Glossary
- Safety cushion
- Sale in the open market
- Saver's Allowance
- Scale for bonds
- Scale for shares
- Schatz future
- SDAX
- Second Quotation Board
- Secondary market
- Secondary purchase
- Sector fund
- Sector index
- Securities
- Securities account
- Securities exchange
- Securities Trading Act
- Seed phase
- Semiannual report (funds)
- Sensitivity (warrants)
- Settlement
- Share
- Share buy-back
- Share price
- Share register
- Shareholder
- Shareholder rights
- Shareholder value
- Shareholders' record
- Shareholder’s right to information
- Sharpe-Ratio
- Shell corporation
- Short position
- Short sale
- SMAX
- SME Growth Market
- SPAC
- Special fund
- Specialised fund
- Specialized fund
- Spot market
- Spread
- Spread certificate
- Squeeze-out
- Standard deviation
- Startup company
- Startup phase
- Steady
- Stock corporation
- Stock cycle
- Stock exchange
- Stock Exchange Act (Börsengesetz)
- Stock exchange monopoly
- Stock index
- Stock market
- Stock market analysis
- Stock market crash
- Stock option
- Stock option plan
- Stock price
- Stock split
- Stop-buy order
- Stop-limit order
- Stop-loss limit
- Stop-loss order
- Stop-market order
- Stop-sell order
- STOXX Europe 50
- STOXX®
- Strike price
- Subscription
- Subscription period
- Subscription rights
- Support buying
- Support Line
- SWAP
- Switch
- Syndicate
- Syndicate bank
- Synthetic bonds
Standard deviation
Measure of the extent to which the price of a security or an index fluctuates around a mean value during a fixed period of time.
Volatility provides a means of measuring a stock's potential for profit or loss independent of market development. It assumes that past values are an indication of future performance. Because the volatility ratio expresses the extent to which the value of a security can expected to change in the future, it plays a particularly important role in the calculation of options prices.
Our glossary explains important financial terms and should not leave any questions unanswered. However, if you are missing a definition, please write to us at redaktion@deutsche-boerse.com. We will then include the term if possible.