Last Week's Recap 1. Weekly Market Digest: S&P 500's 9-Week Run, PCE Inflation Hot, Oil Crashes Pushing higher — S&P 500 ninth straight weekly gain; NASDAQ +2.4%, S&P +1.4%, Dow +0.9%. Price pressures — April PCE inflation at 3.8% annual rate (highest since May 2023); core PCE 3.3%. Oil pullback — Crude fell for a second straight week on U.S.-Iran talks, down nearly 10% for the week to ~$88; roughly 16% lower for May. May's momentum — NASDAQ +8.4%, S&P 500 +5.1%, Dow +2.8% in May, though short of April's double-digit gains. GDP downgrade — Q1 GDP revised down to 1.6% (from 2.0%) on weaker consumer spending and investment. Rising expectations — Analysts raised Q2 S&P 500 earnings estimates by 2.5% in April/May, per FactSet; results begin mid-July. East Asian rally — Sout
In option trading, corporate actions refer to major events occurring to listed companies, such as stock splits, reverse splits, special dividends, mergers and acquisitions, etc. These events affect the price, quantity, or structure of the underlying stock, requiring corresponding adjustments to option contracts to maintain the fairness and economic value of the contracts. According to the rules of the Options Clearing Corporation (OCC), option contracts usually undergo standardized adjustments after a corporate action, but some adjustments will cause the option to transform from a standard contract to a non-standard option. Below are the basic principles of option adjustments: Standard Option Contracts: Usually based on 100 shares of the underlying stock, with fixed strike price and expira