S S&P 500 Sarbanes-Oxley Act Scale Order Scripophily Seat Secondary Distribution Secondary Market Secure Financial Transaction Infrastructure (SFTI) Securities and Exchange Commission (SEC) Securities Industry Association (SIA) Securities Investor Protection Corporation (SIPC) Self-Regulation Self-Regulatory Organization (SRO) Sell Side Seller's Option Serial Bond Settlement Shares Outstanding Short Covering Short Position Short Sale Sinking Fund Slow Market Slow Quote Sole Proprietorship Specialist Specialist Algorithm Specialist Display Book Specialist Go-Along Specialist Interest File Speculation Spin-Off Split Stock Stock Dividend Stock Exchange Stock Index Stock Index Futures Stock Split Stock Watch Stockholder of Record Stop Order Street Name Strike Price Structured Product Swapping Sweep Syndicate