I am consuming tick-by-tick data for quite some time. And I have observed that value of "tradable" key is always "false". Is there any specific reason for this ? Here is one sample data given. ``` {"mode":"full","tradable":false,"instrumentToken":1270529,"lastTradedPrice":279.5,"highPrice":279.8,"lowPrice":277.3,"openPrice":277.3,"closePrice":276.9,"change":0.9389671361502431,"lastTradedQuantity":150.0,"averageTradePrice":278.74,"volumeTradedToday":125510.0,"totalBuyQuantity":459285.0,"totalSellQuantity":344158.0,"lastTradedTime":1525319128000,"oi":0.0,"tickTimestamp":1525319128000,"openInterestDayHigh":0.0,"openInterestDayLow":0.0,"marketDepth":{"buy":[{"quantity":860,"price":279.5,"orders":3},{"quantity":1238,"price":279.45,"orders":2},{"quantity":1631,"price":279.4,"orders":5},{"quantity":2750,"price":279.35,"orders":1},{"quantity":45,"price":279.3,"orders":1}],"sell":[{"quantity":1042,"price":279.8,"orders":2},{"quantity":702,"price":279.85,"orders":1},{"quantity":3556,"price":279.9,"orders":7},{"quantity":2898,"price":279.95,"orders":5},{"quantity":5047,"price":280.0,"orders":16}]}} ``` "instrumentToken":1270529 -> ICICI Bank "lastTradedTime":1525319128000 -> May 3rd, 2018 9:15:28 AM
