faster path:** Federal Reserve Governor Christopher Waller said he would support a 25bp December increase and 50bp if necessary; Dallas Fed President Lori Logan said the Fed needed at least two more 25bp increases ^[2][5].
• **[ONGOING] Gradual path:** Philadelphia Fed President Anna Paulson favored further gradual increases for now but said the Fed would act more aggressively if inflation deteriorated ^[2][5][7].
• **[NEW] Two-speed framework:** Wall Street Journal chief economics writer Nick Timiraos framed the choice as another two to three 25bp moves versus consecutive increases or one 50bp move, while warning that faster action could clash with slowing AI investment and tighter financial conditions ^[1].
• **[NEW] Forecast shift:** Goldman expects 25bp increases in December and March 2027, compared with its previous expectation of only a December increase ^[8][5].

3. Market Transmission

• **[NEW] Treasuries:** Bonds suffered their biggest day of selling since September and their only notable selling day since the mid-October rate downtrend began, according to Mortgage News Daily ^[9]. Commonwealth Bank rates strategist Jack Chambers said the 10-year Treasury yield had room to rise as stronger economic activity and Fed expectations dominated, while a sharp oil-price decline could interrupt the rise over the next few weeks ^[10].
• **[NEW] Asia:** Asian stocks and bonds were poised to fall after hotter-than-expected US inflation drove Wall Street losses and aggressive Fed-hike bets, while Asian bond yields rose ^[11][12]. Asian equities diverged and Bitcoin dropped below $73,500 ^[13].
• **[ESCALATED] Pricing:** Reported December hike odds are 88% in the CME FedWatch snapshot and 100% in a separate headline that lacks comparable instrument detail; the range is more defensible than either point ^[3][4]. Caixin described a December hike as “basically locked” ^[14].
• **[NEW] Inflation derivatives:** Kalshi communications head Elisabeth Diana said the platform plans to launch dated US CPI and core-inflation futures on December 8 for institutional investors, supplementing the perpetual contracts it began offering earlier in the year ^[15].
• **[NEW] Credit channel:** Auto Finance News said Fed rate increases could raise floorplan costs for RV dealers ^[16].

4. Contrarian and Tail Risks

• **[NEW] Equity tail:** Renaissance Macro Research chief economist Neil Dutta warned that the Fed remains too optimistic about containing inflation and that going too far in the inflation fight is becoming a more serious threat to the 2027 stock market, even as investors question AI-trade durability ^[17].
• **[ONGOING] 50bp dissent:** Daiichi Life Research Institute economist Seiji Katsurahata said December 50bp expectations were excessive; he expected pricing to stabilize around a 25bp hike, allowing near-term Treasury yields to normalize and limiting dollar upside ^[18].
• **[NEW] Two-sided risk:** Nick Timiraos's framework pairs persistent, broadening inflation, which argues for faster action, with slowing AI investment and tighter financial conditions, which raise the risk of over-tightening ^[1].
• **[NEW] Decision test:** A 25bp December move without a faster follow-through path would support the gradual camp, while 50bp or repeated 25bp moves would validate the faster-hike camp at the December 8-9 meeting ^[1][18][5].
• **[ONGOING] Bond-storm counterweight:** Reuters framed the 2026 bond storm as potentially passing while warning that Fed-related pressure would linger ^[19]. Commonwealth Bank's Jack Chambers allowed that an oil-price decline could interrupt the yield rise, and Daiichi Life's Seiji Katsurahata expected yields to normalize once market pricing settled on 25bp ^[10][18].