Trading Glossary U–Z

U

Upthrust — A Wyckoff term for a false breakout above resistance during a distribution phase. Price briefly exceeds a key high, trapping breakout buyers, then reverses sharply. The equivalent in Smart Money Concepts is a Buy-Side Liquidity (BSL) sweep. Upthrusts are most reliable at market tops — when an index or stock makes a marginal new high on declining volume, then reverses, it is often the last high of the entire move.

Upper Circuit / Lower Circuit — NSE's daily price movement limits for individual stocks. A stock hitting its upper circuit (maximum allowed increase) can no longer trade higher that day — only buy orders queue. A lower circuit (maximum allowed decrease) halts further selling for the day. Circuit limits are set at 2%, 5%, 10%, or 20% depending on stock category. Stocks hitting circuits frequently have very low liquidity and are unsuitable for technical trading.

V

Vega — The options Greek measuring sensitivity of an option's price to changes in Implied Volatility (IV). A Vega of 5 means the option gains or loses ₹5 for each 1% change in IV. Long options (buyers) benefit when IV rises (positive Vega). Short options (sellers) benefit when IV falls (negative Vega). IV Crush after earnings results or RBI policy destroys options bought before the event — this is Vega working against the buyer.

VIX (Volatility Index) — See India VIX. Measures expected market volatility over the next 30 days derived from options pricing. Originally developed by CBOE in the USA (where it is called the "Fear Index"), India VIX is NSE's version tracking NIFTY options. VIX and NIFTY typically move inversely — when NIFTY falls sharply, VIX spikes. VIX extremes (above 30) often coincide with major market bottoms.

Volume — The number of shares or contracts traded during a specified period. Volume confirms price moves — rising price on rising volume = strong trend; rising price on falling volume = weakening trend. High volume on a breakout day (1.5–2× 20-day average) dramatically increases the reliability of the breakout. Volume is the most important secondary indicator after price itself.

Volume Profile — A charting technique showing how much volume traded at each price level over a period — displayed as a histogram on the vertical axis. High Volume Nodes (HVN): price levels with heavy trading — act as strong support/resistance. Low Volume Nodes (LVN): price levels with light trading — price moves quickly through these zones. Point of Control (POC): the single price level with the highest traded volume. Used by professional NSE traders for precise support/resistance identification.

VWAP (Volume Weighted Average Price) — The average price of a security weighted by volume, recalculated throughout the trading day. VWAP resets at 9:15 AM IST each morning. Institutional traders use VWAP as their execution benchmark — buying below VWAP and selling above VWAP is considered advantageous. On NSE, VWAP is the most important intraday reference level — price above VWAP is bullish intraday; below VWAP is bearish. VWAP bounces are among the most reliable intraday trade setups on NIFTY.

W

Walk-Forward Testing — A method of strategy validation where the strategy is developed on a portion of historical data (in-sample) and then tested on data it has never seen (out-of-sample). If performance holds up on out-of-sample data, the strategy has genuine edge. If it fails, it was overfit to historical data. Walk-forward testing is the most rigorous validation available before trading a strategy live and is supported on Momentum IQ. Also called forward testing or out-of-sample testing.

Wedge Pattern — A price pattern where two converging trendlines both slope in the same direction (unlike a triangle where one is horizontal). Rising Wedge: both lines slope upward — counterintuitively bearish (prices break DOWN). Falling Wedge: both lines slope downward — counterintuitively bullish (prices break UP). Wedges are reversal patterns that appear at the end of extended moves. The counterintuitive nature of wedges traps traders on the wrong side of the breakout.

Whipsaw — A situation where a trading signal is generated and a position is entered, only for price to immediately reverse — resulting in a quick loss. Whipsaws are most common in sideways, choppy markets where trend-following indicators generate many false signals. The Supertrend indicator is particularly prone to whipsaws when ADX is below 20. Increasing indicator periods or adding a trend filter (ADX above 25) reduces whipsaw frequency.

Wyckoff Method — A comprehensive price action methodology developed by Richard Wyckoff in the early 1900s, describing how institutional "Composite Man" accumulates and distributes positions. The four Wyckoff phases: Accumulation, Markup, Distribution, Markdown — directly parallel the Smart Money Concepts cycle. Wyckoff events (Spring, Upthrust, Sign of Strength, Sign of Weakness) map to SMC's SSL sweep, BSL sweep, BOS bullish, and BOS bearish respectively. Wyckoff is the original framework that SMC is built upon.

Y

Yield — The income generated by an investment expressed as a percentage of its current price. Dividend Yield = Annual Dividend ÷ Share Price × 100. A stock yielding 3% pays annual dividends of 3% of its current market price. High-yield stocks (utilities, PSU companies, established FMCG) are attractive to income investors. Rising yield (from falling price) can sometimes indicate fundamental deterioration rather than improved value — context matters.

Z

Zero Cost Strategy — An options strategy structured to have zero or near-zero net premium outlay. Achieved by simultaneously buying one option and selling another option (of higher premium) to fund the purchase. Example: Buy NIFTY 23,500 CE and sell NIFTY 24,000 CE — the sold call's premium reduces or eliminates the cost of the bought call. Zero cost strategies limit both maximum profit and maximum loss, providing defined risk-reward with no upfront cost. Also called bull call spreads or bear put spreads depending on direction.

This completes the Momentum IQ Trading Glossary — 8 articles covering A to Z with over 150 NSE trading terms explained in plain language. Return to any section using the Knowledge Base navigation. For deeper learning on any term, explore the dedicated articles in our Technical Indicators, Chart Patterns, Candlestick Patterns, Smart Money Concepts, and Risk Management sections.