Learn mark-to-market settlement — Hinglish notes

5.1.4 · Stock-Market › Futures

Mark-to-Market Settlement Kya Hai?

Yeh har trading day hota hai jab tak contract expire na ho jaye ya close na ho jaye.

MTM Kyun Exist Karta Hai: Woh Problem Jo Yeh Solve Karta Hai

MTM ke bina: Socho tum long 1 Nifty futures contract ₹18,000 par khareedte ho. Market do hafte mein ₹15,000 tak crash ho jaata hai. Tumhare upar ₹1,50,000 ka loss hai [(18,000 - 15,000) × 50 lot size]. Expiry par, shayad tumhare paas woh paisa na ho—tum default karo, aur exchange (ya counterparty) loss uthata hai.

MTM ke saath: Har din jab market ₹100 girti hai, exchange turant ₹5,000 tumhare account se debit karta hai aur short seller ko credit karta hai. Agar tumhara margin maintenance margin se neeche gire, tumhe margin call milti hai aur tumhe funds aaj add karne padte hain. Agar nahi kar sakte, tumhari position liquidate ho jaati hai. Exchange kabhi losses ko invisibly pile up nahi hone deta.

Yeh kyun matter karta hai: MTM counterparty risk (risk ki tumhara opponent pay nahi karega) ko margin risk (risk ki tum daily margin requirements meet nahi kar sakte) mein transform karta hai. Exchange central counterparty ban jaata hai, aur daily cash settlement system ko robust banata hai.

Daily MTM Cash Flow Derive Karna

First Principles: Har Din Kya Change Hota Hai?

Day 0 par, tum price $F_{0}$ par ek long futures position enter karte ho. Exchange ise tumhara reference price set karta hai.

Day 1 par, settlement price $F_{1}$ hai. Tumhari position itni move hui hai:

Δ F = F_{1} - F_{0}

Ek long position ke liye (tumne $F_{0}$ par BUY karne ka agreement kiya):

Agar $F_{1} > F_{0}$ : Contract ab zyada worth hai (tum ise $F_{0}$ ki jagah $F_{1}$ par "sell" kar sakte ho). Tum profit karte ho.
Agar $F_{1} < F_{0}$ : Contract ki value kam hai. Tum lose karte ho.

Tumhara Day 1 cash flow (per unit):

$MTM P&L = (F_{1} - F_{0}) \times Contract Multiplier$

Agar positive → exchange tumhare margin account ko credit karta hai.
Agar negative → exchange tumhare margin account ko debit karta hai.

Day 2 ka reference price $F_{1}$ ho jaata hai, na ki $F_{0}$ . To Day 2 ka P&L hai $(F_{2} - F_{1}) \times Multiplier$ , aur aage bhi aise hi.

Multi-Day Cumulative P&L

$n$ dino mein, tumhara cumulative P&L daily MTM ka sum hota hai:

$Total P&L = \sum_{i = 1}^{n} (F_{i} - F_{i - 1}) \times M$

Yeh telescope karta hai:

= (F_{1} - F_{0}) + (F_{2} - F_{1}) + \dots + (F_{n} - F_{n - 1}) \times M = (F_{n} - F_{0}) \times M

Key insight: Chahe cash daily haath badle, cumulative P&L wahi hoga jo hota agar tum sirf end mein settle karte. MTM value create ya destroy nahi karta; yeh cash flow timing redistribute karta hai aur margin discipline enforce karta hai.

Example 1: Long Nifty Futures with Daily MTM

Setup:

Tum Day 0 par ₹18,000 par Nifty futures ka 1 lot long karte ho
Lot size = 50
Initial margin deposited = ₹1,00,000
Maintenance margin = ₹75,000

Day	Settlement Price	Din ka Price Change	MTM P&L (₹)	Margin Account (₹)
0	18,000	—	—	1,00,000
1	18,200	+200	+10,000	1,10,000
2	18,100	-100	-5,000	1,05,000
3	17,800	-300	-15,000	90,000
4	17,500	-300	-15,000	75,000 ⚠️

Step-by-step reasoning:

Day 1:

Settlement 18,000 → 18,200 move karta hai (+200 points)
MTM P&L = $(18, 200 - 18, 000) \times 50 = + ₹10, 000$
Tumhara margin account: ₹1,00,000 + ₹10,000 = ₹1,10,000
Yeh step kyun? Exchange aaj ki closing price vs. kal ki reference ke basis par tumhara profit calculate karta hai. Kyunki tum long ho aur price badhi, tum jeete; short party ka account ₹10,000 debit hota hai aur tumhara credit.

Day 2:

Settlement 18,200 → 18,100 (-100)
MTM P&L = $(18, 100 - 18, 200) \times 50 = - ₹5, 000$
Margin: ₹1,10,000 - ₹5,000 = ₹1,05,000
Kyun? Price giri, tum ₹5,000 lose karte ho. Reference kal ke liye 18,100 par reset ho jaati hai.

Day 3:

18,100 → 17,800 (-300)
MTM = $- 300 \times 50 = - ₹15, 000$
Margin: ₹1,05,000 - ₹15,000 = ₹90,000
Ab bhi maintenance margin (₹75,000) se upar hai, to koi margin call nahi.

Day 4:

17,800 → 17,500 (-300)
MTM = $- ₹15, 000$
Margin exactly ₹75,000 (maintenance margin) par aa jaata hai
Margin call issue hoti hai: Tumhe margin wapas initial margin (₹1,00,000) tak lane ke liye additional funds deposit karne padenge, ya exchange tumhari position liquidate kar dega.

Cumulative P&L check:

Entry: 18,000, Current: 17,500
Total P&L = $(17, 500 - 18, 000) \times 50 = - ₹25, 000$
Margin account: ₹1,00,000 - ₹25,000 = ₹75,000 ✓ table se match karta hai

Example 2: Short Position MTM

Setup:

$80/barrel par 1 contract short
Contract size = 100 barrels
Initial margin = $5,000

Day	Settlement	Change	MTM P&L ($)	Margin ($)
0	80	—	—	5,000
1	78	-2	+200	5,200
2	82	+4	-400	4,800

Day 1:

Price 80 → 78 girti hai (-$2)
Tum short ho: Tumne $80 par SELL karne ka agreement kiya. Agar price girti hai, tum profit karte ho (tum "buy back" sasta kar sakte ho).
MTM P&L = $(80 - 78) \times 100 = +\$ 200$
Kyun? Shorts ke liye formula hai $(F_{old} - F_{new}) \times M$ . Price decrease → short profits.
Margin: $5, 000 +$ 200 = $5,200

Day 2:

Price 78 → 82 jump karta hai (+$4)
MTM P&L = $(78 - 82) \times 100 = -\$ 400$
Margin: $5, 200 -$ 400 = $4,800
Kyun? Price badhi; shorts lose karte hain. Tumne $80 p a r se l l k a r n e k aa g r ee m e n t k i y a, l e k inabma r k e t$ 82 par hai—tumhari position entry se $2/barrel underwater hai.

Cumulative check:

Entry $80, c u r r e n t$ 82
Short ke liye total loss = $(80 - 82) \times 100 = -\$ 200$
Margin: $5, 000 -$ 200 = $4,800 ✓

Margin Account Mechanics

$Margin_{t} = Margin_{t - 1} + MTM P&L_{t}$

Jahan:

$Margin_{t - 1}$ = aaj ki settlement se pehle ka balance
$MTM P&L_{t}$ = longs ke liye $(F_{t} - F_{t - 1}) \times M$ , shorts ke liye $(F_{t - 1} - F_{t}) \times M$

Margin call trigger:

If Margin_{t} < Maintenance Margin ⟹ Margin Call

Tumhe deposit karna hoga:

Funds Required = Initial Margin - Margin_{t}

Yeh structure kyun? Initial margin ek buffer hai. Maintenance margin red line hai. Dono ke beech ka gap normal daily volatility ke liye allow karta hai bina constant margin calls ke. Jab tum maintenance tak pahuncho, tumhe initial tak top up karna hoga—yeh ensure karta hai ki exchange ke paas hamesha ek cushion rahe tumhare losses ke exchange ki problem banne se pehle.

Common Mistakes & Steel-manning

Kyun sahi lagta hai: Tum daily apne account se cash jaate dekhte ho jab tum lose kar rahe hote ho, to lagta hai ki MTM "extra cost" kar raha hai.

Steel-man: Cash flow ke baare mein chinta karna rational hai. Agar tumhare paas ₹1,00,000 margin mein locked hai aur prices tumhare against move karti hain, tumhe turant additional cash chahiye—chahe tumhe yakeen ho ki market recover karegi. Yeh ek real liquidity constraint hai.

Fix: MTM tumhara economic P&L nahi badalta. Chahe cash daily move ho ya expiry par, tumhara profit/loss phir bhi $(F_{final} - F_{entry}) \times M$ hoga. MTM sirf kab cash move hota hai yeh change karta hai aur enforce karta hai ki tum losses ko margin se aage nahi jaane de sakte. Ise "pay-as-you-lose" vs. "pay-at-the-end" samjho—total bill same hai, lekin timing system ko protect karti hai.

Kyun sahi lagta hai: Tumhara strong thesis hai. Market temporarily drop hui; tumhe pata hai ki expiry tak recover ho jaayegi. Loss par liquidate kyun karo?

Steel-man: Yeh confidence justified bhi ho sakta hai. Forced liquidation worst moment par woh losses lock in kar sakti hai jo volatility hold karne par avoid ho jaate.

Fix: Exchange tumhara thesis nahi jaanta. Uske perspective se, har defaulted trader kabhi na kabhi yahi sochta tha "yeh wapas aayega." Margin rules non-negotiable hain. Solution: apni position size karo taaki adverse moves bhi tumhare maintenance margin tak na pahunche. Agar tum daily volatility afford nahi kar sakte, tumhari position bahut badi hai. Futures leveraged hain; leverage ka respect karo.

Formula insight:

Safe Position Size = \frac{Available Capital - Initial Margin}{Daily Volatility \times M \times Risk Tolerance (days)}

Example: Agar Nifty daily volatility ±200 points hai aur tum margin call se pehle 3 bure din tolerate kar sakte ho, ensure karo:

Margin Buffer \geq 3 \times 200 \times 50 = ₹30, 000

Worked Example 3: Ek Hafte Mein Cumulative MTM

1 Gold futures $2,000/oz par
Contract size = 100 oz
Initial margin = $10,000

Day	Price	Change	Daily MTM ($)	Cumulative MTM ($)	Margin ($)
0	2,000	—	—	0	10,000
1	2,020	+20	+2,000	+2,000	12,000
2	2,010	-10	-1,000	+1,000	11,000
3	2,030	+20	+2,000	+3,000	13,000
4	2,015	-15	-1,500	+1,500	11,500
5	2,025	+10	+1,000	+2,500	12,500

Daily MTM formula (long position):

MTM_{day i} = (P_{i} - P_{i - 1}) \times 100

Day 1: $(2,020 - 2,000) \times 100 = +\$ 2,000 $* * D a y 2 : * *$ (2,010 - 2,020) \times 100 = -$1,000 $(r e f er e n ce k a l k a 2, 020 t ha) * * D a y 3 : * *$ (2,030 - 2,010) \times 100 = +$2,000$
Aur aise hi aage.

Day 5 par Cumulative MTM:

+ 2, 000 - 1, 000 + 2, 000 - 1, 500 + 1, 000 = + $2, 500

Direct calculation:

(2, 025 - 2, 000) \times 100 = + $2, 500 ✓

Dono kyun track karo? Daily MTM cash flow volatility dikhata hai (tumhe liquid funds chahiye). Cumulative MTM tumhari actual economic position dikhata hai. Dono matter karte hain: ek operations ke liye, ek strategy ke liye.

Settlement Price: Yeh Kaise Determine Hoti Hai

Sirf last trade kyun nahi? Last trade ek outlier price par ek tiny lot ho sakta hai (manipulation risk). VWAP noise smooth out karta hai aur true market consensus represent karta hai.

Example: Nifty futures last minute mein 18,000, 18,010, 18,005, 18,015 par trade karta hai. 3:29:59 PM par ek single 1-lot trade 18,100 par hota hai. Agar exchange woh use karta, to sab ka MTM ek fluke trade par wildly swing karta. Iske bajaye, VWAP ~18,008 ho sakta hai, jo actual liquidity reflect karta hai.

MTM vs. Physical Delivery Settlement

Feature	MTM (Daily)	Physical Delivery (Expiry)
Cash Flow Timing	Har din	Sirf expiry par
Counterparty Risk	Minimal (daily settlement)	High (expiry tak accumulate hota hai)
Margin Requirements	Daily enforce hoti hain	Expiry par enforce (default ho to bahut der)
Suitable For	Sabhi futures (index, commodities, etc.)	Commodity futures with actual delivery intent

Key distinction: Woh commodity futures bhi jo physical delivery allow karte hain (jaise crude oil), daily MTM rakhte hain expiry tak. Physical delivery ek alag final settlement event hai—tum phir bhi har din mark-to-market hote ho usse lead up karte hue.

Active Recall Challenges

Recall MTM ko 12 Saal ke Bacche ko Explain Karo

Socho tum aur tumhara dost kal ke cricket match score par bet lagate ho. Tum ₹100 bet karte ho ki Team A 300+ score karegi. Lekin match khatam hone ka wait karne ki jagah, har ghante tum current score check karte ho. Agar Team A achha kar rahi hai (40 overs mein 250 runs), tumhara dost tumhe ₹20 abhi deta hai "partial payment" ke taur par kyunki tum abhi tak jeet rahe ho. Agar Team A bura kar rahi hai (40 overs mein 150), tum apne dost ko ₹20 dete ho kyunki tum haar rahe ho.

At the end of the match, you've already been paying and receiving money all along, so the final settlement is just a small adjustment. That's mark-to-market! In futures trading, the exchange does this every single day—if your bet (position) is winning, you get cash; if losing, you pay cash. This way, no one can disappear with a huge debt at the end. You settle a little bit every day, so it's always fair and safe.

Money Transfers Move daily

Margin Triggers Matter: Agar tumhara margin floor ko hit kare, aur add karo nahi to bahar ho jaao.

Visual: Ek seesaw imagine karo jahan cash losers se winners ki taraf har sunset ko flow karta hai—exchange fulcrum hai, ise daily balanced rakhta hai.

Connections

5.1.01-Futures-contracts-basics — MTM futures contracts se create hone wali obligations enforce karta hai
5.1.03-Margin-requirements — MTM determine karta hai ki margin calls kab trigger hongi
5.1.05-Basis-and-convergence — Daily settlement price basis tracking ko affect karti hai
5.2.01-Hedging-with-futures — MTM cash flow hedge liquidity planning ko impact karta hai
5.3.02-Clearing-house-role — Clearing house woh mechanism hai jo MTM execute karta hai

Summary

Mark-to-market settlement futures P&L ki daily reconciliation hai. Har din:

Exchange ek settlement price fix karta hai
$(F_{today} - F_{yesterday}) \times Contract Size$ calculate karta hai
Cash move karta hai: winners ko credit, losers ko debit karta hai
Kal ka reference price reset karta hai

Yeh counterparty default risk ko rokta hai aur margin discipline enforce karta hai. Tumhara cumulative P&L wahi hoga jo final settlement ke saath hota, lekin cash flow timing accelerate hoti hai. Agar tumhara margin account maintenance margin se neeche gire, tumhe margin call aati hai—funds add karo ya liquidate ho jao.

MTM futures markets ki heartbeat hai: yeh system ko alive rakhta hai yeh ensure karke ki losses kabhi silently accumulate nahi hoti.

#flashcards/stock-market

Mark-to-market settlement kya hai? :: Daily process jisme exchange settlement price ke basis par open futures positions ka profit/loss calculate karta hai, losers ke accounts ko debit karta hai, winners ke accounts ko credit karta hai, aur agle din ke liye reference price reset karta hai.

Exchanges MTM kyun use karte hain sirf expiry par settle karne ki jagah?

Counterparty risk rokne ke liye. Daily cash settlement ensure karta hai ki losses kabhi silently accumulate nahi hoti—agar ek trader margin requirements meet nahi kar sakta, position turant liquidate ho jaati hai, system ko default se bachata hai.

Long futures position par daily MTM P&L ka formula kya hai?

MTM P&L = (Aaj ki Settlement Price - Kal ki Settlement Price) × Contract Multiplier. Agar positive, tumhara account credit hota hai; agar negative, debit hota hai.

Short positions ke liye MTM P&L kaise differ karta hai?

Shorts ke liye, MTM P&L = (Kal ki Price - Aaj ki Price) × Multiplier. Shorts profit karte hain jab prices girein, lose karte hain jab prices badhein.

Jab tumhara margin account maintenance margin se neeche gire tab kya hota hai?

Tumhe margin call milti hai aur tumhe funds deposit karne padte hain apna margin initial margin level par restore karne ke liye. Agar nahi karte, exchange tumhari position liquidate kar deta hai.

Kya MTM tumhara total economic P&L change karta hai expiry par sirf settle karne se compare mein?

Nahi. Cumulative MTM P&L equals (Final Price - Entry Price) × Multiplier, wahi jo expiry par ek baar settle karne par hota. MTM cash flows ki timing change karta hai, total amount nahi.

Settlement price kya hai aur sirf last traded price kyun nahi use karte?

Settlement price MTM ke liye official price hai, often last trading minutes ka VWAP. Sirf last trade use karne se manipulation ka risk hai ya low-volume outlier trades se noise aa sakti hai.

Tum ₹18,000 par 1 Nifty futures long karte ho (lot size 50). Settlement agli din ₹17,700 par move karta hai. Tumhara MTM cash flow kya hai?

(17, 700 - 18, 000) \times 50 = - ₹15, 000

. Tumhara margin account ₹15,000 debit hota hai.

Agar initial margin ₹1,00,000 hai aur maintenance margin ₹75,000, kitne loss ke baad tumhe margin call aayegi?

₹25,000 ka loss tumhara margin ₹75,000 (maintenance level) par le aayega, margin call trigger karega.

MTM ko exchanges ke liye ek risk management tool kyun maana jaata hai?

Yeh counterparty risk (koi expiry par pay nahi karega) ko margin risk mein convert karta hai (jo daily monitor aur enforce hota hai). Exchange ke paas hamesha ek buffer rehta hai losses unrecoverable hone se pehle.