Fii Flow Signal Vs Noise

Tuesday close. Three numbers on the desk.

FII net buyer plus Rs 1329 cr. DII net seller minus Rs 1959 cr. Sensex up 0.49 pct, IT-led, TCS and INFY and HCLTECH each up three to four pct. The four month narrative was clean before yesterday. FII selling YTD record. DII catching every dip. SIP arrival as the floor. Repeat as needed. The flow chart had become the verdict.

Yesterday all three legs moved against the story and the headline still printed green. If flow was the verdict, the index should have fallen. It did not.

The lesson is the one the flow data has always taught and almost nobody actually internalises. It is a record, not a forecast. It lands after the decision and after the trade. By the time you read the print on your screen, the position is on the book and the price is in the chart. The cash market closes at 15:30. The provisional FII DII number is on the exchange site by 15:45. The settled number hits mainstream feeds around 19:00. The next session opens at 09:15. The flow file is a sentence about yesterday by the time anyone reads it. Sometimes a useful sentence. Never a verdict on tomorrow.

Three things to hold while you read it. A flow print is a record, not a forecast. Use it to understand what happened, not to decide what happens next. FII selling Reliance and FII selling Nifty are two different problems. The line is one number across thousands of names. The same minus Rs 5000 cr can be a rebalance out of two heavyweights or a thin trim across the universe. And the structural buyer is your behaviour. Rs 26500 cr a month of SIP lands at AMCs. Spread across 21 trading days that is roughly Rs 1260 cr arriving daily. The number does not care about the headline.

Flow is a sentence about yesterday. The verdict is in the price. The portfolio is your behaviour.

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