- S&P 500
- Sales to Price
- Sample Grade
- Satoshi
- Satoshi Cycle
- Savings Bond
- Scale Order
- ScaleTrader
- Scope I Emissions
- Scope II Emissions
- Scope III Emissions
- SEBI
- SEC
- SEC Climate & ESG Task Force
- Secondary Authorizer
- Secondary Currency
- Secondary Market
- Secondary Market Discount (SMD)
- Section Code and Line Descriptor
- Sector
- Sector Distribution
- Secular Companies
- Secure Login Device Sharing
- Secure Login System
- Secured Bond
- Secured Put/Cash-Secured Put
- Securities Account
- Securities Act of 1933
- Securities and Exchange Commission
- Securities Gross Position Value
- Securitization
- Security
- Security Code Cards
- Security Device
- Security Future
- Security Officer
- Seek
- Segregated Account
- SEHK
- SEK
- SEKHNTL
- Selection Effect
- Self-Regulatory Organization (SRO)
- Sell
- Sell Order
- Selling Group
- SEP Inherited IRA
- SEP-IRA
- Separate Data Services
- Separate Trading Limit Account
- Separately Managed Account
- Serial Issue
- Series EE Bonds
- Series I Bonds
- Series of Options
- Set Liquidate Last
- Settled Cash
- Settlement Currency
- Settlement Date
- Settlement Instruction
- Settlement Price
- SGD
- Shanghai-Hong Kong Stock Connect
- Sharding
- Share
- Share Dilution
- Share Repurchase
- Shareholder
- Shares Short
- Sharpe Ratio
- Shelf Registration
- Shock Absorber
- Short (Short Position)
- Short % of Float
- Short Call
- Short Interest
- Short Interest Change
- Short Interest Tear Sheet
- Short Outstanding Ratio
- Short Put
- Short Sale
- Short Sale Settlement
- Short Sale Terms
- Shortable Shares
- Show Zero Position Rows
- Side
- SIFMA Index
- Simple Moving Average
- Single Stock Future
- Single-Line Complex Positions
- Sinking Funds
- SIPP
- Size Variant Percentage of Volume Strategy
- SLB
- Slow Stochastic Oscillator
- SMA
- Small Business Account
- Small Cap
- Smart Contracts
- SmartRouting
- SMI Ergodic Oscillator
- SMS
- SMS Address
- SMS Alert
- Snap to Market Order
- Snap to Midpoint Order
- Snap to Primary Order
- Snapshot Report (PortfolioAnalyst)
- SNB
- Sniper
- Social Bonds
- Social Enterprises
- Social Sentiment
- Socially Responsible Investing (SRI)
- Soft Commodities
- Soft Dollar Tiers
- Soft Dollars
- Soft Landing
- Sort by Current Page Order
- Sort by Security Type
- Sortino Ratio
- Sound Manager
- Sovereign Names
- SPAN
- Spark Spread
- Special Assessment Bond
- Special Memorandum Account
- Special Tax Bond
- Speculation
- Speculative Grade Bond
- Speculative Position Limit
- Spin-Off
- Spot
- Spot Commodity
- Spot Exchange Rate
- Spot Market
- Spot Month
- Spot/Next
- Spot/Next Roll
- Spread
- Spread Order
- Spreading
- SpreadTrader
- SSF
- SSF/OPT
- Stabilizing Bid
- Stablecoin
- Standard Deviation
- Standard Deviation Channel
- Standby Agreements
- Statement Type
- Sterling
- Stk Opt
- STL
- Stochastic Oscillator
- Stochastic RSI Indicator
- Stock
- Stock Borrow/Loan
- Stock Index Option
- Stock Loan Borrow (SLB) Rates
- Stock Option
- Stock Scanner
- Stock Split
- Stock Yield Enhancement Program
- Stock/ETF Benchmarker
- StockTwits News Feed
- Stop Limit Order
- Stop Logic Functionality
- Stop Order
- Stop with Protection
- Straddle
- Strangle
- Strategy Builder
- Strategy Performance Graph
- Street Book
- Stress Test Report
- Strike
- Strike Price
- STRIPS
- Sub Account
- Submit Date
- Submit Time
- Subscription Agreement
- Subscription Price
- Summary of Economic Projections
- Supply Chain
- Supply-Side Economics
- Support Level
- Sustainable Product Lifecycle
- Swap
- Swap Order
- Swaption
- Sweep-to-Fill Order
- SWIFT/BIC Code
- Swing Index
- Swissie
- Synthetic
- Synthetic Call
- Synthetic Futures Contract
- Synthetic Long Stock
- Synthetic Position
- Synthetic Put
- Synthetic Short Call
- Synthetic Short Put
- Synthetic Short Stock