In the stock markets, a lot represents the standardized number of entities of a financial instrument as set out by an exchange. A lot size is the minimum standardized quantity of stock/derivatives per contract (Futures and options). The number of entities is determined by the lot size. In the stock market, most stocks trade in a lot size of 500-1000 shares, some higher-priced stocks may trade in lots of 100- 200 shares.
Below are the NSE F&O Lot Sizes for the stocks and indices traded on NSE.
| Symbol | Lot Size |
| BANKNIFTY | 15 |
| FinNifty | 40 |
| NIFTY | 50 |
| Midcp Nifty | 75 |
| AXISBANK | 1200 |
| BANKBARODA | 5850 |
| CANBK | 2700 |
| FEDERALBNK | 7000 |
| HDFCBANK | 250 |
| ICICIBANK | 1375 |
| INDIANB | 2000 |
| INDUSINDBK | 400 |
| KOTAKBANK | 800 |
| PNB | 7000 |
| RBLBANK | 1200 |
| SBIN | 3000 |
| YESBANK | 1750 |
| ACC | 400 |
| ADANIENT | 4000 |
| ADANIPORTS | 2500 |
| ADANIPOWER | 10000 |
| AJANTPHARM | 500 |
| AMARAJABAT | 800 |
| AMBUJACEM | 2500 |
| APOLLOHOSP | 500 |
| APOLLOTYRE | 3500 |
| ASHOKLEY | 5000 |
| ASIANPAINT | 200 |
| AUROPHARMA | 1000 |
| BAJAJ-AUTO | 250 |
| BAJAJFINSV | 125 |
| BAJFINANCE | 250 |
| BALKRISIND | 300 |
| BATAINDIA | 275 |
| BEL | 6000 |
| BEML | 700 |
| BERGEPAINT | 2200 |
| BHARATFORG | 1300 |
| BHARTIARTL | 2000 |
| BHEL | 10400 |
| BIOCON | 2300 |
| BOSCHLTD | 40 |
| BPCL | 1800 |
| BRITANNIA | 200 |
| BSOFT | 200 |
| CADILAHC | 2200 |
| CEATLTD | 400 |
| CENTURYTEX | 600 |
| CHOLAFIN | 2500 |
| CIPLA | 1150 |
| COALINDIA | 2700 |
| COLPAL | 700 |
| CONCOR | 1563 |
| CUMMINSIND | 900 |
| DABUR | 1250 |
| DISHTV | 8000 |
| DIVISLAB | 150 |
| DLF | 3300 |
| DRREDDY | 250 |
| EICHERMOT | 30 |
| EQUITAS | 4900 |
| ESCORTS | 1100 |
| EXIDEIND | 2900 |
| GAIL | 5334 |
| GLENMARK | 1400 |
| GMRINFRA | 45000 |
| GODREJCP | 800 |
| GODREJIND | 650 |
| GRASIM | 750 |
| HAVELLS | 1000 |
| HCLTECH | 1400 |
| HDFC | 250 |
| HDFCLIFE | 900 |
| HEROMOTOCO | 200 |
| HINDALCO | 3500 |
| HINDPETRO | 2100 |
| HINDUNILVR | 300 |
| IBULHSGFIN | 1200 |
| ICICIPRULI | 1500 |
| IDEA | 13200 |
| IDFC | 13200 |
| IDFCFIRSTB | 12000 |
| IFCI | 35000 |
| IGL | 2750 |
| INDIACEM | 4500 |
| INDIGO | 300 |
| INFIBEAM | 4000 |
| INFY | 1200 |
| IOC | 4000 |
| IRB | 3200 |
| ITC | 2400 |
| JINDALSTEL | 1250 |
| JSWSTEEL | 2300 |
| JUBLFOOD | 500 |
| JUSTDIAL | 1400 |
| L&TFH | 5600 |
| LICHSGFIN | 1300 |
| LT | 375 |
| LUPIN | 700 |
| M&M | 1000 |
| M&MFIN | 1600 |
| MANAPPURAM | 6000 |
| MARICO | 1300 |
| MARUTI | 100 |
| MCDOWELL-N | 1250 |
| MCX | 400 |
| MFSL | 1300 |
| MGL | 600 |
| MINDTREE | 800 |
| MOTHERSUMI | 5000 |
| MRF | 10 |
| MUTHOOTFIN | 1500 |
| NATIONALUM | 4250 |
| NCC | 9000 |
| NESTLEIND | 40 |
| NIITTECH | 375 |
| NMDC | 3350 |
| NTPC | 4800 |
| ONGC | 3850 |
| PAGEIND | 15 |
| PETRONET | 3000 |
| PFC | 6200 |
| PIDILITIND | 500 |
| POWERGRID | 4000 |
| PVR | 400 |
| RAMCOCEM | 800 |
| RELIANCE | 500 |
| SHREECEM | 50 |
| SIEMENS | 550 |
| SRF | 250 |
| SRTRANSFIN | 600 |
| SUNPHARMA | 1250 |
| SUNTV | 1200 |
| TATACHEM | 900 |
| TATAELXSI | 400 |
| TATAGLOBAL | 2250 |
| TATAMOTORS | 1425 |
| TATAPOWER | 3375 |
| TATASTEEL | 1500 |
| TCS | 250 |
| TECHM | 1200 |
| TITAN | 750 |
| TORNTPHARM | 500 |
| TORNTPOWER | 3000 |
| TV18BRDCST | 13000 |
| TVSMOTOR | 1350 |
| UBL | 700 |
| UJJIVAN | 1600 |
| ULTRACEMCO | 200 |
| UPL | 1200 |
| VEDL | 1550 |
| VGUARD | 3000 |
| VOLTAS | 1000 |
| WIPRO | 2400 |
| WOCKPHARMA | 900 |
| ZEEL | 1300 |
Lot size is the total number of contracts contained in one derivative security in trading options. Lot size theory enables financial markets to regulate price quotes.