Hook — a price moves even when you do nothing

A beginner sees a share priced at ₹100 in the morning and ₹104 by afternoon, and immediately asks who pushed it up. There is rarely a single person or single explanation that can be proven from the chart alone. Prices arise from buying and selling activity under the market's trading rules. Participants continually revise what they are willing to pay or accept because their needs, expectations and available information change. A quote can move even without every investor agreeing on a new value. Sometimes a headline matters; sometimes liquidity or the size of available orders changes. The key beginner question is not 'Which secret force controls the candle?' but 'Which actual transactions or available quotes does the chart summarize, and what can we not infer from it?'

Concept in depth — demand is willingness at a price

Demand is not merely the number of people interested in an asset. It describes how much participants are willing and able to buy under particular terms. One person interested at ₹90 is not necessarily an active buyer at ₹110. Supply likewise depends on how much holders offer at different prices and conditions. A new price can emerge when compatible buy and sell interest meets, but market structures differ. A fast price rise does not prove a company's fundamental value rose by the same percentage, just as a sharp decline does not reveal whether the entire business lost that fraction of its physical assets. A price is a transaction or quote under prevailing conditions, not a complete company valuation report or a forecast.

Demand

When more buyers want an asset at a given price than sellers offer, buyers may raise bids; it is not a fixed law that every order moves the quote. Desi example: 20 customers want 10 mango boxes in a mandi. ILLUSTRATIVE ONLY — worked example: an asking price moves from ₹100 to ₹105, a ₹5 or 5% rise; buyers can also walk away. Source

Supply

When more sellers compete for fewer buyers, sellers may lower offers. Desi example: three farmers bring 30 tomato crates but only 12 crates have buyers. ILLUSTRATIVE ONLY — worked example: a quoted crate falls from ₹200 to ₹180: ₹20, or 10%, lower; the sale may still fail. Source

New information and expectations

Earnings, weather or policy news can change what participants are willing to pay; the direction is not predictable from the headline alone. Desi example: a rumour of rain changes expected vegetable arrivals, but the rain may never arrive. ILLUSTRATIVE ONLY — worked example: an imaginary share jumps from ₹50 to ₹54 (+8%), then drops to ₹48 (−11.11% from ₹54); both moves can happen. Source

Bid, ask and actual trades

The bid is a price a buyer offers; the ask is what a seller requests. The last traded price may differ from either quote when you place an order. Desi example: a buyer offers ₹95 for a sack and the seller asks ₹100. ILLUSTRATIVE ONLY — worked example: bid ₹95, ask ₹100, spread ₹5; buying at ₹100 and immediately selling at ₹95 would lose ₹5 before other charges. Source

Step by step — a simplified order-book movement

Imagine an entirely fictional market with five shares offered at ₹100 and a further ten offered at ₹101. A buy instruction seeks eight shares. Under certain hypothetical execution rules, five might fill at ₹100 and three at ₹101, giving 5 × ₹100 + 3 × ₹101 = ₹803 total, about ₹100.38 per share before fees. The last traded price could print ₹101 even though the buyer's average was lower. Later a new seller might offer at ₹99, changing the displayed ask without any guarantee that all holders can exit at ₹99. This example does not describe every market's matching engine; order types, priority, timing and hidden liquidity can alter actual fills. Record what was quoted separately from what was executed.

Desi example — mangoes after a sudden rainstorm

Consider a mango mandi in a fictional town. A heavy rain reduces the number of dry, sellable crates delivered in the morning. Some buyers still need fruit for orders they already promised, so several may offer higher prices for the remaining crates. But if customers cancel afternoon events, willingness to pay can also fall. The same rain may affect both available supply and buyers' needs in different ways. The fact that one vendor sells a crate for ₹900 does not mean all vendors sold their entire stock at that exact price. Real financial markets are not mango markets: shares are claims on businesses, market orders have formal execution rules, and news can alter expectations of future cash flows rather than only today's physical supply.

ILLUSTRATIVE ONLY — distinguish percent change and money change

Suppose a fictional price moves from ₹80 to ₹92. The arithmetic price change is ₹12 per unit, or ₹12 ÷ ₹80 × 100 = 15% relative to the starting price. If a hypothetical learner holds three units bought at ₹80, their quoted position value goes from ₹240 to ₹276, an unrealized ₹36 difference before costs; that is not received cash. Conversely if the reference price falls from ₹92 to ₹80, the percentage decrease measured against ₹92 is 12 ÷ 92 × 100, approximately 13.04%, not 15%. Percentage changes have a denominator, so reversing the direction does not reverse the percentage symmetrically. Fees, bid–ask spread, taxes, product-specific multipliers and actual execution prices can further change any realized result. No number here is a live quote.

Common Mistakes — narrative after the chart

A common error is attaching whichever headline seems plausible to a price move and claiming it proved the cause. Another is assuming that a large trading volume guarantees an upward trend; volume measures activity, not direction or investor profit. A third is treating a price jump in thin trading as evidence that every owner could sell their full holding at that quote. Students also confuse a percentage move with a particular person's gain, overlook their actual entry price, or compare markets denominated in different currencies without a conversion assumption. An order can be partly filled, and today's last price is not a promise about tomorrow's opening price. A credible explanation distinguishes verified events from hypotheses and acknowledges alternative drivers.

Real-world-style scenario — good news and lower price

Imagine a fictional company announces sales growth that sounds positive. A beginner expects its stock to rise, but the displayed price falls. That outcome is not automatically impossible or proof of manipulation. Some participants might previously have expected even stronger growth, some may need cash, and some may react to costs or a revised forecast in the same report. Market quotes also depend on which buyers and sellers are present at that moment. Without a verified record of individual orders and motivations, an outsider cannot prove which reason dominated. A careful classroom journalist writes: 'The fictional share price fell after the announcement; possible explanations require further evidence,' rather than stating an unsupported single cause. Markets incorporate expectations, not headlines in isolation.

Summary and recap — explain the move without overclaiming

Prices reflect interactions among orders, information, expectations, available liquidity and the rules of the particular venue. Demand and supply are conditional on price, not simple counts of people. One execution price is not the same as every participant's average, and a last quote is not a cash outcome for an investor who never traded. Percentage movements depend on the starting price, as the ₹80-to-₹92 example demonstrates. Desi mandi stories can illustrate how quantity and willingness change, but they cannot establish why a listed security moved on a particular day. A responsible learner records what is observed, identifies what remains a hypothesis, and resists converting one chart movement into a trading signal.