This glossary covers key terms used in financial charting, data analysis, risk measurement, and the Quadesto platform. Whether you are building yield curves, analysing options surfaces, or computing portfolio risk metrics, these definitions provide concise, practitioner-oriented explanations of the concepts behind the charts.
A price chart that displays the open, high, low, and close for each time period as a rectangular body with upper and lower wicks. The body is filled or hollow to indicate whether the close was below or above the open. Quadesto renders candlestick charts automatically when OHLC data is detected in your dataset.
A variation of the candlestick chart that uses horizontal tick marks on a vertical bar to represent open and close prices, with the bar itself spanning the high-to-low range. OHLC bars are common in commodity and futures markets. Quadesto supports OHLC bar rendering as an alternative to candlestick display.
A line chart plotting the yields of bonds with equal credit quality but differing maturities, typically US Treasuries from 1-month to 30-year tenors. The shape of the curve — normal, inverted, or flat — signals market expectations about future interest rates and economic growth. Quadesto uses monotone convex interpolation to construct smooth, arbitrage-free yield curves.
A three-dimensional plot showing implied volatility across strike prices (x-axis) and expiration dates (y-axis). The surface reveals how the market prices options at different moneyness levels and tenors. Quadesto constructs volatility surfaces using SVI calibration to ensure a no-arbitrage parameterization across the grid.
A U-shaped curve of implied volatility plotted against strike price for options sharing the same expiration. The "smile" indicates that out-of-the-money puts and calls trade at higher implied volatilities than at-the-money options. This pattern reflects market demand for tail-risk hedging and contradicts the constant-volatility assumption in Black-Scholes.
A chart of at-the-money implied volatility plotted across expiration dates, showing how expected volatility varies by time horizon. A steep term structure suggests near-term uncertainty; a flat or inverted structure suggests the market prices risk as constant or front-loaded. Quadesto computes term structure slices directly from options chain data.
A chart of forward prices or forward rates plotted against future delivery or settlement dates. In commodities, the forward curve reveals contango or backwardation. In fixed income, the forward rate curve is derived from the spot curve via bootstrapping and indicates market-implied future short rates.
A time-series chart that plots the percentage decline from a running peak value, showing the depth and duration of losses over time. Drawdown charts are essential for evaluating risk and recovery behaviour in portfolio or strategy analysis. Quadesto computes running-maximum drawdown as a derived metric from any cumulative return series.
A line chart showing the cumulative value of an investment or trading strategy over time, starting from an initial capital base. Equity curves make it easy to assess compounding growth, volatility clustering, and the timing of drawdowns. Quadesto generates equity curves with optional log-scale display for long time horizons.
A matrix-style visualization where individual cell values are represented by colour intensity. In finance, heatmaps are used for correlation matrices, sector performance grids, and returns-by-period tables. Quadesto supports heatmaps with diverging colour scales centred on zero for intuitive positive/negative interpretation.
A space-filling chart that displays hierarchical data as nested rectangles, where each rectangle's area is proportional to a quantitative variable such as market capitalisation. Treemaps are widely used for sector-weighted portfolio breakdowns and market-cap-weighted index composition. Colour can encode a second variable such as daily return.
A chart that shows how an initial value is increased or decreased by a series of intermediate positive or negative values, arriving at a final total. Waterfall charts are common in earnings bridge analyses, revenue decomposition, and attribution reporting. Each bar floats from the cumulative running total of prior bars.
The arithmetic mean of a security's price over a defined lookback period, recalculated at each time step. Common periods include 20-day, 50-day, and 200-day windows. Crossovers between shorter and longer SMAs are used as trend-following signals. Quadesto computes SMAs as derived columns that can be overlaid on any price chart.
A weighted moving average that places greater weight on recent prices, making it more responsive to new information than the SMA. The weighting factor decays exponentially with age. EMAs are the basis for many composite indicators including MACD. Quadesto supports EMA computation with user-configurable span or decay factor.
A momentum oscillator that measures the speed and magnitude of recent price changes on a 0-to-100 scale. Readings above 70 are conventionally interpreted as overbought; readings below 30 as oversold. RSI is calculated using the ratio of average gains to average losses over a lookback window, typically 14 periods.
A trend-following momentum indicator computed as the difference between a 12-period EMA and a 26-period EMA, with a 9-period EMA of the result plotted as a signal line. The MACD histogram shows the gap between the MACD line and the signal line. Crossovers and divergences from price are used to identify trend changes.
A volatility envelope plotted two standard deviations above and below a simple moving average, typically using a 20-period window. The bands widen when volatility increases and narrow during low-volatility consolidations. Price touching or exceeding the bands does not constitute a standalone buy or sell signal but indicates relative high or low levels.
A volatility indicator that measures the average range of price movement per period, accounting for gaps between sessions. True range is the greatest of: current high minus current low, absolute value of current high minus previous close, or absolute value of current low minus previous close. ATR is commonly used for position sizing and stop-loss placement.
The average price of a security weighted by volume traded at each price level, typically calculated intraday from market open. VWAP serves as a benchmark for execution quality — institutional traders aim to execute at or below VWAP. It resets at the start of each trading session unless an anchored variant is used.
A momentum indicator comparing a security's closing price to its price range over a lookback period, producing a %K line scaled from 0 to 100. A %D line (a moving average of %K) is plotted alongside. Readings above 80 suggest overbought conditions; below 20 suggest oversold. It is most effective in range-bound markets.
The market's forecast of the magnitude of future price moves, extracted from the price of an option using a pricing model such as Black-Scholes. Higher implied volatility means higher option premiums. Unlike historical volatility, implied volatility is forward-looking and reflects supply-demand dynamics in the options market. Quadesto extracts IV from options chain data for surface and smile visualizations.
The foundational options pricing model developed by Fischer Black and Myron Scholes, providing a closed-form solution for European option prices given spot price, strike, time to expiration, risk-free rate, and volatility. While real markets deviate from its assumptions (constant volatility, no dividends, continuous trading), Black-Scholes remains the standard reference framework for options pricing and Greeks computation.
The first-order Greek measuring the rate of change of an option's price with respect to a one-unit change in the underlying asset's price. Delta ranges from 0 to 1 for calls and -1 to 0 for puts. It is commonly used as a proxy for the probability that an option will expire in the money and as the hedge ratio for delta-neutral strategies.
The second-order Greek measuring the rate of change of delta with respect to the underlying price. High gamma means delta changes rapidly, creating larger hedging adjustments. Gamma is highest for at-the-money options near expiration. Quadesto displays gamma exposure across strikes to help visualize dealer hedging pressure.
The Greek measuring the rate of time decay in an option's value, expressed as the dollar amount lost per day assuming all other factors remain constant. Theta is negative for long option positions and accelerates as expiration approaches. Short premium strategies profit from theta decay, making it a critical metric for income-oriented options traders.
The Greek measuring an option's sensitivity to a one-percentage-point change in implied volatility. Vega is highest for at-the-money, longer-dated options. A positive vega position benefits from rising implied volatility. Despite not being a Greek letter, vega is universally included in the standard set of options risk sensitivities.
The Greek measuring an option's sensitivity to changes in the risk-free interest rate. Rho is typically small relative to other Greeks for short-dated options but becomes significant for long-dated options such as LEAPS. Rising rates increase call values and decrease put values, all else being equal.
Stochastic Volatility Inspired (SVI) parameterization is a method for fitting implied volatility across strikes to produce a smooth, arbitrage-free volatility smile. The SVI model uses five parameters to describe the total implied variance as a function of log-moneyness. Quadesto applies SVI calibration when constructing volatility surfaces to ensure consistency across the strike dimension.
The ratio of traded put option volume to call option volume, used as a sentiment indicator. A high put/call ratio suggests bearish positioning or hedging demand; a low ratio suggests bullish sentiment. Extreme readings are sometimes interpreted as contrarian signals. Quadesto's put/call ratio tool tracks this metric across equity indices with historical context.
A tabular display of all available option contracts for a given underlying asset, organized by expiration date and strike price, showing bid, ask, volume, open interest, and implied volatility for each contract. The options chain is the primary interface for selecting and analysing individual contracts. Quadesto ingests options chain data to power volatility surfaces and Greeks analysis.
An options strategy combining a long out-of-the-money call and a short out-of-the-money put (or vice versa) at the same expiration. As a market indicator, the risk-reversal spread — the implied volatility difference between equidistant OTM calls and puts — measures directional skew. A steep negative risk reversal indicates strong demand for downside protection.
A plot of bond yields against their maturities for a given issuer or credit quality tier, most commonly US Treasury securities. The yield curve is the single most important chart in fixed income, conveying expectations about monetary policy, inflation, and economic growth. Quadesto constructs yield curves using monotone convex interpolation to produce smooth, arbitrage-free term structures.
The difference in yield between two bonds or two points on a yield curve, typically expressed in basis points. Common spreads include the 2s10s (10-year minus 2-year Treasury yield), which is a widely watched recession indicator. Quadesto computes yield spreads as derived columns and tracks them over time as dedicated time-series charts.
The yield difference between a corporate bond and a risk-free government bond of the same maturity, compensating the investor for default risk. Wider credit spreads indicate higher perceived credit risk or broader market stress. Quadesto's credit spreads tool visualizes investment-grade and high-yield spreads against Treasury benchmarks with historical context.
The yield spread of a bond over the Treasury curve after removing the value of any embedded options such as call or prepayment provisions. OAS provides a cleaner measure of credit compensation than nominal spread for callable bonds and mortgage-backed securities. It is computed via Monte Carlo simulation of interest-rate paths.
A measure of a bond's sensitivity to interest rate changes, expressed in years. Modified duration estimates the percentage price change for a one-percentage-point change in yield. Macaulay duration represents the weighted-average time to receive cash flows. Duration is the primary tool for managing interest-rate risk in fixed income portfolios.
The second derivative of a bond's price with respect to yield, measuring the curvature of the price-yield relationship. Duration provides a linear approximation of price sensitivity; convexity captures the error in that approximation for larger yield moves. Bonds with higher convexity benefit more from falling rates and lose less from rising rates, all else equal.
The difference between the yield on a nominal Treasury bond and a Treasury Inflation-Protected Security (TIPS) of the same maturity. The breakeven rate represents the inflation rate at which an investor would be indifferent between holding the nominal bond and the TIPS. Quadesto's breakevens tool charts this metric across maturities and over time.
US government bonds whose principal adjusts with the Consumer Price Index, providing protection against inflation. TIPS pay a fixed coupon rate on the inflation-adjusted principal. Real yields on TIPS reflect the market's required real return and are a key input to breakeven inflation calculations and inflation-linked asset valuation.
A bond that pays no periodic interest and is issued at a discount to its face value, with the return derived entirely from the difference between purchase price and par value at maturity. Zero-coupon bonds have duration equal to their maturity, making them highly sensitive to interest-rate changes. They are the building blocks of bootstrapped yield curves.
A variation of the Sharpe ratio that divides excess return by downside deviation rather than total standard deviation, penalising only negative volatility. The Sortino ratio provides a better measure of risk-adjusted performance for asymmetric return distributions. A higher Sortino ratio indicates better compensation per unit of harmful volatility.
The largest peak-to-trough decline in portfolio value over a given period, expressed as a percentage. Maximum drawdown measures the worst-case loss an investor would have experienced and is a critical input to risk budgeting and strategy evaluation. Quadesto computes and visualizes drawdowns as a standard derived metric for any return series.
A statistical estimate of the maximum expected loss over a specified time horizon at a given confidence level. For example, a one-day 95% VaR of 2% means there is a 5% probability that the portfolio will lose more than 2% in a single day. VaR does not describe the magnitude of losses beyond the confidence threshold.
Also known as Conditional VaR (CVaR), expected shortfall measures the average loss in the tail beyond the VaR threshold. It addresses VaR's primary limitation by quantifying the severity of extreme losses, not just their probability. Expected shortfall is a coherent risk measure and has been adopted by Basel III as the regulatory standard for market risk capital.
A measure of a security's sensitivity to market movements, calculated as the covariance of the security's returns with the market's returns divided by the variance of the market's returns. A beta of 1.0 means the security moves in line with the market; above 1.0 indicates higher systematic risk; below 1.0 indicates lower systematic risk.
A statistical measure ranging from -1 to +1 that describes the linear relationship between two return series. Correlation is the foundation of diversification — combining assets with low or negative correlation reduces portfolio volatility. Quadesto renders correlation matrices as interactive heatmaps for multi-asset analysis.
The standard deviation of returns scaled to an annual basis, typically by multiplying daily standard deviation by the square root of 252 (the approximate number of trading days per year). Annualised volatility is the most common measure of total risk and is the denominator in the Sharpe ratio. It treats upside and downside moves symmetrically.
A curve-fitting technique that preserves the monotonicity and convexity of the input data, avoiding the spurious oscillations that cubic splines can introduce. In fixed income, monotone convex interpolation is used to construct discount curves and yield curves that do not produce negative forward rates. Quadesto applies this method by default for all yield-curve construction.
A sequential method for constructing a zero-coupon yield curve from the prices of coupon-bearing instruments. Starting from the shortest maturity, each successive zero rate is solved for using the previously determined rates to discount earlier cash flows. Bootstrapping is the standard technique for deriving spot rates from par rates or swap rates in fixed income analytics.
An acronym for Open, High, Low, Close, Volume — the five standard fields in a financial price bar. OHLCV data is the fundamental input for candlestick charts, bar charts, and most technical indicators. Quadesto auto-detects OHLCV column structures during data import and selects appropriate chart types automatically.
A sequence of data points indexed by time, forming the basis of nearly all financial data analysis. Time-series data requires careful handling of irregular intervals, missing observations, time-zone alignment, and frequency conversion. Quadesto treats time series as a first-class data type with built-in support for resampling, alignment, and rolling-window computations.
A synthetic price series constructed by splicing successive futures contracts together, typically at or near each contract's expiration date. The splicing process must account for price gaps between contracts using back-adjustment, ratio adjustment, or calendar-weighted blending. Continuous futures are essential for applying technical analysis and backtesting strategies on futures markets.
The return component arising from rolling a futures position from an expiring contract to the next contract. When the forward curve is in backwardation, roll yield is positive because the new contract is cheaper. When the curve is in contango, roll yield is negative. Roll yield is a significant driver of total return in commodity futures and VIX futures strategies.
A framework for deriving market-implied probabilities of Federal Reserve interest-rate decisions from Fed Funds futures prices. Each futures contract implies an average effective Fed Funds rate for its delivery month, and the probability of a rate change is extracted by comparing the implied rate to the current target. Quadesto's FedWatch tool implements this methodology with live futures data.
Quadesto implements the methodology behind every term in this glossary — from monotone convex yield curves to SVI-calibrated volatility surfaces. Connect your data and get publication-ready charts in minutes.
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