6.4.9
Intuition Ek-line intuitionPOC woh price hai jahan market ne session ke dauran sabse zyada time spend kiya / sabse zyada volume trade hua. Yeh price of maximum agreement hai — woh level jahan buyers AUR sellers dono baar baar wapas aate rahe. Isse market ki "center of gravity" samjho.
Definition Point of Control (POC)POC woh single price level hai jahan sabse zyada traded volume (ya sabse zyada time, TPO profiles mein) hota hai — kisi chosen session ke Volume/Market Profile ke andar.
Yeh ek volume-at-price histogram se banta hai (volume ko horizontally plot kiya jaata hai price ke against, jo vertical axis par hoti hai).
Sabse lamba horizontal bar = POC.Yeh fairest value ki price mark karta hai — jahan auction ko sabse zyada acceptance mili.
Yeh kyun matter karta hai?
Price ek auction hai. Yeh un prices se door jaata hai jinhe log reject karte hain aur un prices par rukta hai jinhe log accept karte hain.
POC sabse zyada accepted price hai ⇒ yeh ek magnet ki tarah kaam karta hai (price aksar ise dobara visit karta hai) aur support/resistance ki tarah bhi jab value kahin aur shift ho jaati hai.
Hum koi formula dump nahi kar rahe. Hum profile ko step by step construct karte hain.
arg max Mean price ek patli, kam-traded zone mein ho sakti hai (jaise do busy clusters ke beech mein). POC ek actually heavily traded price hona chahiye. Isliye hum peak bin pick karte hain, centroid nahi.
Worked example Example 1 — Chhoti si tapeEk 5-tick session ke trades (price ::: size):
100.00 ::: 40
100.25 ::: 120
100.50 ::: 300
100.75 ::: 90
101.00 ::: 50
Step 1: bins already = woh 5 prices hain (Δ p = 0.25 Kyun? Prices discrete ticks hain.
Step 2: volumes hain 40, 120, 300, 90, 50. Kyun? Har price par size sum karo.
Step 3: max = 300 100.50 Kyun? arg max POC = 100.50. Yahan auction sabse zyada accepted tha.
Worked example Example 2 — Do clusters, tricky mean
50.0 ::: 500
50.1 ::: 20
50.2 ::: 15
50.3 ::: 480
Volume-weighted mean = 1015 50.0 ( 500 ) + 50.1 ( 20 ) + 50.2 ( 15 ) + 50.3 ( 480 ) ≈ 50.15 POC = 50.0 (highest bar, 500).
Yeh kyun matter karta hai: POC ≠ VWAP. POC ek real high-volume shelf par hota hai; mean clusters ke beech vacuum mein float kar sakta hai.
Worked example Example 3 — Naked POC as a targetKal ka POC 205 tha lekin price 210 par close hua aur 205 ko dobara touch nahi kiya (yeh ek naked / virgin POC hai).
Aaj price neeche drift karti hai; traders expect karte hain ki 205 magnet ki tarah kaam karega.
Yeh step kyun? Unfilled fair-value levels price ko attract karte hain kyunki auction "interrupt" hua tha — market aksar wahan wapas jaata hai dobara re-auction karne.
Common mistake "POC = din ke range ka middle."Kyun sahi lagta hai: value aksar centrally cluster hoti hai, isliye mid-range ko eyeball karne par kabhi kabhi POC ke paas aa jaate hain.
Fix: POC highest-volume bin hai, geometric midpoint nahi. b-shaped ya P-shaped (skewed) profile mein POC middle se bahut door hota hai.
Common mistake "POC aur VWAP same cheez hain."Kyun sahi lagta hai: dono "average" activity summarise karte hain aur aksar paas paas hote hain.
Fix: VWAP ek volume-weighted mean hai (ek computed number jo zaruri nahi ki traded price ho); POC ek actual traded price hai (arg max
Common mistake "POC din bhar move nahi karta."Kyun sahi lagta hai: finished chart par toh fixed lagta hai.
Fix: live trading ke dauran developing POC shift karta hai jab nayi volume alag rows par pile hoti hai. Yeh sirf session close par "freeze" hota hai.
Common mistake "Bade price bins se same POC milta hai."Kyun sahi lagta hai: peak obvious lagta hai.
Fix: bin width Δ p Δ p
Recall Feynman: 12-saal ke bache ko samjhaoSocho ek ice-cream stall hai. Kuch prices par cone khareedne wala koi nahi hota, kuch prices par BAHUT SAARE log khareedne aate hain. Agar tum count karo ki har price par kitne cones bika aur unhe stack karo, toh jis price ka stack sabse lamba ho — wahan buyers aur sellers dono sabse zyada khush the — wahi POC hai. Market usi "sab ke liye theek hai" wali price par baar baar wapas aati hai, jaise ek ball bowl ke bottom par wapas roll karti hai.
POC = "Peak Of Commerce." Sabse lamba bar = sabse zyada business = woh price jis par sabne agree kiya.
Ek sentence mein, POC kya hai?
Volume bins par kaun si operation POC deti hai — mean ya argmax?
POC ≠ VWAP kyun ho sakta hai?
Naked POC kya hota hai aur yeh target kyun hota hai?
POC kya hai? Woh single price level jahan ek session ke profile mein sabse zyada traded volume (ya time) hota hai — price of maximum agreement.
POC volume histogram se kaise compute hota hai? POC = bins par V_i ka argmax, yaani woh price bin jisme sabse zyada traded volume ho.
POC argmax kyun hai, volume-weighted mean kyun nahi? Mean clusters ke beech ek patli zone mein aa sakti hai; POC ko actually heavily-traded price hona chahiye, isliye hum peak bin lete hain.
POC vs VWAP — key difference? VWAP ek volume-weighted average number hai (zaruri nahi ki real traded price ho); POC ek actual traded price hai (sabse lamba histogram bar).
Naked (virgin) POC kya hota hai? Pichle session ka woh POC jahan price wapas nahi aayi; yeh aksar magnet/target ki tarah kaam karta hai kyunki woh fair value un-re-auctioned rahi.
Kya POC session ke dauran move karta hai? Haan — developing POC shift karta hai jab nayi rows par volume accumulate hoti hai; yeh sirf close par freeze hota hai.
Bin width Δp POC ko kaise affect karta hai? Bade bins clusters ko merge kar dete hain aur POC ko shift kar sakte hain; consistent 1-tick (ya fixed) bin width use karo.
Price POC par wapas kyun aati hai? Yeh sabse accepted (fairest) price hai, jo center of gravity / support-resistance magnet ki tarah kaam karta hai.
Volume Profile — woh histogram jisme POC rehta hai.Value Area (VA & VAH-VAL) — POC ke around ~70% volume band.VWAP — contrast: average vs peak.Market Profile & TPO — POC time ke basis par, volume ke bajaye.Order Flow & Tape Reading — raw prints jo profile ko feed karte hain.Support and Resistance — POC ek dynamic S/R level ki tarah.Auction Market Theory — kyun acceptance ek price par concentrate hoti hai.
lingers at accepted prices
POC price of max agreement
Tape prints price and size
Volume-at-price histogram
Volume-weighted mean centroid
