Learn how to read OHLC data

3.1.2 · Stock-Market › Charts, Trends & Dow Theory

YEH kyun matter karta hai: Raw price lists overwhelming hoti hain. OHLC hazaron trades ko chaar numbers mein compress karta hai jo buyers aur sellers ke beech poori ladaai ko capture karte hain. Yeh har chart pattern, indicator, aur trading decision ki foundation hai.

YEH psychology kaise reveal karta hai:

• Open dikhata hai ki consensus kahan se shuru hua
• High maximum buying enthusiasm reveal karta hai
• Low maximum fear/selling pressure expose karta hai
• Close final verdict hai—aaj ke tug-of-war mein kaunsi price jeeti

Har Component ka Matlab

• Open (O): Session shuru hone par first traded price
• High (H): Poore session mein reach ki gayi highest price
• Low (L): Poore session mein reach ki gayi lowest price
• Close (C): Session khatam hone par last traded price

Time-frame flexibility: Yeh chaar values KISI BHI duration ke liye kaam karte hain—5-minute chart mein har 5-minute bar ka OHLC hota hai, daily chart mein har trading day ka OHLC hota hai.

OHLC ko scratch se build karte hain. Imagine karo ek stock ek session mein in prices par trade karta hai: $\text{All trades: }\{100,102,101,105103,99,104,106105\}$

Step 1 — Open: By definition, chronological pehli trade: $O=\text{first element}=100$ KYUN? Kyunki yeh initial equilibrium price establish karta hai jahan market business ke liye khuli.

Step 2 — Close: By definition, chronological aakhri trade: $C=\text{last element}=105$ KYUN? Kyunki yeh woh final price hai jis par market agree ki—"closing argument" jo overnight sentiment set karta hai.

Step 3 — High: Sabhi trades ka maximum: $H=\max (\text{all trades})=106$ KYUN? Yeh woh point mark karta hai jahan buying power sabse strong thi—bulls jitna ho sake utna aage gaye.

Step 4 — Low: Sabhi trades ka minimum: $L=\min (\text{all trades})=99$ KYUN? Yeh maximum fear/selling mark karta hai—bears jitna ho sake utna niche gaye.

Compression Principle: 9 sabhi trades store karne ki jagah, hum $(O,H,L,C)=(100,106,99,105)$ mein compress karte hain. Humnein granularity khoi lekin interpretability gain ki—yeh chaar numbers hume batate hain:

• 100 par shuru kiya ✓
• Bulls 106 tak pahuche ✓
• Bears 99 tak le gaye ✓
• 105 par close hua (bulls ne din jeeta) ✓

Visual Representations

OHLC data do main formats mein display hota hai:

1. OHLC Bar Chart

Vertical kyun? Line trading range (H - L) span karti hai, volatility dikhati hai. Horizontal ticks kyun? Yeh directionality dikhate hain—agar right tick (Close) left tick (Open) se upar hai, toh buyers jeete; niche hai toh sellers jeete.

2. Candlestick Chart

Body color logic:

• Green/White: Close > Open (bullish, buyers jeete)
• Red/Black: Close < Open (bearish, sellers jeete)

Candlesticks kyun? Yeh visually parse karne mein faster hain—color instantly dikhata hai kaun jeeta, body size victory ka margin dikhata hai, wick length rejected prices dikhati hai.

Visual priority ki derivation: $\text{Body height}=|C-O|\text{(magnitude of directional move)}$ $\text{Upper wick}=H-\max (O,C)\text{(rejected highs)}$ $\text{Lower wick}=\min (O,C)-L\text{(rejected lows)}$

Diya gaya OHLC: $(98,105,97,104)$

Step-by-step interpretation:

1. Open = 98: Market ₹98 par trade karna shuru hua

   • Yeh kyun matter karta hai? Baseline set karta hai—sabhi price action iske relative hai.

2. High = 105: Bulls ne price ko ₹105 tak push kiya kisi point par

   • Yeh kyun matter karta hai? Dikhata hai ₹105 resistance ke roop mein test hua. Buyers yahan tak pay karne ko taiyar the.

3. Low = 97: Bears ne price ko ₹97 tak push kiya

   • Yeh kyun matter karta hai? Dikhata hai ₹97 support ke roop mein test hua. Sellers koshish ke bawajood niche nahi tod sake.

4. Close = 104: ₹104 par final settlement

   • Yeh kyun matter karta hai? Close > Open (+6 points), toh buyers ne din jeeta. Close High ke paas (104 vs 105) strong conviction dikhata hai—unhone zyaadatar gains hold kiye.

Visual: Green candlestick body 98→104 se, upper wick 105 tak (chhota), lower wick 97 tak (lamba).

Psychology: Bears ne shuruaat mein control lene ki koshish ki (97 tak push kiya), lekin bulls ne unhe haraaya aur strong close kiya. Chhota upper wick dikhata hai highs par sirf minor profit-taking hui.

Diya gaya OHLC: $(152,155,148,149)$

Step-by-step:

1. Open = 152: ₹152 par shuru hua
2. High = 155: Bulls ne rally ki koshish ki (open se +3)
   • Key insight: Woh isse sustain nahi kar sake (close high se kaafi niche hai).
3. Low = 148: Bears dominate kiye, open se -4 niche push kiya
4. Close = 149: ₹149 par settle hua, close < open (−3 points)

Visual: Red candlestick body 152→149 se, upper wick 155 tak, lower wick 148 tak.

Psychology: Bulls ka early optimism tha (155 tak pahuche), lekin bears ne move reverse kiya. Open se niche close = bearish day. Lekin, close > low (149 vs 148) dikhata hai buyers ne din ke aakhir mein ₹148 level defend kiya—partial recovery.

Diya gaya OHLC: $(200,203,198,200.5)$

Analysis:

• Open ≈ Close (200 vs 200.5, sirf ₹0.50 ka difference)
• High = 203 (+3), Low = 198 (−2)

Visual: Tiny body (almost ek line), lambe upper aur lower wicks.

Psychology: Ek doji indecision signal karta hai. Bulls 203 tak push kiye, bears 198 tak push kiye, lekin koi bhi side ground hold nahi kar saki—dono ne ek doosre ko cancel kar diya. Yeh aksar trend turning points ya consolidation zones par appear hota hai.

Information Extract Karna: The Trading Range

Trading range volatility measure karta hai: $\text{Range}=H-L$

KYUN matter karta hai:

• Large range (e.g., 20 points): High volatility, strong emotions, bade moves
• Small range (e.g., 2 points): Low volatility, boredom, consolidation

Close Position Ratio (hum range ke andar kahan finish kiye?): $\text{CPR}=\frac{C-L}{H-L}$

• CPR near 1.0: Range ke top par close kiya (bullish strength)
• CPR near 0.0: Range ke bottom par close kiya (bearish weakness)
• CPR ≈ 0.5: Range ke middle mein close kiya (neutral)

Example: Agar H=110, L=100, C=108: $\text{CPR}=\frac{108-100}{110-100}=\frac{8}{10}=0.8$ Interpretation: Range ke top 20% mein close kiya—strong bullish day chahe open higher raha ho.

OHLC: $(50,58,49,55)$

Range: $58-49=9$ points (decent volatility)

Directional move: $C-O=55-50=+5$ points (bullish)

CPR: $\frac{55-49}{58-49}=\frac{6}{9}=0.667$

Interpretation: Jabki close > open (bullish) hai, 0.67 ka CPR matlab hai hum range mein sirf 2/3 upar close kiye. Stock 58 (high) tak reach kiya lekin hold nahi kar saka—kuch profit-taking hui. Moderate bullish conviction, extreme nahi.

OHLC mein Common Patterns

Body vs. Wick Analysis

KYUN matter karta hai:

• High ratio (>0.7): Marubozu pattern—strong directional move, thodi indecision
• Low ratio (<0.3): Spinning top/doji—indecision, wicks dominate karte hain

Example:

• OHLC = $(100,110,99,109)$: Body = 9, Range = 11, Ratio = 0.82 → Strong trend
• OHLC = $(100,105,98,101)$: Body = 1, Range = 7, Ratio = 0.14 → Indecision

Upper/Lower Wick Significance

Upper wick = higher prices ki rejection: $\text{Upper wick}=H-\max (O,C)$

Lower wick = lower prices ki rejection: $\text{Lower wick}=\min (O,C)-L$

Lamba upper wick: Bears ne rally reject ki (bearish signal) Lamba lower wick: Bulls ne selloff reject kiya (bullish signal) Dono lambe: Extreme volatility, tug-of-war, koi winner nahi

Galat soch: "Close > Open hai, toh bullish hai—mujhe kharidna chahiye!"

Kyun sahi lagta hai: Green candles achhe dikhte hain, simple rule hai.

Fix: Tumhe ZAROOR jaanna chahiye ki close High/Low ke relative KAHAN hai AUR prior price action kya tha.

Counter-example:

• Stock kal ₹200 par tha
• Aaj ka OHLC = $(180,185,175,182)$
• Close > Open (182 > 180) = green candle ✓
• LEKIN: Stock 200→180 gap down hua, aur green candle ke bawajood, yeh kal se ₹18 niche hai!

Sahi interpretation: Yeh ek weak bounce ke saath bearish continuation hai, bullish reversal nahi. Open khud ek collapse tha.

Steel-man the mistake: Sirf O vs C par focus karna candlestick reading ko easy aur visual banata hai. Lekin price ek continuum mein exist karta hai—har bar pichle bar ki kahani se juda hai. Context isolated pattern-matching ko defeat karta hai.

Galat soch: "Long wick = reversal signal"

Kyun sahi lagta hai: Wicks rejection dikhate hain, rejection matlab reversal.

Fix: Wick significance is baat par depend karti hai ki KAUN SI boundary test hui.

Example:

• Uptrend: Lamba lower wick = buyers ne dip defend kiya (bullish continuation)
• Downtrend: Lamba lower wick = dead cat bounce, abhi bhi bearish

Steel-man: Wicks SACH MEIN rejection dikhate hain, jo real hai. Lekin upar jaane ki koshish ki rejection (upper wick) ka matlab niche jaane ki koshish ki rejection (lower wick) se opposite hai. Direction matter karta hai.

"Octopus Hugs Little Clownfish"

• Octopus = Open (kahani shuru karta hai)
• Hugs = High (affection/buying ka peak)
• Little = Low (chhota, bottom point)
• Clownfish = Close (colorful finish, mood batata hai)

Ya: "Only Happy Losers Close" → red candle mein, "loser" (bears) tumhe niche close karte hain!

Open = tumhare pehle cup ki price (₹10) High = kisi ne ek ghante mein sabse zyaada kya diya (ek customer ko bahut chahiye tha, usne ₹15 diya!) Low = tumne sabse saste mein kab becha (garm tha, tumne inventory clear karne ke liye ₹8 kar diya) Close = aakhri cup ki price (₹12)

Toh OHLC = (10, 15, 8, 12). Isko dekhke, kya hua? ₹10 par shuru kiya, kisi ne ₹15 tak diya (zabardast!), lekin ₹8 tak bhi jaana pada (ouch), aur ₹12 par khatam kiya. Kyunki close (₹12) > open (₹10), overall achha ghanta raha—tumne shuru se aakhir tak prices badhaai!

Exactly aise hi stock traders trading ke har ghante/din ko dekhte hain. Woh chaar numbers poori emotional kahani batate hain.

Connections

• 3.1.01-Understanding-Price-Charts — OHLC hi woh tarika hai jisse hum price charts par har point plot karte hain
• 3.1.03-Candlestick-Patterns — Yeh patterns OHLC relationships se bane hain
• 3.2.01-Support-and-Resistance — High/Low future support/resistance zones ban jaate hain
• 3.3.01-Trend-Identification — Higher closes/opens ki series uptrends define karti hai
• 4.1.02-MovingAverages — Close prices se calculate hote hain (OHLC ki sabse important value)
• 5.1.01-Volume-Analysis — Volume confirm karta hai ki OHLC moves genuine hain ya nahi
• 3.1.04-Gap-Analysis — Gaps tab aate hain jab aaj ka open ≠ kal ka close

Flashcards

OHLC data ke chaar components kya hain? :: Open (pehli price), High (maximum price), Low (minimum price), Close (aakhri price) kisi bhi given time period ke liye.

Concept Map