- Stop Limit Order
- Stop Loss
- Stop Order
- Stop Out
- Strategists
- Sudan Dinars
- Supply And Demand
- Support
- Suriname Guilders
- Surplus
- Sveriges Riksbank
- Swap
- Swaziland Emalangeni
- Swedish Kronor
- Sweeping
- Swing Trading
- Swiss Francs
- Swiss National Bank (SNB)
- Swissy
- Symmetrical Triangle
- Syria Pounds
- Taiwan New Dollars
- Tajikistan Somoni
- Take Profit
- Tank
- Tankan Survey
- Tanzania Shillings
- Technical Analysis
- Technical Indicator
- Term Auction Facility
- Thai Baht
- The Flippening
- Thin
- Thomas Jordan
- Three Black Crows
- Three White Soldiers
- TIBOR
- TIC (Treasury International Capital)
- Tick
- Time-Weighted Average Price (TWAP)
- Timothy Geithner
- TINA: There Is No Alternative
- Tom-Next
- Tomorrow Next
- Tonga Pa’Anga
- Top of Book
- Total Supply
- Trade Balance
- Trading Heavy
- Trading Styles