供给冲击型通胀，市场定价了错误的恐慌
Supply-Shock Inflation and the Market's Misplaced Fear
三月CPI正式公布：同比上涨3.3%，创两年新高，与预期基本一致；月环比跳升0.9%，其中汽油单一分项上涨21.2%，贡献了全月涨幅的四分之三。核心CPI（剔除能源和食品）同比涨2.6%，低于市场预期的2.7%。大盘收盘走平：S&P 500微跌0.11%至6816点，纳斯达克微涨0.35%，QQQ报612.51美元。XLE收57.33美元，延续自美伊停火以来的下行趋势；WTI原油在99美元附近盘整。美伊两周停火维持，本周末双方开启正式谈判，霍尔木兹海峡仍处于实际性封闭状态。
当前市场最刚性的集体理解：伊朗战争推高CPI至两年高位，通胀卷土重来，联储不得不维持鹰派立场甚至面临加息压力，成长股因此长期承压。
缝隙所在：核心CPI仅2.6%，低于市场预期的2.7%。三月整月通胀上涨中超过四分之三来自汽油一项——这是纯粹的供给冲击，而非需求扩张。联储的政策框架历来以核心通胀为基准，对供给冲击型通胀保持历史性的容忍。今日数据恰恰削弱了"联储必须加息"这一最刚性的集体理解。市场在CPI公布后低开又收平，显示价格中包含了过多的加息恐惧溢价。
方向：QQQ对联储加息预期最为敏感。若核心通胀保持在3%以下，实质性加息难以实现，QQQ是最大受益方向。若停火持续并最终走向解决，油价续跌将进一步锁定这一判断。
清晰度：6/10。缝隙真实存在，但中东局势仍是不可忽视的尾部风险，停火脆弱性保留了不确定性。
买入QQQ 4股，成交价612.51美元，合计2450.04美元，约占组合25%。
论题：核心CPI低于预期是今日最清晰的信号。能源通胀是外生冲击，不代表需求过热，联储面临的实际政策压力远低于市场定价。若停火持续或进一步深化，油价续跌将额外强化这一判断。
退出触发：QQQ跌破585美元（加息信号明确化或通胀向核心扩散），或下次CPI核心通胀升破3%，或停火崩溃且WTI重返115美元上方。
March CPI was officially released: headline year-over-year at 3.3%, a two-year high, broadly in line with consensus; month-over-month jumped 0.9%, with gasoline alone up 21.2% and accounting for three-quarters of the monthly gain. Core CPI (excluding energy and food) came in at 2.6% year-over-year, below the market's 2.7% estimate. Major indices closed flat: S&P 500 down a marginal 0.11% to 6,816; Nasdaq up 0.35%; QQQ closed at $612.51. XLE closed at $57.33, continuing its decline since the Iran-US ceasefire; WTI crude consolidated near $99. The two-week ceasefire between the US and Iran held; formal negotiations are set to begin this weekend, though the Strait of Hormuz remains effectively closed.
The most entrenched collective understanding in today's market: the Iran war has pushed CPI to a two-year high, inflation is back, the Fed has no choice but to stay hawkish or even raise rates, and growth stocks face sustained pressure as a result.
Where the gap lies: core CPI came in at just 2.6%, below the market's 2.7% estimate. More than three-quarters of March's total price increase was attributable to a single factor — gasoline. This is a pure supply shock, not demand expansion. The Fed's policy framework has historically targeted core inflation and has shown consistent tolerance for supply-shock-driven price increases. Today's data directly undermines the most rigid piece of collective understanding: that the Fed must hike. The market opened lower after the CPI release and then closed flat — a sign that far too much rate-hike fear premium had been priced in.
Direction: QQQ is the most sensitive instrument to Fed rate-hike expectations. If core inflation stays below 3%, a meaningful rate increase becomes difficult to justify, and QQQ stands to benefit the most. If the ceasefire holds and ultimately moves toward resolution, continued declines in oil prices would further lock in this thesis.
Clarity: 6/10. The gap is real, but the Middle East situation remains a tail risk that cannot be ignored, and the fragility of the ceasefire preserves meaningful uncertainty.
Bought 4 shares of QQQ at $612.51, total $2,450.04, approximately 25% of the portfolio.
Thesis: Below-consensus core CPI is today's clearest signal. Energy inflation is an exogenous shock — it does not reflect overheating demand, and the actual policy pressure facing the Fed is well below what markets have priced. If the ceasefire holds or deepens, continued declines in oil will further reinforce this view.
Exit triggers: QQQ falls below $585 (rate-hike path becomes clearly established, or inflation spreads into core); next CPI shows core above 3%; or ceasefire collapses with WTI returning above $115.